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Science LEAP Practice

Name: Date:

1. Your teacher has brought a sample of water toclass. The sample contains a mixture of smallrocks, sand, and silt (very fine soil) from theMississippi River. After a few hours, the samplesettles. Which diagram shows how the sample willsettle?

A.

B.

C.

D.

2. In which example is matter changing state?

A. heating a pan of water until the water is allgone

B. putting a soft drink can in the refrigerator tocool it

C. heating soup on the stove until it is hot toyour tongue

D. transferring sugar into a storage container

3. Which graph could represent a child’s growth fromkindergarten through the fourth grade?

A.

B.

C.

D.

page 1

4. Carmine’s mother drinks four cans of soft drinkeach day. To protect the environment, what shouldCarmine’s mother do with the empty cans?

A. throw the cans in the trash

B. send the cans to a landfill

C. take the cans to be recycled

D. crush the cans before putting them in thetrash

5. MATERIALS REQUIRED:

You will need a perforated sheet with picturesof beans, brown wrapping paper, cardboard, adrinking straw, a metal paper clip, a metal washer,newspaper, a plastic cup, a tissue, and a toothpick.

DIRECTIONS:

For this task, you will work with what could be ina trash bag. You have been given a piece of paperwith pictures of twelve items. These picturesrepresent a sample of household garbage. Separateall the pictures, and sort them into four groupsbased on the materials from which they are made.

Name each of your four groups, and list theobjects that fit in each group.

Name of Group: Objects:




6. Which drawing would represent the flagpole’sshadow at 5:00 P.M.?

A.

B.

C.

D.

7. On a field trip in a wooded area, you see a small,strange object. You wonder whether it is a liveanimal. The best way to find out is to observe theobject to see if it

A. has an odor.

B. has separate parts.

C. can make a noise and has a lifelike color.

D. carries out basic life functions.

page 2 Science LEAP Practice

8. Jeannie put her soccer ball on the ground on theside of a hill. Which force acted on the soccerball to make it roll down the hill?

A. gravity B. electricity

C. friction D. magnetism

9. Which thing is nonliving?

A. a mushroom B. a tree

C. a worm D. a river


TASK DESCRIPTION

Mammals have teeth that are specially adapted to allow them to eat specific types of foods. For this task, you willinvestigate different tooth adaptations shown by carnivores and herbivores. You will be given a chart showing how theincisors, canines, and molars are specially adapted to each food source. Then you will use this information to identifyseveral skulls as either herbivore or carnivore skulls. After the investigation, you will answer questions about the task.

MATERIALS

You will need the “Tooth Chart” and the “Skulls of Unknown Animals” sheet showing pictures of different animal skulls.

DIRECTIONS

In this task, you will investigate how the teeth of different mammals are adapted to the types of food they eat. You willuse the “Tooth Chart” to identify the skulls on the punch-out cards. Before you begin, carefully punch out the picturesof the skulls from the “Skulls of Unknown Animals” sheet, and lay them out on your desk.

Tooth Chart

ToothType

Incisors

Canines

Molars &Premolars


10. Look at the cards with the pictures of the animalskulls. Use the “Tooth Chart” to decide if theanimal on each card is a carnivore or a herbivore.

a) Sort the cards into two piles: carnivores andherbivores. Then write the numbers from thecards in the correct circles below. CarnivoresHerbivores

b) Explain one characteristic you used to groupthe animal skulls.

11. a) Using the “Tooth Chart,” explain how theshape of their teeth helps herbivores to eatplants.

b) Using the “Tooth Chart,” explain how theshape of their teeth helps carnivores to eatmeat.


Task Description

Mammals have teeth that are specifically adapted to allow them to eat specific types of foods. For this task, you willinvestigate different tooth adaptations shown by carnivores and herbivores. You will be given a chart showing how theincisors, canines, and molars are specially adapted to each food source. Then you will use this information to identifyseveral skulls as either herbivore or carnivore skulls. After the investigation, you will answer questions about the task.

