Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 61 · 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.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) turmeric powder (c) bright sunlight (d) yeast
2. 2.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) blue (b) red (c) green (d) violet
3. 3.🧺 Do we need a balloon for the water rainbow? (a) needed (b) not needed
4. 4.🌈 In VIBGYOR, what number colour is red?
5. 5.True or false: a sheet of white paper is needed for the water rainbow. (a) False (b) True
6. 6.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a battery cell (b) a clear glass of water (c) a sunny window (d) bright sunlight
7. 7.🌈 How many colours do we name in a rainbow (VIBGYOR)?
8. 8.🧺 Do we need a mirror for the water rainbow? (a) needed (b) not needed
9. 9.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) bright sunlight (c) a magnet (d) a sunny window
10. 10.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) bright sunlight (c) a mirror (d) a sunny window
11. 11.🧺 Which of these is needed for the water rainbow? (a) a sunny window (b) turmeric powder (c) a battery cell (d) yeast
12. 12.⚖️ 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 white paper (b) the same glass (c) the amount of water (d) the time of day
13. 13.🛟 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
14. 14.📘 What do we call light bending as it passes from air into water? (a) refraction (b) evaporation (c) magnetism (d) reflection
15. 15.🧺 Do we need a magnet for the water rainbow? (a) not needed (b) needed
16. 16.🌈 In VIBGYOR, what number colour is green?
17. 17.☀️ What is white sunlight really made of? (a) only yellow light (b) tiny drops of water (c) many colours mixed (d) tiny bits of dust
18. 18.True or false: a magnet is needed for the water rainbow. (a) True (b) False
19. 19.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a sheet of white paper (c) a sunny window (d) a balloon
20. 20.⚖️ 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
21. 21.🧺 Which of these is not needed for the water rainbow? (a) yeast (b) a clear glass of water (c) a sunny window (d) bright sunlight
22. 22.🛟 Which rule keeps you safe when working with sunlight? (a) look at it in a mirror (b) never look at the Sun (c) stare at the Sun (d) look at it through glass
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 keep it the same (b) we change it (c) we measure it
24. 24.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same white paper is the one thing we change. (a) False (b) True
25. 25.True or false: a mirror is needed for the water rainbow. (a) True (b) False
26. 26.True or false: a sunny window is not needed for the water rainbow. (a) False (b) True
27. 27.🧺 Do we need a clear glass of water for the water rainbow? (a) needed (b) not needed
28. 28.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
29. 29.🧺 Do we need bright sunlight for the water rainbow? (a) not needed (b) needed
30. 30.⚖️ 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
31. 31.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is what we measure? (a) brightness of rainbow (b) the same window (c) the same white paper (d) the time of day
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.⚖️ 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) False (b) True
34. 34.⚖️ 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
35. 35.⚖️ 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
36. 36.🧺 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) yeast
37. 37.🌈 In VIBGYOR, what number colour is blue?
38. 38.⚖️ 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
39. 39.🧺 Do we need turmeric powder for the water rainbow? (a) needed (b) not needed
40. 40.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a sunny window (c) a balloon (d) a sheet of white paper

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