Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 753 · 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.🧺 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) bright sunlight
2. 2.⚖️ 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
3. 3.⚖️ 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 amount of water (c) the time of day (d) brightness of rainbow
4. 4.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a balloon (b) bright sunlight (c) a sheet of white paper (d) a clear glass of water
5. 5.🌈 In VIBGYOR, what number colour is red?
6. 6.🛟 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
7. 7.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a mirror (b) a sunny window (c) a clear glass of water (d) a sheet of white paper
8. 8.🌈 In VIBGYOR, what number colour is blue?
9. 9.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a mirror (c) bright sunlight (d) a battery cell
10. 10.🌈 In VIBGYOR, what number colour is indigo?
11. 11.True or false: a mirror is needed for the water rainbow. (a) False (b) True
12. 12.⚖️ 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
13. 13.🧺 Do we need yeast for the water rainbow? (a) needed (b) not needed
14. 14.⚖️ 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
15. 15.📘 What do we call light bending as it passes from air into water? (a) magnetism (b) evaporation (c) reflection (d) refraction
16. 16.⚖️ 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 time of day
17. 17.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) clouds (b) magnets (c) balloons (d) prisms
18. 18.🛟 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
19. 19.🧺 Do we need a battery cell for the water rainbow? (a) not needed (b) needed
20. 20.True or false: a sunny window is needed for the water rainbow. (a) True (b) False
21. 21.🌈 In VIBGYOR, what number colour is green?
22. 22.🌈 In VIBGYOR, what number colour is orange?
23. 23.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same white paper”? (a) we measure it (b) we change it (c) we keep it the same
24. 24.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) blue (b) violet (c) red (d) green
25. 25.🌦️ To see a rainbow in the sky, where must the Sun be? (a) in front of you (b) straight above you (c) under the ground (d) behind you
26. 26.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
27. 27.True or false: a mirror is not needed for the water rainbow. (a) False (b) True
28. 28.True or false: a battery cell 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? What do we do with “brightness of rainbow”? (a) we keep it the same (b) we measure it (c) we change it
30. 30.⚖️ 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 measure it (b) we change it (c) we keep it the same
31. 31.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a mirror (c) a sheet of white paper (d) a battery cell
32. 32.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a sheet of white paper (c) a clear glass of water (d) a magnet
33. 33.🧺 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) turmeric powder
34. 34.🌈 Why does sunlight make a rainbow through a glass of water? (a) water splits the light (b) the water is coloured (c) the glass is painted (d) the paper makes colours
35. 35.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) red (b) yellow (c) orange (d) violet
36. 36.🌈 How many colours do we name in a rainbow (VIBGYOR)?
37. 37.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is what we measure. (a) False (b) True
38. 38.⚖️ 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
39. 39.🌈 In VIBGYOR, what number colour is yellow?
40. 40.⚖️ 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) True (b) False

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