cessa tx science2 unit3 orig

7/31/2019 CESSA TX Science2 Unit3 Orig

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TX_ Science2_ Unit3_Orig

Unit 4: Matter

Why can we make a sand castle and not a water castle?

Why cant we see the wind that flies our kites?

How do the things around us differ? How are they the same?

Maria Francessa L. Abat

(Picture of Alon and Luna in the beach with Luna swimming, Alon making a sand castle and

the professor flying a kite)


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Lesson 1: Solids

Why does it hurt when we hit a door?

Why do some objects have shapes and others dont?

What are solids?


(Picture of Luna helping Alon to stand up after he bumped his head

at the door)

Luna: What happened Alon? Does it hurt?

Alon: Yes, the door was so hard and heavy. I slipped that is why I hit

my head.

Luna: I also noticed that the floor is newly cleaned. It is shiny and

very smooth.

Alon: Oh! Maybe that is why it is very slippery


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Exploration

Look at the picture, find the following. Color the following red


(Picture of a pool with beach ball, floaters, toys ,kites hidden in the picture)


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Explanation

Solid is one state of matter. You can describe it in so many ways like

Solid have shapes

Try to put the pencil on the plate. What happened? Now try putting the pencil inside the

glass. Did it change its shape? S

Solids have definite shape. It means that it will have the same shape where ever you put it

in.

Solids take up space


( Picture of Alon and Luna in a toy store)

(Picture of a glass, plate, and pencil)

(Picture of a school bags full of books and school materials that

Alon cant close any more)

Luna: Alon, I think its time to clean your bag. Youre going to

break your bag if

you will force all your books inside

Alon: Your right. I think I better live some my toys behind.


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Why cant Alon close his bag anymore? What are inside? What do you think will happen if Alon

will take out his toys from the bag?

Solids take up space. No two solids can share the same space at the same time. That is why

the bag cant be closed because Alons toys are taking so much space that his school things should

have taken up.

Solids have mass and weight

Mass is the amount of matter in an object. The more mass an object has, the heavier it will

be. Just like Lunas bag, she has so many books inside.

The heavier an object is the more weightit has. Weight is how much the earth is pulling an

object. The more mass an object has, the more earth will pull it.

Here are some more ways we can describe solids

Solids have temperature


( Continuation of the picture above)

Alon: Luna, I think your bag is very heavy, you want me to help you?

Luna: Thanks Alon, we have so many books to bring today plus my

friend is borrowing all my Harry Potter books.

Alon: All seven of them! Wow no wonder you look as if youre falling.

Let me help you out)

(Luna and Alon eating)

Luna; Hmm I love this mango flavored ice cream. Its so

cold.

Alon: ouch! This soup is so hotit hurt my toungue


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By means of our sense of touch we can describe if a solid is either hot or cold.

Temperature can be measured by means ofdegrees orcelsiu. The higher the degrees the hotter the

object is.

Solids have different textures

Solids differ in texture. Your sense of touch can help you describe the texture of solids.

Solids can have different texture from one another, cotton or glass may feel smooth to the touch if

we feel it.

Sand and stones may feel rough on our sense of touch. The peeling of guyabano may feel

rough or course to our touch. A lot of flowers and some leaves feel soft to touch.

Solids have different sizes

Solids differ in sizes. Some solids like table or chair are big.

Some solids like nails and coins are small. Sizes depend upon how the solid is created.

There could be a big glass or a small glass. A big bag or a small bag. Sizes can change on how it is

created.

Solids have different colors


(Luna and Alon washing the dishes)

Luna; Look Alon, I love the feel of this plate, it is so

smooth to touch.

Alon: Next time I will be the one to wash of the soap, this

scotch brite is so rough, no wonder all the left over on

(Luna and Alon still washing the dishes)

Luna: Alon, I think you should help to wash this very big

cooking pot lolo used to cook Laing into

Alon: Wow! It is big. I clean that while you clean these

smallspoons over here

(Alon and Luna is shoping with mom

Alon: Luna, can you please choose a pair of shoes now.

Luna: I cant decide, will it be red? Pink? Or the blue one?

Hmm..

Mom: You will be rett in an color dear.


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Solids differ in its color. They can have the same size or shape and they can have different

color. Some flowers are colorful; they can look bright or pale. These colors are seen through our

eyes and changes from one solid to another.

Exploration

Solid Observe

What you will need

1. Pencil

2. Paper

What to do

1. Find a partner. Both of you will be moving around the classroom.

2. Using the table below, you and your partner will list down all the things that you can observed

within the classroom. Both of you will only look for solid things in the classroom.

