Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 563 · 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.🌈 How many colours do we name in a rainbow (VIBGYOR)?
2. 2.🧺 Do we need a mirror for the water rainbow? (a) needed (b) not needed
3. 3.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a sheet of white paper (c) a mirror (d) bright sunlight
4. 4.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
5. 5.⚖️ 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 same glass (b) the amount of water (c) brightness of rainbow
6. 6.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a sunny window (c) turmeric powder (d) a mirror
7. 7.🛟 Which rule keeps you safe when working with sunlight? (a) never look at the Sun (b) stare at the Sun (c) look at it in a mirror (d) look at it through glass
8. 8.🧺 Do we need a sunny window 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? True or false: the time of day is kept the same. (a) False (b) True
10. 10.🛟 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 it gets hot (d) so the Sun moves
11. 11.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a clear glass of water (c) yeast (d) a sheet of white paper
12. 12.⚖️ 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
13. 13.⚖️ 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) False (b) True
14. 14.⚖️ 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 measure it (c) we change it
15. 15.⚖️ 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) the same glass (d) the same window
16. 16.🧺 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
17. 17.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) a battery cell (c) a sheet of white paper (d) yeast
18. 18.True or false: a clear glass of water is not 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 sheet of white paper (b) a sunny window (c) bright sunlight (d) a magnet
20. 20.True or false: a magnet is needed for the water rainbow. (a) True (b) False
21. 21.🌈 In VIBGYOR, what number colour is indigo?
22. 22.True or false: bright sunlight is not needed for the water rainbow. (a) True (b) False
23. 23.🔮 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
24. 24.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns brighter (b) it floats away (c) it turns all red (d) the rainbow fades
25. 25.🌈 In VIBGYOR, what number colour is yellow?
26. 26.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a sunny window (c) bright sunlight (d) turmeric powder
27. 27.True or false: yeast is needed for the water rainbow. (a) True (b) False
28. 28.True or false: turmeric powder is needed for the water rainbow. (a) True (b) False
29. 29.⚖️ 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) True (b) False
30. 30.True or false: a sunny window is not needed for the water rainbow. (a) False (b) True
31. 31.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) bright sunlight (c) a mirror (d) a magnet
32. 32.True or false: a sheet of white paper is needed for the water rainbow. (a) False (b) True
33. 33.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) prisms (b) balloons (c) clouds (d) magnets
34. 34.🧺 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 sheet of white paper
35. 35.🌈 Why does sunlight make a rainbow through a glass of water? (a) the water is coloured (b) the glass is painted (c) the paper makes colours (d) water splits the light
36. 36.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) a balloon (c) turmeric powder (d) a clear glass of water
37. 37.⚖️ 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 glass (b) the time of day (c) the same window (d) brightness of rainbow
38. 38.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a sunny window (c) a battery cell (d) a clear glass of water
39. 39.🧺 Do we need a clear glass of water for the water rainbow? (a) not needed (b) needed
40. 40.⚖️ 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

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