Plants Parts and Needs — Answer Key
Part A: Multiple Choice
Circle the best answer for each question.
1. A plant sits by a sunny window. What will most likely happen?
A) Grows green and strong
B) Turns into a rock
C) Floats away
D) Becomes a fish
With plenty of sunlight, the plant makes food, grows green leaves, and stays strong.
2. Two seeds are planted. Only one gets water. Which seed sprouts?
A) Neither one
B) The watered seed
C) Both quickly
D) The dry one
The watered seed soaks up water, swells, and sprouts; the dry one stays asleep.
3. A flower in a dark closet for one week will probably be?
A) Bright red
B) Extra tall
C) Pale and weak
D) Full of fruit
Without light, leaves cannot make food, so the flower turns pale and weak.
4. Which plant pot below will most likely grow the healthiest plant?
A) No soil, no sun
B) Soil but no water
C) Sun but no soil
D) Soil, sun, water
Plants need soil, sun, and water together to grow tall, green, and healthy.
Part B: Fill in the Blank
Write the correct answer on each line.
1. If a plant gets sun, water, and soil, it will grow tall.
When plants have all three needs met, they grow strong roots, stems, and leaves.
2. A seed planted with no water will not sprout at all.
Seeds stay asleep without water; nothing wakes them up to start growing.
3. Leaves use light from the sun to make plant food.
Leaves catch sunlight and use it to mix water and air into sugar food.
4. Two plants stand side by side; only one gets water.
The plant that gets water stays green, while the dry one wilts and droops.
5. Plants kept in cold, dark rooms will likely turn yellow.
Without light and warmth, leaves lose their green color and slowly turn yellow.