3. Make a list of their things and describe them based on their color, size,texture, shape and

mass/weight.

Object Occupies

space Shape Color Mass Weight Texture



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I found out that

_____________________________________________________________________________

_____________________________________________________________________________

Evaluation: Write if the description is about size, write if the description is about mass, write

if the description is about texture, write if the description is about color.

__________1. A big vase

__________2. Smooth skin

__________3. Heavy stones

__________4. Rough wall

__________5. Blue ball

Lesson 2 Introduction

Liquids

What are Liquiids?

Why does liquids follow the shape of its container?

Elaboration


(Picture of Alon holding a glass of water and spilled it on the floor)

Luna: What happened?Why did it spill?

Alon: I lost balance, and the water spilled from the glass.

Luna: Why do you think the water didnt stay in place inside the

glass?

Alon: Oh! Maybe because it only follows the movement of the glass

and when the glass moved, it moved too, but then it moved to big

that it went over the glass rim.


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There is a type of matter that follows or takes the shape of its container. This type of matter

is called Liquid.

Can you describe the shape or size of liquids in each container?

One popular example of liquid is water. If you put water in any container it will be shaped

based on the shape of its container, if you put it in a circle shaped container, the water will be

shaped circle. Liquid in bottles takes the shape of the bottle.

A liquid flows when poured into a container. It does not have a shape of its own. It takes

the shape of its container.

Exploration

Whats my shape?

What you will need.

1. 5 bottles of different sizes

2. Water


(Picture of Alon and Luna in the beverage section in the departmentstore)


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3. Pen and paper

What you will do.

1. Group yourselves into 3.

2. Line up the containers/bottles in the middle.

3.Each member will take turn in pouring water into each container.

4. Observe the shape of the water as it is poured into each container.

Answer the following questions

1. While observing the water as it is poured into each container, does the shape of the water

changed as its container is changed?_____________________________________________

2. Based on your observation, does the water have a shape of its own?

________________________________________________________________________

I found out that_______________________________________________________________

Evaluation

Write X if the description is wrong, write O if the description is correct.

_______________1. Water is a type of liquid.

_____________2. Water has a shape of its own.

_____________3. Liquid follows the shape of its container.

_____________4. If the container is changes, liquid will still have the same shape.

_____________5. The shape of the water changes with the shape of its container.

Introduction



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Describing Liquids

What do you think the crow is doing in the picture?

What will happen if the crow puts more pebble sin the pitcher with water?

What do you think is in the mind of the crow?

Elaboration

Liquids occupy space.

Do you recall the crow in the picture? What is it trying to do?

Liquids like solids occupy space too. If the crow will continue putting pebbles in the

pitcher, the water in the pitcher will rise until the rim of the pitcher and it will overflow.

This is because the water in the bottom of the pitcher moves up to occupy the space above because

the pebbles are in the bottom of the pitcher already. They cannot be in the same place at the same

time. The water spills over because the pebbles have taken its place at the bottom of the pitcher.

Liquids have mass


(Picture of the crow putting pebbles is a pitcher which is half full of

water.)

(Picture of two bottles, the other is full the other is full).


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Looking at the picture above, which of the two bottles are heavier? The bottle in the left?

Or in the right?

The bottle with more liquid inside it is heavier, this is because it has weight and mass.

Aside from these things there are also other things we should know about liquids.

1. Some liquids can be thick. Examples: ketchup, soup, honey

2. Liquids can have different tastes. Example: coffee (bitter), orange juice(sour), chocolate

drink(sweet)

3. There are liquids that arent supposed to be tasted. Examples: gasoline, alcohol, perfume and

others.

Exploration

To taste or not to taste?

What you will need:

1. Sample of different liquids:

Vinegar

Soy sauce

Alcohol

Chocolate

Perfume

Juice

2. By observing the said examples, the student will have to fill in the table.

Vinegar Soy Sauce Alcohol Chocolate Perfume Juice



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Color

Thickness

Taste

Answer the following questions.

1. Why are there some liquids that are not to be tasted? ______________________________

____________________________________________________________________________

2. Can you name other liquids that are not to be tasted? ________________________________

_____________________________________________________________________________

I found out that _______________________________________________________________

Evaluation

Study the pictures below and answer the following questions. Encircle your answer

1. Which liquids have sweet taste?

A. Soft drinks

B. Soy Sauce

C. Alcohol

D. Glass of water


(Pictures of sample of liquids in different containers each are labeled)

A. Soft drinks E. A bottle of Honey

B. A glass of water F. Alcohol

C. Soy sauce

D. Cup of coffee


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2. Which of the given examples are not to be tasted?

