Rainbow Science Experiment Worksheet

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

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