4ESNS12F

Which of the following makes use of stored chemical energy to do work ?

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Which diagram correctly shows the exchange of gases

between plants and animals during photosynthesis ?

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Which breathing structure allows a frog to breathe on land and in underwater?

• Lungs and gills

• Moist skin and gills

• Lungs and Moist skin

• Book lungs and tracheal system

Which picture shows a pulling force ?

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Identify the organs that play a part in the digestion of food ?

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A force can change the ___________ of a moving thing.

• i

• ii

• iii

• iv

• Both i & ii

The snake in this food chain is a predator because it ....

• A) eats other animals.

• (B) is eaten by the hawk.

• (C) is the largest animal.

• (D) eats only plants.

Which statement is true for all of these animals ?

• (A) They all hatch from eggs.

• (B) They all have the same body covering.

• (C) They all are mammals.

• (D) They all live only in water.

The picture shows a glass of hot water. After some time there are water drops on the inside edge of the glass. Where did the water come from ?

• A) It leaked through the glass.

• B) It was sweat from a person.

• C) The glass was tipped over by someone.

• D) it condensed from the rising steam.

Which of these is an omnivore ?

• (A) A cat that eats mice.

• (B) A cow that eats grass.

• (C) A frog that eats insects.

• (D) An opossum that eats fruit and fish.