Science 7 - Introduction to Matter Review

Which is an example of a chemical change?

• leaves falling from trees

• leaves burned in a fire

• leaves blowing in the wind

• leaves being crushed to pieces

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one liter of water in the refrigerator and one liter of water in the freezer would likely have the same...

• mass

• density

• volume

• shape

What are the building blocks of all matter?

• atoms

• cells

• molecules

• nucleus

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What is an example of a chemical change?

• wood burning

• water boiling

• ice melting

• sugar dissolving

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Why is baking a cake an example of a chemical change?

• the state of matter changes

• the volume changes

• a new substance is created

• energy is created

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What kind of change would it be if your experiment turns black and starts smoking?

• physical

• electrical

• magnetic

• chemical

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What best describes a chemical that cannot be separated into other chemicals?

• mixture

• element

• atom

• compound

Small particles found in matter are always...

• breaking

• shrinking

• moving

• growing

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What happens when water changes from a liquid to a gas?

• molecules spread farther apart

• a new compound is formed

• a new element is formed

• molecules lose electrons

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Is this equation balanced, yes or no?

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