Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 704 · 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.True or false: a sheet of white paper is needed for the water rainbow. (a) False (b) True
3. 3.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) a clear glass of water (c) a balloon (d) a mirror
4. 4.🛟 Why should the glass of water stand on a steady, flat place? (a) so it turns blue (b) so it gets hot (c) so it does not fall (d) so the Sun moves
5. 5.🛟 Which rule keeps you safe when working with sunlight? (a) look at it in a mirror (b) never look at the Sun (c) look at it through glass (d) stare at the Sun
6. 6.True or false: a balloon is needed for the water rainbow. (a) True (b) False
7. 7.🌈 In VIBGYOR, what number colour is indigo?
8. 8.🧺 Do we need a magnet for the water rainbow? (a) not needed (b) needed
9. 9.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a magnet (b) a clear glass of water (c) a sunny window (d) bright sunlight
10. 10.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
11. 11.🧺 Which of these is not needed for the water rainbow? (a) yeast (b) a sunny window (c) bright sunlight (d) a clear glass of water
12. 12.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a small rainbow (b) snow falling (c) a magnet (d) a shadow of ice
13. 13.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) turmeric powder (c) a sheet of white paper (d) a clear glass of water
14. 14.⚖️ 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 same window (c) the amount of water
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 amount of water (b) the same glass (c) the same window (d) the time of day
16. 16.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it floats away (b) it turns all red (c) it turns brighter (d) the rainbow fades
17. 17.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a mirror (c) a clear glass of water (d) a sunny window
18. 18.⚖️ 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
19. 19.🌈 In VIBGYOR, what number colour is blue?
20. 20.🌦️ To see a rainbow in the sky, where must the Sun be? (a) under the ground (b) straight above you (c) in front of you (d) behind you
21. 21.🌈 In VIBGYOR, what number colour is violet?
22. 22.🧺 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 clear glass of water (d) turmeric powder
23. 23.🌈 Why does sunlight make a rainbow through a glass of water? (a) the water is coloured (b) the glass is painted (c) water splits the light (d) the paper makes colours
24. 24.⚖️ 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
25. 25.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) clouds (b) magnets (c) prisms (d) balloons
26. 26.⚖️ 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
27. 27.⚖️ 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 measure it (c) we keep it the same
28. 28.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a balloon (c) a sheet of white paper (d) a clear glass of water
29. 29.🌈 In VIBGYOR, what number colour is red?
30. 30.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a battery cell (c) a clear glass of water (d) a sheet of white paper
31. 31.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a sheet of white paper (c) a battery cell (d) a balloon
32. 32.⚖️ 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
33. 33.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a mirror (c) bright sunlight (d) a sunny window
34. 34.🧺 Do we need bright sunlight for the water rainbow? (a) needed (b) not needed
35. 35.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) bright sunlight (c) a balloon (d) a magnet
36. 36.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) blue (b) red (c) violet (d) green
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 time of day (b) the same window (c) brightness of rainbow (d) the same glass
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) brightness of rainbow (b) the same white paper (c) the amount of water
39. 39.🧺 Do we need a clear glass of water for the water rainbow? (a) not needed (b) needed
40. 40.True or false: bright sunlight is not needed for the water rainbow. (a) True (b) False

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