ms. longo earth science weather & water. 9/14 agenda vocabulary air experiment

Ms. LongoEarth ScienceWeather & Water

9/14

Agenda

Vocabulary

Air Experiment

Back to School night

10 pts. Extra credit if your parent/guardian comes to this class

They will follow your school schedule. Please give them a copy.

Do Now

Notebook maintenance

Check and discuss your answers from NB sheet 2 (Air Investigation)

Each group will share one question

Vocabulary

Every object and substance in the world is made of matter. The 3 states of matter are solid, liquid, and gas. The amount of matter in an object is its mass.

Mass is the measurement of the amount of matter in an object or a substance such as air. Mass is measured in grams.

VocabularyOne way to confirm that something has mass is to weigh it. Weight is pull or force between Earth and the matter in an object or substance. Weight depends on gravity, so weight can vary slightly at different places on Earth and can vary greatly on different planets. In outer space, away from planets, objects become weightless, but their mass does not change.

Discussion Questions

Does air has mass?

Is there any matter in a volume of air?

Air Experiment

Materials:

2 L plastic bottle

Pump

Electronic balance

Air Experiment

Using these materials what how would we conduct an experiment to find out if air has mass?

Discuss with your group

Air Experiment

Measure mass of bottle and pump

Record data

Pump bottle full of airRecord data

Air Experiment

Analyze the results:

Pumping air into the bottle forces more air in, so the air in the bottle is compressed.

Compression pushes the particles closer together. There is more air (more air particles) in the volume inside the bottle now than there was in the unpumped bottle.

Results continued

A bottle of compressed air weighs more than a bottle of uncompressed air because it has more particles in the bottle.

More weight = more mass. Therefore air has mass, so air is matter.

Record your findings

Summarize the finding of the experiment in your NB.

Your answer might look something like this:

We showed that air has mass, because when we __________ , we collected evidence that _________ .

9/15

Agenda

Review and record findings from Air Experiment

Big Ideas

Vocabulary

FQ

Record your findings

Summarize the finding of the experiment in your NB.

Your answer might look something like this:

We showed that air has mass, because when we __________ , we collected evidence that _________ .

Big Ideas

Label a new page Big Ideas

Save 2 pagesBookmark the page

Copy the next points onto this page

Big Ideas

Air has mass and takes up space.

Air is made of many tiny particles, which are constantly in motion with a lot of space between them.

Air can compress and expand.

VocabularyDefine these words in your

own words:

Air

Compress

Expand

Mass

Matter

Particle

Pressure

State

Weight

Revisit Focus Question 2.1

What is Air?Draw a line of learning, today’s date

Add new ideas

Discuss your answer with your table group

Add any new ideas to your page

Weather & Water Book

Look at the cover, table of contents, glossary and index.

Turn to “A Thin Blue Veil” p. 23

Look at the images

Weather & Water Book

Turn to page 23 “A thin Blue Veil”

Look at the imagesThe upper image is a photo taken by space-shuttle astronauts. The shuttle was orbiting in Earth’s atmosphere at the time and shows only a small portion of Earth.

Weather & Water Book

Turn to page 23 “A thin Blue Veil”

Look at the imagesThe lower image is a photo of Earth taken by Apollo 17 Astronauts in 1972. The astronauts were on the way to the moon at the time.

Prepare to answer these questions based on the

imagesWhere is the atmosphere?

Can you see the atmosphere in the image of Earth taken from space?

Can you see the atmosphere in the image of Earth taken from the shuttle?

What structures can you see in the atmosphere?

Why can’t you see the atmosphere in the image taken from space?

FQ 2.2

What is the atmosphere?

Please write your first answer.

9/16

Agenda

Vocabulary

FQ 2.1 Revisit

Big Ideas

FQ 2.2

Do Now

Notebook Maintenance

Continue with vocabulary definitions

9/17

Agenda

Atmosphere Introduction

TextbookPosters

Reading

Do Now

Notebook Maintenance

Continue with vocabulary definitions

Yesterday’s weather

Atmosphere

The Earth is surrounded by a layer of air. The layer of air is called Earth’s atmosphere. The atmosphere lies between Earth‘s surface (solid and liquid) and the vastness of space. We terrestrial animals live most of our lives at the bottom of the atmosphere, surrounded by the invisible mixture of gases called air.

Earth’s Atmosphere Posters

Look at the small version of the posters in the “A Thin Blue Veil” reading p. 24-5

Look at the vocabulary, and how the atmosphere is organized.

Earth’s AtmosphereThe atmosphere has different layers that have different properties at different elevations.

The lowest layer of the atmosphere is called the troposphere. Most of Earth’s air is found here, and Earth's weather happens in the troposphere.

The layer above the troposphere is the stratosphere. You may have heard of the ozone layer. The ozone layer is found in the stratosphere.

Earth’s AtmosphereThe mesosphere is above the stratosphere. This is the layer in which meteoroids entering Earth’s atmosphere become meteors- the streaks of light that are sometimes called “shooting stars.”

The thermosphere is next. Scientist don’t know very much about the thermosphere except that it has high temperature, but very little air.

Earth’s Atmosphere

The layer farthest away from Earth’s surface is the exosphere. It is a relatively thick layer, but it contains very little air. It is the transition layer between Earth’s atmosphere and outer space.

Earth’s Atmosphere

Look at the picture on the right of

p. 25

The layer of the atmosphere that extends from Earth's surface up to about 10-24 km is the troposphere.

The average is 15 km

Earth’s Atmosphere

The troposphere represents only about 2% of the height of the atmosphere, but about 85% of Earth’s air is found here. This is the most complex part of the atmosphere, and a lot of activity takes place here.

Objects in the Atmosphere

Scientists send several kinds of devices into the atmosphere to study it. People and other living organisms can be found at different levels in the atmosphere. The poster shows the elevations in the atmosphere where some of these objects and organisms can be found.

Objects in the Atmosphere

Space shuttle (now retired)

Peak of Mount Everest

International Space Station

Jetliner (airplanes)

Meteors

Weather balloons

Storm clouds

Notebook sheet 3

Some of these questions have been studied by atmospheric scientists. We may be able to find answers to some of these questions by doing a little research. We have two sources of information to look into: the online activity and an article about the atmosphere.

Reading

P. 20

“What’s in the Air?”

9/18

Agenda

Atmosphere Composition chart

Earth’s Atmosphere Questions

Online Activity

Vocabulary

Focus question revisit

Notebook review for test

Do Now

Notebook Maintenance

Open NB to weather report pages

Atmosphere CompositionDraw this chart in your NB. Add one

important fact about nitrogen and one important fact about oxygen next to the

chart

Earth’s Atmosphere Questions

Answer questions 1-6

Pass to the edge of your table when everyone is done.Reading p. 20 Posters p. 24-25

Elevator to Space

Copy the data table

Elevator to Spacekm Altitude Temperature Density of Atmosphere Mass of Atmosphere (%) Gasses

0.0

.4

.9

2.3

5.3

8.9

11.0

20.0

39.8

85.0

371.0