Science Lower Secondary Checkpoint - Practice test 9

Which cell type absorbs water and mineral salts?

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Which cell type contracts to cause movement?

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Which cell type transports oxygen around the body?

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Which cell type uses light energy to make food?

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Which is the correct match for chemical energy?

• chemical — also called heat energy — a fire

• chemical — energy of moving objects — a girl running

• chemical — stored energy — food

• chemical — also called radiant energy — the Sun

Which is the correct match for kinetic energy?

• kinetic — energy of moving objects — a girl running

• kinetic — energy released by vibrating objects — a boy talking

• kinetic — stored energy — food

• kinetic — also called heat energy — a fire

Which is the correct match for sound energy?

• sound — also called radiant energy — the Sun

• sound — stored energy — food

• sound — energy of moving objects — a girl running

• sound — energy released by vibrating objects — a boy talking

Which is the correct match for thermal energy?

• thermal — stored energy — food

• thermal — also called heat energy — a fire

• thermal — energy of moving objects — a girl running

• thermal — also called radiant energy — the Sun

(a) A rock can only be scratched by a substance that is harder than the rock.

Which rock is the softest?

• A

• B

• C

• D

• E

(b) Mike finds this information about the hardness of rocks.
(i) What is the relative hardness of rock E?

(a)