Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 174 · 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.True or false: turmeric powder is needed for the water rainbow. (a) True (b) False
2. 2.🧺 Do we need a clear glass of water for the water rainbow? (a) not needed (b) needed
3. 3.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) bright sunlight (c) a balloon (d) a clear glass of water
4. 4.🧺 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 mirror
5. 5.⚖️ 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 same glass (c) brightness of rainbow (d) the amount of water
6. 6.⚖️ 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 measure it (c) we change it
7. 7.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns all red (b) the rainbow fades (c) it floats away (d) it turns brighter
8. 8.🛟 Which rule keeps you safe when working with sunlight? (a) look at it in a mirror (b) stare at the Sun (c) look at it through glass (d) never look at the Sun
9. 9.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) a battery cell (c) bright sunlight (d) yeast
10. 10.🌈 How many colours do we name in a rainbow (VIBGYOR)?
11. 11.🧺 Do we need a mirror 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 sunny window (b) a sheet of white paper (c) a battery cell (d) a clear glass of water
13. 13.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) yeast (c) a clear glass of water (d) a magnet
14. 14.⚖️ 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) False (b) True
15. 15.⚖️ 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) True (b) False
16. 16.🧺 Do we need turmeric powder for the water rainbow? (a) needed (b) not needed
17. 17.🧺 Do we need a sunny window for the water rainbow? (a) needed (b) not needed
18. 18.True or false: yeast is needed for the water rainbow. (a) False (b) True
19. 19.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a sheet of white paper (c) yeast (d) a clear glass of water
20. 20.🧺 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 magnet (d) a sunny window
21. 21.⚖️ 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
22. 22.True or false: a mirror is needed for the water rainbow. (a) False (b) True
23. 23.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) violet (b) green (c) red (d) blue
24. 24.True or false: bright sunlight is needed for the water rainbow. (a) True (b) False
25. 25.🌈 In VIBGYOR, what number colour is green?
26. 26.🛟 Why should the glass of water stand on a steady, flat place? (a) so it does not fall (b) so it turns blue (c) so the Sun moves (d) so it gets hot
27. 27.⚖️ 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 time of day (b) brightness of rainbow (c) the amount of water
28. 28.⚖️ 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 measure it (b) we change it (c) we keep it the same
29. 29.⚖️ 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 time of day (d) the amount of water
30. 30.True or false: a clear glass of water is needed for the water rainbow. (a) True (b) False
31. 31.🧺 Which of these is not needed for the water rainbow? (a) a mirror (b) bright sunlight (c) a sunny window (d) a clear glass of water
32. 32.⚖️ 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
33. 33.True or false: a sheet of white paper is needed for the water rainbow. (a) False (b) True
34. 34.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a clear glass of water (c) a sheet of white paper (d) turmeric powder
35. 35.🧺 Which of these is not needed for the water rainbow? (a) yeast (b) bright sunlight (c) a sunny window (d) a clear glass of water
36. 36.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) orange (b) violet (c) yellow (d) red
37. 37.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a battery cell (c) a sunny window (d) a magnet
38. 38.🌈 In VIBGYOR, what number colour is blue?
39. 39.⚖️ 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 change it (b) we measure it (c) we keep it the same
40. 40.True or false: a magnet is needed for the water rainbow. (a) False (b) True

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