Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 634 · 40 questions

What you do (Bend and split): 1. Fill a clear glass with water and set it on a steady, sunny windowsill. 2. Put white paper on the floor where the sunlight passes through the glass. 3. Move the paper or glass slowly until a rainbow appears. 4. Never look straight at the Sun.

1. 1.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed
2. 2.True or false: yeast is not needed for the water rainbow. (a) True (b) False
3. 3.🌈 In VIBGYOR, what number colour is yellow?
4. 4.🌦️ To see a rainbow in the sky, where must the Sun be? (a) under the ground (b) straight above you (c) in front of you (d) behind you
5. 5.🧺 Do we need turmeric powder for the water rainbow? (a) not needed (b) needed
6. 6.☀️ What is white sunlight really made of? (a) tiny drops of water (b) tiny bits of dust (c) only yellow light (d) many colours mixed
7. 7.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a balloon (c) a sunny window (d) a clear glass of water
8. 8.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) turmeric powder (c) bright sunlight (d) a magnet
9. 9.🌈 In VIBGYOR, what number colour is violet?
10. 10.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same glass”? (a) we measure it (b) we change it (c) we keep it the same
11. 11.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is what we measure. (a) False (b) True
12. 12.🧺 Which of these is not needed for the water rainbow? (a) yeast (b) a clear glass of water (c) a sunny window (d) bright sunlight
13. 13.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same window is kept the same. (a) True (b) False
14. 14.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a sunny window (c) a clear glass of water (d) a battery cell
15. 15.🌈 How many colours do we name in a rainbow (VIBGYOR)?
16. 16.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is kept the same? (a) brightness of rainbow (b) the same white paper (c) the amount of water
17. 17.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a clear glass of water (c) turmeric powder (d) a sheet of white paper
18. 18.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) bright sunlight (c) a mirror (d) a sheet of white paper
19. 19.🌈 In VIBGYOR, what number colour is green?
20. 20.True or false: a battery cell is needed for the water rainbow. (a) False (b) True
21. 21.🛟 Which rule keeps you safe when working with sunlight? (a) never look at the Sun (b) look at it in a mirror (c) look at it through glass (d) stare at the Sun
22. 22.🧺 Do we need a mirror for the water rainbow? (a) needed (b) not needed
23. 23.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the time of day”? (a) we change it (b) we keep it the same (c) we measure it
24. 24.🧺 Do we need a magnet for the water rainbow? (a) not needed (b) needed
25. 25.🧺 Do we need a clear glass of water for the water rainbow? (a) not needed (b) needed
26. 26.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is what we measure? (a) the time of day (b) the same glass (c) the amount of water (d) brightness of rainbow
27. 27.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is kept the same? (a) the same window (b) the amount of water (c) brightness of rainbow
28. 28.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is kept the same? (a) the amount of water (b) the time of day (c) brightness of rainbow
29. 29.True or false: a balloon is needed for the water rainbow. (a) True (b) False
30. 30.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a clear glass of water (c) a magnet (d) bright sunlight
31. 31.🌈 In VIBGYOR, what number colour is blue?
32. 32.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a battery cell (c) a sunny window (d) a sheet of white paper
33. 33.True or false: a mirror is not needed for the water rainbow. (a) False (b) True
34. 34.🛟 Why should the glass of water stand on a steady, flat place? (a) so the Sun moves (b) so it gets hot (c) so it does not fall (d) so it turns blue
35. 35.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a magnet (c) a sheet of white paper (d) a sunny window
36. 36.True or false: a clear glass of water is not needed for the water rainbow. (a) False (b) True
37. 37.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same window is the one thing we change. (a) False (b) True
38. 38.True or false: turmeric powder is needed for the water rainbow. (a) False (b) True
39. 39.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is the one thing we change? (a) the same white paper (b) the same window (c) the same glass (d) the amount of water
40. 40.🧺 Which of these is needed for the water rainbow? (a) a sheet of white paper (b) a mirror (c) turmeric powder (d) a balloon

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