MATERIALS

You will need the Tooth Chart and the Skulls of Unknown Animals sheet showing pictures of different animal skulls.

DIRECTIONS

In this task, you will investigate how the teeth of different mammals are adapted to the types of food they eat. You willuse the Tooth Chart to identify the skulls on the pictures. Before you begin, use your scissors to carefully cut apart therectangular pictures of the skulls from the Skulls of Unknown Animals sheet and lay them out on your desk.


12.

The skull in the picture is of an animal that eatsboth meat and plants. Tell how the teeth of thisanimal help it eat both meat and plants.

13.

Explain how each of the four living things inthe picture is linked in a food web. Be sure todescribe the role of each of the living things.

14. If each horse is pulling with the same force, inwhich direction will the rock move?

A. north B. east C. south D. west

15. When you are getting up to go to school inLouisiana, a student on the other side of Earth isgetting ready for bed. What is the reason for this?

A. Earth revolves around the Sun.

B. Earth rotates on its axis.

C. The Sun rotates on its axis.

D. The Moon revolves around Earth.

16. Mrs. Henderson’s class has five small, coveredboxes. One contains perfume; another containsdried onions. There is also a box of pine needles,a box of lemon pieces, and a box with a papertowel wet with vanilla flavoring. Which shouldthey do to get the best information about what isin each box?

A. Shake the boxes.

B. Smell the boxes.

C. Listen to the boxes.

D. Weigh the boxes.


17. Use the picture below to answer the followingquestion(s).

What does the heart do for the body?

A. It takes oxygen in from the environment.

B. It turns food into energy.

C. It removes waste from the blood.

D. It moves blood through the body.

18. Use the pictures below to answer the followingquestion(s).

Bat Bird

Some people think that bats and birds are alike.Other people say they are very different. Look atthe two pictures.

a) Tell one way bats and birds are the same.

b) Tell one way bats and birds are different.

19. Use the graph below to answer the followingquestion(s).

The graph above shows the owl population in alarge forested area over a 20-year period. Thegraph also shows the acres of forest that werecleared for lumber over the same time period.

a) Why did the owl population change?

b) What could have been done to prevent thechange in the owl population?

20. Use the picture below to answer the followingquestion.

The spoon appears to be broken where it entersthe water because

A. the light is reflected by the water.

B. the light is absorbed by the water.

C. the light is bent by the water.

D. the light is dissolved by the water.


21. Use the information and chart below to answer thefollowing question.

The students at Hoover Elementary School did asurvey of the eye colors of all the fourth gradersat their school. The results are shown in the datachart below.

Hoover Elementary SchoolFourth-Grade Eye Colors

Blue Brown Green

Ms. Musso’s class 9 7 1

Mr. Broussard’s class 2 10 4

What does the chart show about HooverElementary School?

A. Brown is the most common eye color in eachfourth-grade class.

B. Green is the least common eye color in bothfourth-grade classes.

C. Brown is the most common eye color in thefourth grade.

D. Blue eyes are more common in boys than ingirls in the fourth grade.


Which of these lists only living parts of thisecosystem?

A. fox, tree, grass B. sun, stream, cloud

C. cloud, grass, rock D. stream, cloud, fox

23. A rock sample will most likely contain

A. plants. B. minerals.

C. water. D. wood.

24. a) Draw one flowering plant you would findnear your school. Label one part of thatplant.

b) What is the function of the part you labeledin your drawing?

25. Use the picture below of Sharon pulling a wagonon a level sidewalk to answer the followingquestion.

a) How would the movement of the wagon beaffected if she pulled harder on the wagon?

b) How would the movement of the wagon beaffected if her little brother were sitting inthe wagon?

26. Which type of force requires contact between twoobjects for one to push or pull the other?

A. frictional forces slowing down a rolling soccerball

B. the magnetic force pulling paper clips to apowerful electromagnet

C. the magnetic force pushing two magnets apart

D. the force of gravity acting on raindrops thatfall to Earth


27. Which group of living things shares the mostcharacteristics?

A.