A. Softdrinks

B. Soy Sauce

C. Alcohol

D. Glass of water

3. Which of the examples are thick?

A. Honey

B. A glass of Water

C. Alcohol

D. Soft drinks

4. Which of the examples has bitter taste?

A. Coffee

B. Glass of water

C. Soy Sauce

D. Honey

5. Name other liquids that are not to be tasted.

Introduction

Describing Gases


(Pictures of gases in different places,

Wind blowing

Balloons

Inflating a tire

A boy flying a kite


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We move around a lot, and every movement we make we feel the air move around us. This

air is called Gas.

Can you touch air?

Can you hold it in your hands?

Can you feel Gas?

Elaboration

Gas is another kind of matter. We cannot hold or see it. The air we breathe is an example

of gas, oxygen and carbon dioxide in the air are forms of gases that we breathe and are found in the

air.

Gases maybe odorless, so we cant tell its smell, It can also be colorless, thats why we cant see it,

and tasteless, so we cannot tell if its sweet or salty.

Gases cannot be seen at most times, but we can feel it, when the air moves we feel it as

wind moving around us. Everything is surrounded by air, people, animal, plants and other things

are surrounded by air. We breathe air for us to live. Living things on land live in a sea of gases,

while living things that lives in sea also needs air, fishes also need air in order to breathe. They get

the air from the water. They breathe in air through their gills.


Picture of Alon blowing a Balloon and Luna playing with bubbles.

Alon: whats inside this balloon?

Luna: Ahmmm. I guess its the air you blow. Do you think its the

same with the bubbles?

Alon: I guess so, they both have gas inside and we cant see it.


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Exploration

Do I have a shape?

What you will need

Deflated balloons with different shapes.

Small plastics with different shapes.

What to do

1. Blow air into the balloons. Observe the shape of the air inside it.

2. Do the same with the plastics. Observe the shape of the air inside it.

3. Let the air out of the balloons and the plastics.

Answer the following questions

1. What happened when you blew air into the balloons?

_______________________________________

_______________________________________________________________________________

______


(Pictures of living things in the sea and living things in land)


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2. What happened when you blew air into the plastics? Does the same thing happened compared

with the balloons?

_________________________________________________________________________

3. Did the air have the same shape as of the balloons and plastics?

_______________________________

_______________________________________________________________________________

______

4. What happened to the balloon and plastics when you let the air out?

__________________________

_______________________________________________________________________________

______

I found out that

_______________________________________________________________________

_______________________________________________________________________________

______

Evaluation

Observe the picture and answer the following question.


(Picture of an Aquarium with bubbles, fishes, aquatic plants)


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1. Looking at the aquarium, which shows the presence of gas in it?

A. Bubbles

B. Fishes

C. Aquatic plants

D. Water

2. What examples of gas are to be found in the air we breathe and necessary for living?

A. Oxygen and carbon Dioxide

B. Hydrogen and helium

C. Helium and Methane

D. Nitrogen and Oxygen

3. Charity blew a heart shaped balloon, what will be the shape of the balloon after Charity blew it?

A. Circle

B. square

C. heart

D. star

4. Nathan is chewing a bubble gum, after chewing it, he blew the gum in his mouth and a bubble

was formed, what made the gum take shape?

A. Air from Nathans mouth.

B. Water from Nathans mouth.

C. Air and Water from Nathans mouth.

D. Elasticity of the gum.



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Introduction

Gas occupies space

What are the things in the picture?

What is inside these objects?

Elaboration

Air around us is gas. It is matter and it takes up space. It doesnt have a shape of its own

like liquid it takes the shape of its container. If we look at an empty bottle, are we sure it is empty?

Any other things in this earth, if its not filled with solid or liquid, it is filled with gas.


(Picture of Gas in different container)

Basketball

Tire

Empty bottle

(Pictures of balloons of different sizes)


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If we fill a balloon with air, the more we blew it the balloon gets bigger and bigger. The air we

blew inside the balloon occupies space and stretches the balloon and makes it bigger, It makes the

balloon heavier too.

This shows that gas also has weight and has mass. The more air is there in a container or in

rthe space, the more is its mass. A basketball can hold more air than a balloon, so it has more

mass. Therefore the basketball is heavier.

