Plants: Growth & Needs — Answer Key
Part A: Multiple Choice
Circle the best answer for each question.
1. How do plants get their food?
A) They hunt bugs to eat
B) They make it using sunlight
C) They eat dirt from the soil
D) They drink milk from cows
Plants make their own food using sun, air, and water.
2. Which is true about animals but NOT plants?
A) They need water to live
B) They must eat other living things
C) They need air to breathe
D) They can have babies
Animals must eat plants or other animals to live.
3. What important gas do plants give off into the air?
A) Smoke
B) Oxygen
C) Sand
D) Water drops
Plants give off oxygen, which people and animals need.
4. A cactus in the desert has a special way to...
A) Store water in its thick stem
B) Run from hot sun
C) Eat small animals daily
D) Swim in desert ponds
Cactus stems hold water to live where rain is rare.
Part B: Fill in the Blank
Write the correct answer on each line.
1. Plants make their own food using sunlight.
Plants use sun, air, and water to make food in leaves.
2. Animals must eat plants or other animals to live.
Animals cannot make food, so they eat to get energy.
3. Plants give off oxygen that people breathe in.
Plants release oxygen that people and animals breathe.
4. A pine tree has thin needles instead of flat leaves.
Needles help pine trees save water in cold winters.
5. Plants are important because they feed and help animals.
Animals depend on plants for food and for oxygen.