Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 547 · 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.🌈 In VIBGYOR, what number colour is violet?
2. 2.⚖️ 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
3. 3.⚖️ 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 same window (b) brightness of rainbow (c) the same glass (d) the amount of water
4. 4.True or false: a balloon is needed for the water rainbow. (a) True (b) False
5. 5.🛟 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
6. 6.📘 What do we call light bending as it passes from air into water? (a) reflection (b) evaporation (c) refraction (d) magnetism
7. 7.🌈 How many colours do we name in a rainbow (VIBGYOR)?
8. 8.🧺 Do we need yeast for the water rainbow? (a) needed (b) not needed
9. 9.⚖️ 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 keep it the same (b) we change it (c) we measure it
10. 10.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns all red (b) it turns brighter (c) the rainbow fades (d) it floats away
11. 11.🌈 In VIBGYOR, what number colour is indigo?
12. 12.🧺 Do we need a balloon for the water rainbow? (a) needed (b) not needed
13. 13.True or false: a clear glass of water is needed for the water rainbow. (a) False (b) True
14. 14.⚖️ 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
15. 15.⚖️ 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 amount of water (c) brightness of rainbow (d) the same window
16. 16.⚖️ 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) False (b) True
17. 17.🌈 In VIBGYOR, what number colour is red?
18. 18.True or false: a clear glass of water is not needed for the water rainbow. (a) True (b) False
19. 19.🧺 Which of these is needed for the water rainbow? (a) a mirror (b) a sheet of white paper (c) a battery cell (d) turmeric powder
20. 20.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) bright sunlight (c) a clear glass of water (d) a mirror
21. 21.🧺 Do we need bright sunlight for the water rainbow? (a) not needed (b) needed
22. 22.True or false: a magnet is not needed for the water rainbow. (a) False (b) True
23. 23.🧺 Do we need a clear glass of water for the water rainbow? (a) needed (b) not needed
24. 24.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a sheet of white paper (c) a sunny window (d) a battery cell
25. 25.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is the one thing we change. (a) True (b) False
26. 26.True or false: bright sunlight is not needed for the water rainbow. (a) False (b) True
27. 27.🌈 Why does sunlight make a rainbow through a glass of water? (a) the paper makes colours (b) water splits the light (c) the glass is painted (d) the water is coloured
28. 28.🛟 Which rule keeps you safe when working with sunlight? (a) look at it through glass (b) stare at the Sun (c) look at it in a mirror (d) never look at the Sun
29. 29.🧺 Which of these is needed for the water rainbow? (a) yeast (b) a mirror (c) turmeric powder (d) a sunny window
30. 30.🧺 Do we need a battery cell for the water rainbow? (a) not needed (b) needed
31. 31.⚖️ 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 measure it (b) we change it (c) we keep it the same
32. 32.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a magnet (b) a sunny window (c) bright sunlight (d) a sheet of white paper
33. 33.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
34. 34.⚖️ 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
35. 35.🌈 In VIBGYOR, what number colour is blue?
36. 36.⚖️ 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 change it (b) we keep it the same (c) we measure it
37. 37.⚖️ 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
38. 38.⚖️ 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
39. 39.🧺 Do we need a sunny window for the water rainbow? (a) not needed (b) needed
40. 40.🧺 Which of these is not needed for the water rainbow? (a) a magnet (b) bright sunlight (c) a sheet of white paper (d) a clear glass of water

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