We are surrounded by air. Everything around us has gas. Fishes in the sea can live because

there is oxygen in the water.

Exploration

Weigh me in

What you need

Balloons (2 pieces)

Balancing scale

Pen and paper

What to do

1. Blew air into each balloon unequally. Label the first one balloon A, the other one balloon B.

2. Using the balancing scale , put both balloons each side.



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Answer the following questions.

1. Which balloon is bigger? _________________________________

2. From the balancing scale, which balloon is heavier? ___________________________________

3. Based on the balancing scale, which balloon has more mass?

_____________________________

I have found out that ____________________________________________________

Evaluation

Encircle the word that does not belong to the group.

1. Bottle Pillow Glass Bubbles

2. Sofa balloon Chair Air

3. Curtain Pencil alcohol oxygen

4. Basketball Bubbles Tire Glass

5. Juice tea Alcohol Tire

B. Write on the line if the statement is true, write if it is false.

______1. Oxygen is a gas

______2. Gas can be touched.

______3. Gas is everywhere.

______4. Air cannot be tasted.



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______5. Gas cannot be seen, but it can be felt.

Introduction

Describing behavior of liquids and gases

Which one can be touched?

Which can be seen?

Why is it that the other one can be touched and seen?

Elaboration

The three types of matter are Solid, Liquid and Gas. They all have mass and occupy space.

Liquids and gases both take the shape of its container because they dont have their own shape.

All three types of matter have mass so they all have weight.


(Pictures of blowing wind and flowing water)


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Liquids and gases both dont have their own shape, but liquid can be felt and touch, it can also be

tasted and seen

Gases such as air cannot be touched, seen or tasted.

Exploration

Compare us

What you need

1. Pen and paper

What to do

1. Get your pen and paper, list down things you can see around.

2. List down liquids and gases.

3. Describe characteristics of what you have listed using the checklist below.

Gases Liquids

Examples

Can you touch it?

Can you see it?

Can you taste it?

Does it have its own shape?

I found out that

______________________________________________________________________

_______________________________________________________________________________

_____



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Evaluation

Check the following characteristics that describes liquid

_________1. Shapeless

_________2. Tasteless

_________3. Formless

_________4. Has weight

_________5. Can be touched

Check the following characteristics that describes gas

__________1. Weightless

__________2. Has taste

__________3. Has mass

__________4. Can be touched

__________5. Has no shape

INTRODUCTION

Classifying Matter



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Look at the picture above, which of the things occupy space?

Which of them have its own shape?

Which of them occupies space?

Elaboration

All matter occupies space. They all have mass which means they all have weight too.

Solids have their own shape. They have fixed or definite shapes. It can also be seen and touched.

Liquid and gas takes the shape of their container. They dont have their own shape.

Liquid flows.

Gas spreads out in space. It has no color, odor and shape.

Exploration

Can you tell whats that Matter?

What you need

Pen and paper


(Pictures of samples of solid, liquids and gas)


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What to do

1. Move and roam around the room or in the field. Write down all the matter that you can observe

around.

2. Classify them according to Solid, Liquids or Gas.

Chapter 5: Forms of Energy

Sources of Heat and Light


(Pictures of sample of liquids in different containers each are labeled)

A. Soft drinks E. A bottle of Honey

B. A glass of water F. Alcohol

C. Soy sauce

D. Cup of coffee

( Picture of Alon and Luna during camping and cooking marshmallow on the bonfire)

Alon: Luna look, my marshmallow melted!

Luna: because kuya Alon, tatay made that bon fire for light and not for you to cook

marshmallow. Did you not notice its big?


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Why did Alon and Lunas father light a fire for light?

How was Alon able to cook using the fire?

What are the other sources of heat and light?

Exploration


( Picture of a living room and kitchen with stove, light bulb, candle, lamps, electric fan,

tv)


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1. Look at the things around you

2. List down 5 things that give you light

3. Now try listing things that gives off heat.

4. Make a list and check what it gives you.

Things It gives me light It gives me heat It gives me light and heat

Explanation


Picture of Alon and Lunas family having a picnic while the sun is shining


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Lightlet us see all the wonderful things around us. Without light, the whole world will be

dark. We also need heatto cook food, dry up thing and give us warmth. We can get light and heat

in many ways.

The Sun

Our planets main source of light and heat is the sun. during the day, we receive light from

the sun even if it is very far from us.

Electricity


Picture of a clothesline with clothes under the sun

Picture of Alon and Luna reading a book using a lamp post

Luna: Kuya, can we just turn on the florescent lamp so we can save

electricity.