B.

C.

D.

28. Which object in the sky is a satellite of the planetEarth?

A. Sun B. Moon

C. Mars D. Saturn

29. What is one way people are helping theenvironment?

A. They are planting trees to replace the onesthat are cut.

B. They are building more roads so more peoplecan see natural areas.

C. They are building more dumps to hold thetrash we create.

D. They are using their cars more to get toplaces faster.


30. Pond Community Data Sheet

Name ofOrganism

Illustration Antennae Numberof Legs

What They Eat Color

Waterplants

no 0 nothing—theymake theirown food

green

Dragonfly yes 6 snails brown

Bass no 0 bluegill fish gray-green

Snail yes 0 water plants gray

Water bug yes 6 snails black

Bluegill fish no 0 dragonflies blue-green

Construct a bar graph showing the number of legs on the bass, dragonfly, and water bug.


31. List the organisms from your Data Sheet that haveantennae.

32. Give two reasons why the dragonfly and water bugare similar.

33. Here is a food chain for a pond.

What would happen to the largemouth bass if allthe algae were removed from the pond? Describewhat would happen to all four parts of this foodchain.

34. Why do the Sun and Moon appear to move acrossthe sky?

A. The rotation of the solar system makes theSun and Moon seem to move.

B. The rotation of Earth makes the Sun andMoon seem to move.

C. The Sun and Moon revolve around Earth.

D. Earth revolves around the Sun and the Moon.

35. A wetland was drained to build a mall. Two yearslater, there were no more toads in that area. Whydid the toads disappear?

A. The toads were destroyed by the constructionequipment.

B. The toads died because toads cannot breatheout of water.

C. The toads were frightened and went into thewoods.

D. The toads got their food from the wetlandecosystem.

36. Use the pictures below to answer the followingquestion.

Mark is using these materials to compare howwater flows through three different soils. Whichsafety rules should he follow while doing theexperiment?

A. fire safety rules

B. glassware safety rules

C. electrical safety rules

D. plant safety rules


What could you add to this to make it a morebalanced meal?

A. a glass of milk B. a banana

C. a pork chop D. a muffin


Swing Set Science

Jenna and Paul like to swing. There are several swings on the playground. Jenna and Paul are interested in how swingswork. They ask their teacher for help.

First, their teacher hangs the swings at different distances from the top of the swing set and measures the length of thechains on each swing. Then Jenna and Paul pull each swing back, let it go, and measure the time for the swing to goforward and back again. They call this “Time for One Complete Movement.” Look at chart 1 on your handout to seewhat they learn about swing length and time for one complete movement.

Table 1Observations of Swing Lengths

Swing Length of theSwing’s Chain

(meters)

Time for OneCompleteMovement(seconds)

1 2 3

2 4 4

3 6 5

4 9 6


38. List or describe two tools used in Jenna and Paul’sexperiment other than the swing.

39. Complete the bar graph below to show how thelength of a swing’s chains affects the time it takesfor one complete movement.

40. Paul has a swing that makes one completemovement in 7 seconds.

a) Use chart 1 to predict the length of the chainon Paul’s swing.

b) Explain how you got your answer.

41. a) Tell two ways to start a swing moving backand forth.

b) Tell what can be done to make a swing gohigher.

c) Tell what makes a swing come back down.

42. Use the map below to answer the followingquestion.

Springfield, Missouri, and San Francisco,California, are at similar latitudes, but they havevery different climates. Springfield has very hotsummers and cold winters, while San Franciscohas about the same temperatures all year. Whatis the most likely reason the two cities have suchdifferent climates?

A. the amount of sunlight on each city

B. the distance of each city from an ocean

C. the elevation above sea level of each city

D. the distance of each city from the equator

43. What is an energy change that takes place in alightbulb?

A. Chemical energy changes to light energy.

B. Chemical energy changes to heat energy.

C. Electrical energy changes to light energy.

D. Electrical energy changes to chemical energy.

44. Della has a mixture of soil and water in a jar.Which of the following tools would best helpDella separate the soil from the water?

