Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 273 · 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.🧺 Do we need yeast for the water rainbow? (a) needed (b) not needed
2. 2.True or false: a sunny window is not needed for the water rainbow. (a) True (b) False
3. 3.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
4. 4.🌦️ To see a rainbow in the sky, where must the Sun be? (a) straight above you (b) behind you (c) in front of you (d) under the ground
5. 5.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a sunny window (c) bright sunlight (d) a mirror
6. 6.🧺 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) bright sunlight (d) a mirror
7. 7.⚖️ 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 glass
8. 8.🧺 Which of these is needed for the water rainbow? (a) yeast (b) a magnet (c) a clear glass of water (d) turmeric powder
9. 9.⚖️ 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 amount of water (b) the same white paper (c) the same glass (d) the same window
10. 10.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a magnet (c) bright sunlight (d) a sheet of white paper
11. 11.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed
12. 12.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) bright sunlight (c) yeast (d) a sunny window
13. 13.True or false: bright sunlight is not needed for the water rainbow. (a) True (b) False
14. 14.🛟 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 gets hot (d) so it turns blue
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) False (b) True
16. 16.🌈 In VIBGYOR, what number colour is yellow?
17. 17.🧺 Do we need a sunny window for the water rainbow? (a) needed (b) not needed
18. 18.True or false: a sheet of white paper is not needed for the water rainbow. (a) True (b) False
19. 19.🧺 Do we need a clear glass of water for the water rainbow? (a) not needed (b) needed
20. 20.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a sunny window (c) bright sunlight (d) a battery cell
21. 21.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a sheet of white paper (c) yeast (d) a clear glass of water
22. 22.True or false: a sunny window is needed for the water rainbow. (a) False (b) True
23. 23.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a sheet of white paper (c) a mirror (d) a magnet
24. 24.🔮 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
25. 25.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) orange (b) yellow (c) violet (d) red
26. 26.🌈 In VIBGYOR, what number colour is blue?
27. 27.⚖️ 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 measure it (c) we keep it the same
28. 28.🌈 In VIBGYOR, what number colour is violet?
29. 29.🌈 How many colours do we name in a rainbow (VIBGYOR)?
30. 30.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) bright sunlight (c) a balloon (d) yeast
31. 31.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a battery cell (c) a sunny window (d) a magnet
32. 32.⚖️ 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
33. 33.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
34. 34.🌈 Why does sunlight make a rainbow through a glass of water? (a) the paper makes colours (b) water splits the light (c) the water is coloured (d) the glass is painted
35. 35.🧺 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) turmeric powder
36. 36.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) clouds (b) magnets (c) balloons (d) prisms
37. 37.⚖️ 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 measure it (b) we change it (c) we keep it the same
38. 38.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a balloon (c) a sunny window (d) a clear glass of water
39. 39.🛟 Which rule keeps you safe when working with sunlight? (a) never look at the Sun (b) look at it in a mirror (c) look at it through glass (d) stare at the Sun
40. 40.True or false: a balloon is not needed for the water rainbow. (a) True (b) False

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