Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 853 · 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 green?
2. 2.🧺 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) yeast
3. 3.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a battery cell (c) bright sunlight (d) a mirror
4. 4.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) clouds (b) magnets (c) balloons (d) prisms
5. 5.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) red (b) blue (c) green (d) violet
6. 6.🧺 Which of these is needed for the water rainbow? (a) a mirror (b) a sheet of white paper (c) a balloon (d) yeast
7. 7.📘 What do we call light bending as it passes from air into water? (a) refraction (b) magnetism (c) reflection (d) evaporation
8. 8.True or false: a sheet of white paper is needed for the water rainbow. (a) False (b) True
9. 9.🌦️ 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
10. 10.🧺 Which of these is needed for the water rainbow? (a) a sunny window (b) a magnet (c) yeast (d) turmeric powder
11. 11.⚖️ 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
12. 12.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed
13. 13.⚖️ 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) the same glass (c) the same white paper (d) the amount of water
14. 14.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is kept the same. (a) False (b) True
15. 15.🌈 Why does sunlight make a rainbow through a glass of water? (a) water splits the light (b) the glass is painted (c) the water is coloured (d) the paper makes colours
16. 16.🌈 How many colours do we name in a rainbow (VIBGYOR)?
17. 17.🛟 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
18. 18.🧺 Do we need turmeric powder for the water rainbow? (a) needed (b) not needed
19. 19.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a sunny window (c) a sheet of white paper (d) turmeric powder
20. 20.🧺 Do we need a mirror for the water rainbow? (a) needed (b) not needed
21. 21.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns all red (b) it floats away (c) the rainbow fades (d) it turns brighter
22. 22.🧺 Do we need yeast for the water rainbow? (a) not needed (b) needed
23. 23.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a balloon (c) a clear glass of water (d) a sheet of white paper
24. 24.🧺 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) 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? What do we do with “the same window”? (a) we keep it the same (b) we measure it (c) we change it
26. 26.⚖️ 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) brightness of rainbow (c) the same white paper (d) the same glass
27. 27.⚖️ 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 keep it the same (c) we change it
28. 28.🧺 Do we need a clear glass of water for the water rainbow? (a) needed (b) not needed
29. 29.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
30. 30.🌈 In VIBGYOR, what number colour is blue?
31. 31.⚖️ 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
32. 32.🛟 Which rule keeps you safe when working with sunlight? (a) look at it through glass (b) look at it in a mirror (c) stare at the Sun (d) never look at the Sun
33. 33.True or false: a magnet is needed for the water rainbow. (a) False (b) True
34. 34.⚖️ 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
35. 35.⚖️ 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 keep it the same (c) we measure it
36. 36.⚖️ 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 window
37. 37.⚖️ 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
38. 38.🧺 Do we need a balloon for the water rainbow? (a) needed (b) not needed
39. 39.True or false: bright sunlight is not needed for the water rainbow. (a) True (b) False
40. 40.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) a balloon (c) bright sunlight (d) a clear glass of water

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