A. a filter B. a measuring cup

C. a balance D. a magnifying glass


45. Use the list below to answer the followingquestion.

insects

flowers

birds

Which of these items below belongs best with thelist of items in the box?

A. oil B. rocks

C. grass D. glaciers

46. Use the sign and the information below toanswer the following question.

The sign pictured above can be seen on manymaterials such as glass, plastic, paper, and metals.The sign means that these materials can berecycled.

a) What is recycling?

b) Why is it important to recycle materials?

47. A. Using the picture of Earth and the Sun below,mark a spot on Earth where it is day with a“D.” Then mark a spot on Earth where it isnight with an “N.”

B. Louisiana goes through a period of day andnight every 24 hours. Explain what causes dayand night.

48. When Jake breathes out on a cold day, a cloud isformed. Which change occurs that lets Jake seehis breath as a cloud?

A. Gas changes to liquid.

B. Solid changes to gas.

C. Liquid changes to gas.

D. Liquid changes to solid.

49. Use the table below to answer the followingquestion.

Growth of Students in Mary’s4th-Grade Class

Student Name Height (cm)in September

Height (cm)in June

Anna 132 132

Calvin 132 139

Denise 135 136

Frank 157 162

Marion 139 143

Rachel 144 150

Which student in Mary’s class grew the mostduring the school year?

A. Anna B. Calvin

C. Frank D. Rachel



Sarah put 10 marigold seeds in a pot of sand and10 marigold seeds in a pot of soil. She then putboth pots near a window and watered them withthe same amount of water every few days. Afterthree weeks, Sarah measured the height of themarigold seedlings in each pot. What was Sarahprobably testing?

A. how light affects the growth of marigolds

B. which type of marigold grows best

C. whether marigolds grow better in soil or insand

D. how water affects the growth of marigolds


In which position does the rider use the leastamount of force?

A. position 1 B. position 2

C. position 3 D. position 4

52. Sara Jo put some sugar and water in a shallowdish and stirred it until the sugar disappeared.She left the dish of sugar and water solution ona shelf. After several days, she noticed that thedish had sugar crystals on the sides and a smallamount of water in the middle.

Explain why the sugar crystals appeared.

53. Use the list below to answer the followingquestion.

plants fox rabbit

In the space below, make a food chain using theorganisms shown above. Draw arrows to connecteach organism with its food or source of energy.

54. Choose the investigation that would best answerthe question: Does the length of a string changehow fast a pendulum swings?

A. Tie identical weights to two strings ofdifferent lengths.

B. Tie two different weights to a string.

C. Tie identical weights to a long string.

D. Tie two different weights to two identicalstrings.


55. Anne and her father find a 30-million-year-oldtropical plant fossil in Louisiana. Which questiondoes the fossil help them answer?

A. Were there mountains in Louisiana 30 millionyears ago?

B. What was the climate like in Louisiana30 million years ago?

C. Were there earthquakes in Louisiana30 million years ago?

D. What kind of animals lived in Louisiana30 million years ago?

56. How does too much fishing in an area affect itsecosystem?

A. The fish will lay many more eggs to replacethe fish that were caught.

B. Organisms that eat the fish could becomeendangered due to starvation.

C. Organisms that the fish eat will becomeendangered.

D. People could eat too many fish and becomeill.

57. Which of these animals does not have a backbone?

A.

B.

C.

D.

58. These are pictures of how the Moon appears atdifferent times.

a) How long does it take for all the phasesshown above to take place?

b) Explain why the Moon looks different atdifferent times.

59. Use the picture below to answer the followingquestion(s).

a) How does the form of energy change whenenergy moves from the battery through thewire to the lightbulb?

b) What two forms of energy are produced bythe lightbulb?

60. Sophie investigates the water supply at her schooland the things that affect it. Which action is adirect observation?