Alon: Yes! Using two separate night lamps is not that energy friendly.


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At night, the sun is giving of light and heat in other parts of the world so we use electricity

in order to have light. Electricity makes the television, radio and other appliances work. You may

not see electricity but you can definitely feel it. If you want to see the actual electricity, try to look

at a picture of a lightning.

Lightning is electricity in the air. It happens in between clouds and usually strike tall

objects like building and trees. Lightning is very dangerous, when there is a lightning storm

happening remain inside of your home away from the windows. Dont use electrical appliance too.

Burning Fuel


Picture of a lightning storm

( picture of Alon and Lunas family having a barbeque)


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Before electricity was discovered, people use fuels for light and heat. We can use fossil

fuels to run our cars and machines. Fossil fuels come from living things that lived millions of years

ago. We can also use logs to build fire.

Lights

Not all lights are always there for us. There are objects that have their own light and other

sources that has to borrow from something in order to give us light.

A very good example is the sun. The sun has its own light to give us. We call these things

luminous.Luminous objects are objects that have their own light. Other examples of luminous

things are fireflies and stars. They can store and give off light and heat. The best example of a

Non- luminous object is the moon. It gives us light at night but it doesnt have its own light. It gets

it light from the sun. The suns light would bounce on the moon that is why we can see it. Other

examples of non- luminous objects are stone, paper and other things that has no light.

Elaboration


Picture of the sun and the moon

( picture of a science lab)


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Color all the sources of light and heat in this picture. Use the color red.

Evaluation

I. Draw a fire if the picture shows a burning fuel, a sun if the light and heat

come from the sun and a lightning bolt if the energy comes from electricity.

_________1. Picture of child writing using a candle.

_________2. Picture of children playing with a flashlight

_________3. Picture of a mother cooking food using a stove

_________4. Picture of a child playing under the sun

_________5. Picture of a kids playing scrabble using a florescent lamp.

II. Tell whether the object is a luminous or a non luminous object.

________1. Firefly ________2. Moon

________3. Sun _________4. Candle

________5. flashlight

Lesson 2

How light Travels


( Luna and Alon are playing shadows. Alon is making his shadows near

the flashlight and Luna is playing a little farther from the source of light )

Luna: Kuya, why is your shadow bigger than mine? We are using the

same flashlight.

Alon: Maybe because I am older than you.. hahaha even our shadows

know that!


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Why can Alon and Luna make shadows?

Is Alons answer to Lunas question right? Why?

What happens to light when a shadow appears?

Elaboaration


Picture on how the boxes should be arranged


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What you need

3 index cards

small piece of modeling clay or sticky tack

flashlight

hole puncher

Procedure

1. For each index card, punch a hole at the center with different sizes

2. For each card, use a small piece of modeling clay and place the card into the clay to create

a "stand" for the card. Place the cards so that they stand vertically and at an equal distance

from each other.

3. Place the flashlight at one end of the row of index cards and turn off the light in the room.

4. Arrange the index cards so that light can be seen through all the holes.

5. Observe and answer the following questions

1. How can light be seen through all the index cards?

2. What does the experiment prove about the path light travels?

3. What would happen if the holes were smaller?

Explanation

Light and Shadow


( Picture of Alon and Luna walking under the sun with an umbrella)


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Light travels in a straight path. If you block the light a shadow will be formed. The

shadow will always be at the opposite of the source of light.

Morning

Picture of Luna with shadow

during the day

Afternoon Night

The nearer you are from the source of light, the bigger the shadow you will be able

to make.

The only way we can see an object is that if a light will reach it.This is why wecant see things in the dark. The objects are still there but there is no light to reveal them.

Light can pass through transparentobjects like glass and no shadow will be seen

here.


Picture of window, water glass and a table with a clear glass


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In a translucentobject like jalousies not all the light can pass so the object will not

be that clear and a very faint shadow will be seen.

No light can through opaque objects like wood and a dark shadow will be formed.

Elaboration

CLT:

In your group, collect 5 objects in from your bag and check out if its opaque,

translucent or transparent by looking at the shadow it has formed.


Picture of jalousey and a plastic bag

Picture of rocks, wood and paper


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Evaluation

I. Check if the statement is true

_______1. Light travels in a straight path

_______2. Nothing can block a light

_______3. Shadows are formed when light is blocked.

_______4. Light can pass through a transparent object

______5. No shadow will be formed in an opaque object

II. Draw the shadow of the little girl. Look at the source of light.

Lesson 3: Sound


Object Shadow Opaque, translucent or transparent

Light from the left Light from above Light from the right

( Picture of Alon and Luna playing guess the sound)

Mother: Kids, can you please dont shout , your dad wants to rest.

