Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 355 · 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 magnet for the water rainbow? (a) needed (b) not needed
2. 2.🌈 In VIBGYOR, what number colour is violet?
3. 3.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a mirror (c) a sunny window (d) a clear glass of water
4. 4.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a sunny window (c) a clear glass of water (d) a magnet
5. 5.📘 What do we call light bending as it passes from air into water? (a) magnetism (b) reflection (c) evaporation (d) refraction
6. 6.🛟 Which rule keeps you safe when working with sunlight? (a) look at it through glass (b) never look at the Sun (c) look at it in a mirror (d) stare at the Sun
7. 7.🌈 How many colours do we name in a rainbow (VIBGYOR)?
8. 8.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) red (b) orange (c) yellow (d) violet
9. 9.True or false: a battery cell is not needed for the water rainbow. (a) False (b) True
10. 10.🌈 In VIBGYOR, what number colour is yellow?
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 kept the same. (a) False (b) True
12. 12.🧺 Do we need a balloon for the water rainbow? (a) not needed (b) needed
13. 13.True or false: a sheet of white paper is needed for the water rainbow. (a) True (b) False
14. 14.True or false: bright sunlight is needed for the water rainbow. (a) False (b) True
15. 15.🌈 In VIBGYOR, what number colour is blue?
16. 16.⚖️ 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 amount of water (b) the same window (c) the same white paper (d) brightness of rainbow
17. 17.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is kept the same. (a) True (b) False
18. 18.🌦️ To see a rainbow in the sky, where must the Sun be? (a) behind you (b) under the ground (c) in front of you (d) straight above you
19. 19.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) a sheet of white paper (c) bright sunlight (d) a magnet
20. 20.⚖️ 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 same white paper (b) the time of day (c) the amount of water (d) brightness of rainbow
21. 21.⚖️ 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 keep it the same (b) we measure it (c) we change it
22. 22.🧺 Which of these is not needed for the water rainbow? (a) a battery cell (b) bright sunlight (c) a sheet of white paper (d) a clear glass of water
23. 23.🧺 Which of these is needed for the water rainbow? (a) a clear glass of water (b) a battery cell (c) a balloon (d) a mirror
24. 24.True or false: a magnet is needed for the water rainbow. (a) True (b) False
25. 25.🧺 Do we need a sheet of white paper for the water rainbow? (a) not needed (b) needed
26. 26.🧺 Do we need a mirror for the water rainbow? (a) needed (b) not needed
27. 27.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) the rainbow fades (b) it turns all red (c) it floats away (d) it turns brighter
28. 28.🧺 Do we need a battery cell for the water rainbow? (a) not needed (b) needed
29. 29.True or false: a sunny window is not needed for the water rainbow. (a) True (b) False
30. 30.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) bright sunlight (c) a battery cell (d) a mirror
31. 31.🌈 In VIBGYOR, what number colour is orange?
32. 32.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is the one thing we change. (a) False (b) True
33. 33.🧺 Do we need a clear glass of water for the water rainbow? (a) not needed (b) needed
34. 34.🧺 Do we need a sunny window for the water rainbow? (a) needed (b) not needed
35. 35.True or false: a sheet of white paper is not needed for the water rainbow. (a) False (b) True
36. 36.True or false: a balloon is needed for the water rainbow. (a) True (b) False
37. 37.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same white paper”? (a) we keep it the same (b) we measure it (c) we change it
38. 38.🛟 Why should the glass of water stand on a steady, flat place? (a) so it turns blue (b) so it does not fall (c) so the Sun moves (d) so it gets hot
39. 39.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) turmeric powder (c) bright sunlight (d) a sheet of white paper
40. 40.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a sunny window (c) bright sunlight (d) yeast

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