A. tasting water from a water fountain

B. reading water test results

C. studying the rules for purifying water

D. investigating causes of water pollution


61. Use the data table below to answer the followingquestion.

Observations ofUnknown Object

is shiny

conducts electricity

is not magnetic

According to the evidence in the data table, whichmaterial most likely makes up this object?

A. iron B. polished wood

C. copper D. plastic wrap


What happens in stage 2 of a butterfly’s life cycle?

A. It hatches into a larva.

B. It changes its body shape.

C. It mates with other butterflies.

D. It eats and grows.

63. Mrs. Tucker gives her class samples of differentsoil types. Which action best helps Tanishaidentify each soil type?

A. smelling it B. touching it

C. weighing it D. measuring it

64. Use the information below to answer thefollowing question.

Beavers are natural builders. Theybuild their homes from treebranches and often lay branchesacross a stream to build a dam.They use mud to seal any openspaces. To keep out other animals,the doors to their homes areunderwater. There may be severalrooms inside their homes. Oneroom may be used for storing foodfor winter, such as plants and treebark.

Explain how a beaver’s environment meets two ofits basic needs.

65. On a field in a wooded area, you see a small,strange object. You wonder whether it is a liveanimal. The best way to find out is to observe theobject to see if it

A. has an odor.

B. has separate parts.

C. can make a noise and has a lifelike color.

D. carries out basic life functions.

66. Insects change as they grow. Look at the picturesbelow. One part of the picture is missing. Drawand label the missing part of the picture.

67. Many things are made of metal, such as pots,pans, tools, and wire. Give two reasons whymetals are used to make many different things.


Task Description

Mammals have teeth that are specifically adapted to allow them to eat specific types of foods. For this task, you willinvestigate different tooth adaptations shown by carnivores and herbivores. You will be given a chart showing how theincisors, canines, and molars are specially adapted to each food source. Then you will use this information to identifyseveral skulls as either herbivore or carnivore skulls. After the investigation, you will answer questions about the task.

MATERIALS

You will need the Tooth Chart and the Skulls of Unknown Animals sheet showing pictures of different animal skulls.

DIRECTIONS

In this task, you will investigate how the teeth of different mammals are adapted to the types of food they eat. You willuse the Tooth Chart to identify the skulls on the pictures. Before you begin, use your scissors to carefully cut apart therectangular pictures of the skulls from the Skulls of Unknown Animals sheet and lay them out on your desk.


68. After you have cut apart the rectangular picturesof the animal skulls, use the Tooth Chart to decidewhether the animal in each picture is a carnivoreor a herbivore.

a) Sort the pictures into two piles: carnivoresand herbivores. Then write the numbersfrom the pictures in the correct circles below.

b) Explain one characteristic you used to groupthe animal skulls.

69. a) Using the Tooth Chart, explain how the shapeof their teeth helps herbivores eat plants.

b) Using the Tooth Chart, explain how the shapeof their teeth helps carnivores eat meat.

70. At what time on a sunny day will the shadow ofthe school’s flagpole be the shortest?

A. sunrise B. noon

C. mid-afternoon D. sunset

71. In which of the drawings below will the bulblight?

A.

B.

C.

D.

72. Joann is testing soils to see which kind is best forgrowing marigolds. Which of the following shouldshe do?

A. Plant the marigolds in the same soil, butwater some plants more than others.

B. Plant the marigolds in one kind of soil,radishes in another, and daisies in a thirdkind.

C. Plant the marigolds in three kinds of soil, andgive them different amounts of sun.

D. Plant the marigolds in three kinds of soil, andgive them the same amounts of water andsun.



Which animal belongs in the same category as thelizard?

A.

B.

C.

D.

74. a) Look at the picture below.

What causes a solar eclipse?

b) Look at the picture below.

What causes a lunar eclipse?