Alon: But mom, how will I make an ambulance sound if it will be soft/

Luna: kuya why not try making sounds that are soft like the sound of the wind.


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What are sounds?

How are sounds formed?

What are soft sounds and soft sounds?

Elaboration

Try to say this while touching you throat: Jack be nimble, Jack be quick, Jack jump over

the Candle stick What did you feel?

Now do the same thing but this time, read it while whispering. What is the difference?

Explanation


Picture of kids touching their throat.

( picture a busy road )


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Sound is produced trough vibration. When we talk, you can feel that our throat is shaking.

The leaves move when the wind is blowing on them that is why we are able to hear the sound.

The loudness and the softness of sound are called volume. Screams and fire crackers have a

high volume while rustling of leaves and your whisper have low volume.

Elaboration

List down all the things you can see in school. Group them according to the volume they

make. Compare your answers to your partner.

High Volume Low Volume

Evaluation!

Rank the following sounds. Write 1 for the loudest and 10 for the softest

_____________Fire crackers

_____________School bell

_____________ Teachers voice

_____________ Crying puppy



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_____________Fallen book

____________ Electric fan

____________ Ringing phone

____________ Screaming classmates

____________ closing of your bag zipper

___________ Television

Lesson 4: Electricity, Magnetism and Motion


( Picture of Alon and Luna in the kitchen)

Luna: Mom, why is the refrigerators door closes by itself?

Mom: Because something is pulling it, Alon, can you please stop playing here in the

kitchen ( toy car, battery operated)

Alon: But mom,I need more space to move faster.


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What makes

the

refrigerators

door close?

How can Alons toy car move with Alon far from it?

What makes other things move?

Elaboration

Steps

1. Observe Hold an end of one magnet near an end of the other magnet. Observe what happens.

2. Record Data Record your observations in the chart below.


Testing Magnets

Position of Magnet What Happened


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3. Turn one magnet around. Hold it near the other magnet. Record your observations in your chart.

Explanation

There are forces that make things move. Push and pull areforces. Other forces are

magnets, electricity, water, wind and gravity.

Magnet

Try this

1. Test each object with a magnet.


Objects Pulled Did Not Pull

Safety pin

Paper clip

Paper

Nail

Scissors

Piece of tissue

Pencil

Kids in the play ground

Playing kite, paper banca, remote control car.


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2.

3. What are the things that the magnet did not pull?

4. What are the things that were pulled by magnet? What materials are they made of?

Magnets are made up of two poles, the north and the South Pole. Magnets generally attract

things made up of metal. Magnets also cover the door of our refrigerator that is why it closes by

itself. Different poles attract and like poles repel.

Electricity

When you a still a child, how many of your toys move by themselves? What is inside the

toy that makes it move? Toys that move have batteries inside, which provide electricity that makes

them move. The small amount of electricity in the battery makes the motor inside the toy run.

Electrical force can make some household tools and appliances move. How is electricity stored in a

battery? A battery has components inside that stores electricity. These components are made up of

earths elements such as carbon, lead and ionized water. Batteries containing lead are harmful to

living things.

Gravity


( picture of Luna reading a book in front of an electric fan and Alonplaying a toy.)


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What is easier, you going up the stairs or you going down?

Going down is easier because you havegravity to help you out. This is like the earths

magnet. Everything that goes up will be pulled down by gravity. So when you go up, you are going

against that pull so you will feel more tired and breathless.

Other forces that helps object moves are

Water

Air

Exploration

Tell what force makes the object move

1. Picture of a sky diver


Picture of Luna and Alon playing toss ball.

Alon: Luna, why cant our ball stay up there?

Luna: Hmm.. I am also wondering the same thing kuya.

Picture of Alon playing by the river

Alon: Wow my paper banca is fast

Friend: Thats because the water current is really fast

Picture of Luna racing to reach her handkerchief

Luna: Ow The wind blows so strong

Friend: we must hurry so you can still get it.


45/45


2. Picture of a sail boat

3. Picture of a motor engine

4. Picture of a windmill

5. Picture of a falling book

Evaluation

True or false

1. Gravity pulls everything down

2. Wind never makes anything move

3. A battery is an example of electricity

4. Water current moves big ships

5. Without gravity, everything would be up there

cessa tx science2 unit3 orig

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