Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 234 · 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 mirror (b) bright sunlight (c) a sheet of white paper (d) a clear glass of water
2. 2.⚖️ 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 change it (b) we measure it (c) we keep it the same
3. 3.🌈 In VIBGYOR, what number colour is red?
4. 4.🧺 Do we need bright sunlight for the water rainbow? (a) needed (b) not needed
5. 5.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) a magnet (c) a sunny window (d) a balloon
6. 6.🧺 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 battery cell (d) a sunny window
7. 7.☀️ What is white sunlight really made of? (a) many colours mixed (b) tiny drops of water (c) tiny bits of dust (d) only yellow light
8. 8.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns all red (b) it floats away (c) it turns brighter (d) the rainbow fades
9. 9.🌦️ To see a rainbow in the sky, where must the Sun be? (a) under the ground (b) in front of you (c) behind you (d) straight above you
10. 10.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed
11. 11.⚖️ 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 keep it the same (b) we change it (c) we measure it
12. 12.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the time of day is what we measure. (a) True (b) False
13. 13.⚖️ 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 same white paper (c) the same window (d) brightness of rainbow
14. 14.True or false: a magnet is needed for the water rainbow. (a) True (b) False
15. 15.⚖️ 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
16. 16.📘 What do we call light bending as it passes from air into water? (a) reflection (b) refraction (c) magnetism (d) evaporation
17. 17.⚖️ 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) True (b) False
18. 18.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) violet (b) blue (c) green (d) red
19. 19.⚖️ 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 measure it (b) we change it (c) we keep it the same
20. 20.🛟 Why should the glass of water stand on a steady, flat place? (a) so the Sun moves (b) so it does not fall (c) so it gets hot (d) so it turns blue
21. 21.🌈 In VIBGYOR, what number colour is indigo?
22. 22.True or false: a clear glass of water is needed for the water rainbow. (a) True (b) False
23. 23.True or false: a sheet of white paper is not needed for the water rainbow. (a) False (b) True
24. 24.⚖️ 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) brightness of rainbow (b) the amount of water (c) the same window (d) the same white paper
25. 25.🧺 Do we need a magnet for the water rainbow? (a) not needed (b) needed
26. 26.🧺 Do we need a mirror for the water rainbow? (a) not needed (b) needed
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 measure it (b) we change it (c) we keep it the same
28. 28.🌈 How many colours do we name in a rainbow (VIBGYOR)?
29. 29.⚖️ 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
30. 30.🌈 In VIBGYOR, what number colour is yellow?
31. 31.🧺 Do we need a balloon for the water rainbow? (a) not needed (b) needed
32. 32.🌈 In VIBGYOR, what number colour is green?
33. 33.⚖️ 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 amount of water (b) brightness of rainbow (c) the same window
34. 34.🛟 Which rule keeps you safe when working with sunlight? (a) look at it through glass (b) never look at the Sun (c) stare at the Sun (d) look at it in a mirror
35. 35.🧺 Which of these is not needed for the water rainbow? (a) turmeric powder (b) a sunny window (c) a sheet of white paper (d) bright sunlight
36. 36.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a clear glass of water (c) a magnet (d) a mirror
37. 37.🌈 In VIBGYOR, what number colour is blue?
38. 38.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) yeast (c) a clear glass of water (d) a sheet of white paper
39. 39.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
40. 40.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) yeast (c) a magnet (d) a sheet of white paper

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