75. The school playground is littered with paper andtrash. Tell two ways to keep this from happeningagain.


Problem-Attic format version 4.4.218c_ 2011–2014 EducAide Software

Licensed for use by mikki aucoinTerms of Use at www.problem-attic.com

Science LEAP Practice 02/13/2015

1.Answer: C

2.Answer: A

3.Answer: D

4.Answer: C

5.Answer:

6.Answer: D

7.Answer: D

8.Answer: A

9.Answer: D

10.Answer: Carnivores: 2, 3, 6. Herbivores: 1, 4, 5.

Tooth shape, type, or length.

11.Answer: Molars grind plants / incisors help tear

plants from ground. Sharp incisors /canines help tear or stab meat / Sharpmolars help them slice meat.

12.Answer:

13.Answer:

14.Answer: C

15.Answer: B

16.Answer: B

17.Answer: D

18.Answer: Both have wings, both fly, eat insects

for food, are living things. Birds havefeathers (bats do not), bats use sound fornavigation, bats are mammals.

19.Answer: loss of habitat. Preserved some forested

land for the owls, plant new trees asreplacement, run a conservation campaign,put up signs, have a rally, write laws.

20.Answer: C

21.Answer: C

22.Answer: A

23.Answer: B

24.Answer: Student draws a plant and correctly labels

one part of the plant (may include root,stem, leaf, or flower) and correctly statesthe function of the labeled part. Responsecontains no errors.

25.Answer: The student answers part a and part b

without any errors.

26.Answer: A

27.Answer: A

28.Answer: B

29.Answer: A

30.Answer:

31.Answer: Dragonfly, snail, and water bug.

32.Answer: both live in the water, both have antennae,

both have six legs, both eat snails

Teacher’s Key Page 2

33.Answer: The bass will all die. If there are no

algae for the insect to eat, the insect willdie. If there are no insects, the bluegillswill die. If all the bluegills die, the basswill starve.

34.Answer: B

35.Answer: D

36.Answer: B

37.Answer: A

38.Answer: Two of the following: pencil, meterstick

, tape measure, ladder, stopwatch,charts/tables

39.Answer:

40.Answer: 11 or 12 meters

41.Answer: A push or a pull, pump with legs/feet,

kick with legs; harder push, pull, kick,etc. OR applying two different forcessimultaneously; gravity

42.Answer: B

43.Answer: C

44.Answer: A

45.Answer: C

46.Answer: Part A (one of the following):

• Recycling is reusing materials.

• Recycling makes things out ofmaterials that were already used.

;

Part B (one of the following):• It is important we do not run out of

these materials.

• It is important because some materialsor resources are limited and can’t bereplaced.

• It saves natural resources.

• Too many landfills will leave us withlittle space.

• Pollution can lead to chemicals leakinginto the water table (from batteries,etc.)

• Save the environment/habitat

• Balancing the ecosystem

47.Answer: ; Earth spins on its

axis/Earth rotates.

48.Answer: A

49.Answer: B

50.Answer: C

51.Answer: D

52.Answer: The water evaporated, leaving the sugar

crystals in the dish.

53.Answer: plants → rabbit → fox

54.Answer: A

55.Answer: B

Teacher’s Key Page 3

56.Answer: B

57.Answer: D

58.Answer: 1 month; The changing position of the

moon in the sky.

59.Answer: The energy in the battery is changed to

electrical (kinetic) energy through thewires to the lightbulb; The lightbulbproduces heat and light.

60.Answer: A

61.Answer: C

62.Answer: D

63.Answer: B

64.Answer: Student gives two correct answers that

specifically explain how the environmentprovides food, shelter, and protection fora beaver.

65.Answer: D

66.Answer:

67.Answer:

68.Answer:

69.Answer:

70.Answer: B

71.Answer: D

72.Answer: D

73.Answer: D

74.Answer: The Moon blocks light from the Sun;

Earth blocks light from the Sun.

75.Answer: Put out trashcans on the playground; Have

a school-wide recycling campaign to getstudents to recycle paper and cans; Pickup trash and have an assembly to discusswhy students shouldn’t litter; Punishstudents who are caught littering/do notallow them on the playground; Do notallow potential paper or litter items onthe playground.

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