What Plants Need to Grow · seed 1 · A4, ink-friendly. The answer key prints on its own page for grown-ups.

What Plants Need to Grow

Science · Organisms & Life Processes · ages 6-8
Name ______________________   Date ____________

  1. What usually happens to a plant that never gets any water?

    • It grows taller and greener
    • It wilts and dries out
    • It turns bright blue

  2. Which three things does every plant need to grow well?

    • Water, light, and a good temperature
    • Water, sand, and moonlight
    • Soil, rocks, and shade

  3. A plant kept in a dark cupboard will grow just as well as one on a sunny windowsill.

    Circle one:   True   False

  4. Look at the chart. One plant sat on a sunny windowsill and one sat in a dark cupboard for two weeks. Which plant grew taller?

    Sunny spot9Darkcupboard3
    • The plant in the dark cupboard
    • The plant on the sunny windowsill
    • They grew exactly the same

  5. Leo left his plant outside during a freezing snowstorm all night. What most likely happened to it?

    • The cold made it grow faster
    • Nothing changes, plants like any weather
    • The cold made its leaves turn brown or mushy

  6. Think back to the lesson. How many things does every plant need to grow well?

    Answer: ______________

  7. Two classes each grew a bean plant. Class A gave theirs water and sunlight every day. Class B forgot to water theirs for a whole week. Whose plant is most likely healthier, and why?

    • Class A's plant, because it got the water and light it needed
    • Class B's plant, because less water makes stronger roots
    • Both plants are the same, since water doesn't matter

  8. Anna waters her plant every day but keeps it in a closet with no windows. Why does it still grow weak and pale?

    • Because she is watering it too often
    • Because closets are always too cold
    • Because it isn't getting any light
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Answer key

For grown-ups. Fold this page away before handing over the rest.

What Plants Need to Grow W1-mt_3v0VNkwquK-s1

  1. It wilts and dries out · Without water, a plant can't carry food to its leaves, so it wilts and dries up.
  2. Water, light, and a good temperature · Every plant needs water to drink, light to make its food, and weather that isn't too hot or too cold.
  3. False · Without light, a plant can't make its own food, so it grows weak and pale instead of healthy.
  4. The plant on the sunny windowsill · The test shows the sunny plant grew much taller. Light helps a plant make the food it needs to grow.
  5. The cold made its leaves turn brown or mushy · Freezing cold can damage a plant's leaves and stems, just like too little water or light can.
  6. 3 · Water, light, and a good temperature: that's three things every plant needs.
  7. Class A's plant, because it got the water and light it needed · A plant that gets what it needs (water, light, and a good temperature) tends to grow up healthier than one that misses out.
  8. Because it isn't getting any light · Water alone isn't enough. Without light, a plant can't make the food it needs to grow strong.
Worksheet · LightMySky