Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 502 · 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) yeast (c) a sunny window (d) a magnet
2. 2.⚖️ 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 white paper (b) brightness of rainbow (c) the amount of water (d) the same window
3. 3.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) green (b) violet (c) blue (d) red
4. 4.🛟 Which rule keeps you safe when working with sunlight? (a) stare at the Sun (b) never look at the Sun (c) look at it in a mirror (d) look at it through glass
5. 5.🌈 Why does sunlight make a rainbow through a glass of water? (a) the paper makes colours (b) the glass is painted (c) water splits the light (d) the water is coloured
6. 6.True or false: a battery cell is not needed for the water rainbow. (a) False (b) True
7. 7.⚖️ 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 white paper (c) the same glass (d) the amount of water
8. 8.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a sheet of white paper (c) a mirror (d) a clear glass of water
9. 9.🧺 Which of these is not needed for the water rainbow? (a) a magnet (b) a sunny window (c) a sheet of white paper (d) bright sunlight
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 battery cell (d) a sunny window
11. 11.🧺 Do we need a sunny window for the water rainbow? (a) needed (b) not needed
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 shadow of ice (d) a magnet
13. 13.🛟 Why should the glass of water stand on a steady, flat place? (a) so it gets hot (b) so the Sun moves (c) so it does not fall (d) so it turns blue
14. 14.True or false: yeast is needed for the water rainbow. (a) False (b) True
15. 15.🧺 Do we need bright sunlight for the water rainbow? (a) needed (b) not needed
16. 16.🧺 Which of these is needed for the water rainbow? (a) a clear glass of water (b) a magnet (c) yeast (d) turmeric powder
17. 17.🧺 Do we need a battery cell for the water rainbow? (a) not needed (b) needed
18. 18.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a mirror (c) a sheet of white paper (d) a clear glass of water
19. 19.☀️ What is white sunlight really made of? (a) tiny drops of water (b) tiny bits of dust (c) only yellow light (d) many colours mixed
20. 20.⚖️ 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) True (b) False
21. 21.🌈 In VIBGYOR, what number colour is indigo?
22. 22.⚖️ 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) True (b) False
23. 23.🧺 Which of these is not needed for the water rainbow? (a) turmeric powder (b) a sheet of white paper (c) a clear glass of water (d) a sunny window
24. 24.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) turmeric powder (c) bright sunlight (d) a clear glass of water
25. 25.True or false: a magnet is not needed for the water rainbow. (a) False (b) True
26. 26.🌈 In VIBGYOR, what number colour is green?
27. 27.True or false: yeast is not needed for the water rainbow. (a) True (b) False
28. 28.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) a sheet of white paper (c) a clear glass of water (d) yeast
29. 29.🧺 Do we need a mirror for the water rainbow? (a) needed (b) not needed
30. 30.🧺 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) yeast (d) bright sunlight
31. 31.True or false: a sheet of white paper is not needed for the water rainbow. (a) True (b) False
32. 32.⚖️ 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) True (b) False
33. 33.⚖️ 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 keep it the same (c) we change it
34. 34.🌈 How many colours do we name in a rainbow (VIBGYOR)?
35. 35.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is the one thing we change. (a) False (b) True
36. 36.⚖️ 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
37. 37.⚖️ 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 keep it the same (b) we measure it (c) we change it
38. 38.🧺 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) a balloon
39. 39.True or false: bright sunlight is needed for the water rainbow. (a) True (b) False
40. 40.🌈 In VIBGYOR, what number colour is yellow?

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