Physical Science Review

Which characteristic do single-celled organisms and multicellular organisms have in common?

• Both have cells with specialized functions for each life process.

• Both perform all life processes within one cell.

• Both have a way to get rid of waste materials.

• Both are able to make food from sunlight.

How do the muscular and skeletal systems work together to help the body?

• They provide blood to the body.

• They provide nutrients to the body.

• They provide structure and movement for the body.

• They provide oxygen and carbon dioxide to the body.

Which of these is a structure that is present in all organisms?

• a tissue

• a cell

• a stomach

• a brain

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Ric rolled four different balls across a table. All of the balls were the same size, but each had a different mass. The table shows the mass of each ball.

Ric rolled each ball with the same amount of force. Which ball MOST likely rolled the farthest?

• Ball 1

• Ball 2

• Ball 3

• Ball 4

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Which best describes a material that would be used to insulate a house?

• excellent conductor of heat

• excellent conductor of cold

• poor conductor of heat

• poor conductor of cold

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Which material will most likely melt the quickest when heated on a stove?

• iron

• wood

• glass

• butter

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Tires for cars, bicycles and lawn mowers are made of rubber. Which best explains why tires are made of rubber?

• Rubber can be dyed many different colors.

• Rubber can withstand heat caused by friction.

• Rubber can be molded into many different shapes.

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Kayser placed his wooden baseball bat in the sun. The bat cracked open along the center. What is the most likely reason for this happening?

• The wooden bat cools in the sun.

• The wooden bat evaporates in the sun.

• The sun’s heat causes the wooden bat to expand.

• The sun’s heat causes the wooden bat to contract.

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Walker is helping her mom cook. She takes a glass casserole dish directly from the refrigerator and puts it in the oven. Which best explains the result of putting the cold dish in the hot oven?

• The dish cracks or breaks.

• The dish quickly changes color.

• The dish contracts and shrinks.

• The dish stays cool and will not warm.

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George works in the school garden. He needs to remove a heavy rock from the soil. George decides to use a shovel to lift the rock. Which picture shows the BEST way for George to use the shovel to lift the rock?

• A

• B

• C

• D