Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 677 · 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.🛟 Why should the glass of water stand on a steady, flat place? (a) so the Sun moves (b) so it does not fall (c) so it turns blue (d) so it gets hot
2. 2.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a sheet of white paper (c) a clear glass of water (d) turmeric powder
3. 3.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) yeast (c) a clear glass of water (d) bright sunlight
4. 4.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a clear glass of water (c) a balloon (d) a sheet of white paper
5. 5.🧺 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 sunny window
6. 6.True or false: a mirror is not needed for the water rainbow. (a) True (b) False
7. 7.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a sunny window (c) a battery cell (d) a mirror
8. 8.🧺 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) bright sunlight (d) a magnet
9. 9.🌈 How many colours do we name in a rainbow (VIBGYOR)?
10. 10.🌈 In VIBGYOR, what number colour is red?
11. 11.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) red (b) green (c) violet (d) blue
12. 12.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same window”? (a) we measure it (b) we keep it the same (c) we change it
13. 13.🌈 In VIBGYOR, what number colour is yellow?
14. 14.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) a magnet (c) a mirror (d) bright sunlight
15. 15.🌈 In VIBGYOR, what number colour is violet?
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 time of day (b) the same glass (c) the same window (d) the amount of water
17. 17.🌈 Why does sunlight make a rainbow through a glass of water? (a) the water is coloured (b) the glass is painted (c) water splits the light (d) the paper makes colours
18. 18.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
19. 19.True or false: a clear glass of water is needed for the water rainbow. (a) False (b) True
20. 20.📘 What do we call light bending as it passes from air into water? (a) magnetism (b) refraction (c) reflection (d) evaporation
21. 21.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) violet (b) yellow (c) orange (d) red
22. 22.⚖️ 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
23. 23.⚖️ 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) brightness of rainbow (c) the same white paper
24. 24.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a sheet of white paper (c) a balloon (d) bright sunlight
25. 25.⚖️ 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
26. 26.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) the rainbow fades (b) it floats away (c) it turns brighter (d) it turns all red
27. 27.True or false: a balloon is needed for the water rainbow. (a) False (b) True
28. 28.True or false: a magnet is needed for the water rainbow. (a) False (b) True
29. 29.⚖️ 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
30. 30.True or false: a magnet is not needed for the water rainbow. (a) False (b) True
31. 31.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) bright sunlight (c) a sunny window (d) a battery cell
32. 32.🛟 Which rule keeps you safe when working with sunlight? (a) look at it through glass (b) never look at the Sun (c) stare at the Sun (d) look at it in a mirror
33. 33.⚖️ 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 measure it (c) we keep it the same
34. 34.True or false: a sunny window is not needed for the water rainbow. (a) False (b) True
35. 35.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the amount of water”? (a) we change it (b) we keep it the same (c) we measure it
36. 36.True or false: a clear glass of water is not needed for the water rainbow. (a) True (b) False
37. 37.True or false: a sheet of white paper is needed for the water rainbow. (a) False (b) True
38. 38.🌈 In VIBGYOR, what number colour is indigo?
39. 39.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a mirror (b) bright sunlight (c) a sheet of white paper (d) a clear glass of water
40. 40.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a clear glass of water (c) a sunny window (d) yeast

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