Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 413 · 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.⚖️ 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
2. 2.🌈 How many colours do we name in a rainbow (VIBGYOR)?
3. 3.🛟 Which rule keeps you safe when working with sunlight? (a) look at it in a mirror (b) look at it through glass (c) stare at the Sun (d) never look at the Sun
4. 4.True or false: yeast is needed for the water rainbow. (a) True (b) False
5. 5.🌈 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
6. 6.🧺 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) yeast (d) bright sunlight
7. 7.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a clear glass of water (c) yeast (d) a mirror
8. 8.🌈 In VIBGYOR, what number colour is indigo?
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 keep it the same (b) we change it (c) we measure it
11. 11.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed
12. 12.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) orange (b) violet (c) yellow (d) red
13. 13.🛟 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 turns blue (d) so it does not fall
14. 14.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) red (b) blue (c) green (d) violet
15. 15.⚖️ 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
16. 16.⚖️ 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 keep it the same (b) we measure it (c) we change it
17. 17.⚖️ 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
18. 18.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it floats away (b) it turns brighter (c) it turns all red (d) the rainbow fades
19. 19.🧺 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 sunny window (d) a magnet
20. 20.True or false: a clear glass of water is not needed for the water rainbow. (a) False (b) True
21. 21.🧺 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 battery cell (d) a clear glass of water
22. 22.⚖️ 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 same window (c) brightness of rainbow
23. 23.True or false: a sheet of white paper is not needed for the water rainbow. (a) True (b) False
24. 24.⚖️ 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 glass (b) brightness of rainbow (c) the same window (d) the amount of water
25. 25.⚖️ 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) brightness of rainbow (b) the amount of water (c) the time of day (d) the same white paper
26. 26.🌈 In VIBGYOR, what number colour is red?
27. 27.🌦️ To see a rainbow in the sky, where must the Sun be? (a) behind you (b) in front of you (c) straight above you (d) under the ground
28. 28.🌈 In VIBGYOR, what number colour is blue?
29. 29.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a balloon (b) a clear glass of water (c) a sheet of white paper (d) bright sunlight
30. 30.⚖️ 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 amount of water (c) the same glass
31. 31.⚖️ 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
32. 32.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same white paper is what we measure. (a) False (b) True
33. 33.⚖️ 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 same white paper (c) brightness of rainbow
34. 34.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same white paper is kept the same. (a) True (b) False
35. 35.True or false: yeast is not needed for the water rainbow. (a) False (b) True
36. 36.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a shadow of ice (b) snow falling (c) a small rainbow (d) a magnet
37. 37.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a mirror (c) bright sunlight (d) a clear glass of water
38. 38.🧺 Which of these is not needed for the water rainbow? (a) turmeric powder (b) a sheet of white paper (c) a sunny window (d) a clear glass of water
39. 39.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same white paper is the one thing we change. (a) False (b) True
40. 40.True or false: a sheet of white paper is needed for the water rainbow. (a) True (b) False

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