Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 743 · 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.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a battery cell (c) bright sunlight (d) a sunny window
2. 2.🧺 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 magnet (d) a sunny window
3. 3.⚖️ 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
4. 4.🧺 Which of these is needed for the water rainbow? (a) a sheet of white paper (b) a battery cell (c) a magnet (d) yeast
5. 5.🧺 Do we need a sheet of white paper for the water rainbow? (a) not needed (b) needed
6. 6.🌈 How many colours do we name in a rainbow (VIBGYOR)?
7. 7.⚖️ 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 change it (c) we keep it the same
8. 8.🌈 In VIBGYOR, what number colour is violet?
9. 9.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the time of day is what we measure. (a) True (b) False
10. 10.True or false: a balloon is not needed for the water rainbow. (a) True (b) False
11. 11.📘 What do we call light bending as it passes from air into water? (a) magnetism (b) refraction (c) reflection (d) evaporation
12. 12.🧺 Which of these is not needed for the water rainbow? (a) a mirror (b) a sunny window (c) a clear glass of water (d) a sheet of white paper
13. 13.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “brightness of rainbow”? (a) we change it (b) we keep it the same (c) we measure it
14. 14.🛟 Which rule keeps you safe when working with sunlight? (a) stare at the Sun (b) look at it through glass (c) look at it in a mirror (d) never look at the Sun
15. 15.⚖️ 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) True (b) False
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 change it (b) we measure it (c) we keep it the same
17. 17.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) the rainbow fades (b) it turns brighter (c) it floats away (d) it turns all red
18. 18.⚖️ 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 change it (c) we measure it
19. 19.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) bright sunlight (c) a clear glass of water (d) a balloon
20. 20.True or false: a battery cell is needed for the water rainbow. (a) False (b) True
21. 21.True or false: a mirror is not needed for the water rainbow. (a) True (b) False
22. 22.🧺 Do we need a sunny window for the water rainbow? (a) needed (b) not needed
23. 23.🧺 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) turmeric powder
24. 24.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the time of day is the one thing we change. (a) False (b) True
25. 25.🧺 Do we need bright sunlight for the water rainbow? (a) not needed (b) needed
26. 26.🧺 Which of these is needed for the water rainbow? (a) a sunny window (b) a magnet (c) a battery cell (d) a balloon
27. 27.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) turmeric powder (c) a sheet of white paper (d) a clear glass of water
28. 28.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is what we measure. (a) False (b) True
29. 29.🌈 In VIBGYOR, what number colour is blue?
30. 30.🌈 Why does sunlight make a rainbow through a glass of water? (a) water splits the light (b) the paper makes colours (c) the glass is painted (d) the water is coloured
31. 31.🌦️ To see a rainbow in the sky, where must the Sun be? (a) straight above you (b) under the ground (c) in front of you (d) behind you
32. 32.True or false: a balloon is needed for the water rainbow. (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) brightness of rainbow (b) the amount of water (c) the same white paper
34. 34.🧺 Do we need turmeric powder for the water rainbow? (a) needed (b) not needed
35. 35.True or false: bright sunlight is needed for the water rainbow. (a) True (b) False
36. 36.🛟 Why should the glass of water stand on a steady, flat place? (a) so it gets hot (b) so it turns blue (c) so the Sun moves (d) so it does not fall
37. 37.🌈 In VIBGYOR, what number colour is indigo?
38. 38.🧺 Do we need a magnet for the water rainbow? (a) not needed (b) needed
39. 39.⚖️ 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
40. 40.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) orange (b) red (c) yellow (d) violet

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