iStarSign inScience 3 · Unit 1: Plants are living things · Cambridge Primary Science Stage 3
1.4 Plants need water and the right temperature
14 questions · e.g. How does water move in a tall tree?
Questions
1. How does water move in a tall tree?
- through the air
- up lots of very narrow tubes in the stem
- it does not move
- down from the leaves to the roots
2. A white flower is put in water with food colouring. What happens?
Check3. What does the flower and food colouring test show?
- Water moves up through the stem.
- Water moves down the stem.
- Flowers make water.
- Leaves absorb colour from the air.
4. Leafy stems stand in a jar of water. What happens to the water level over five days?
Check5. What happens to a plant's water if it is too cold?
Check6. What can happen to a plant if it is too hot?
Check7. Plant B grows in good soil, plant A in sandy soil, plant C in stones. Which grows best?
Check8. Why does the plant in stones grow the least?
- Stones have too much food.
- Stones are too warm.
- Stones are too dark.
- The stones hold no water for the roots.
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11. What unit is best for measuring the water level in a jar?
Check12. Seeds are put in a warm place, at room temperature and in the cold. What are we testing?
- what colour seeds are
- how much water seeds need
- how temperature affects plant growth
- how light affects plants
13. What do leaves use water for?
Check14. Some trees are very tall. How tall can they be?
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