Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 886 · 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 clear glass of water (c) a sunny window (d) a magnet
2. 2.True or false: a sunny window is not needed for the water rainbow. (a) False (b) True
3. 3.🛟 Why should the glass of water stand on a steady, flat place? (a) so it does not fall (b) so the Sun moves (c) so it gets hot (d) so it turns blue
4. 4.🌈 In VIBGYOR, what number colour is violet?
5. 5.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same white paper is what we measure. (a) False (b) True
6. 6.🧺 Which of these is needed for the water rainbow? (a) yeast (b) a sheet of white paper (c) a mirror (d) a balloon
7. 7.⚖️ 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
8. 8.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) yeast (c) a clear glass of water (d) a sheet of white paper
9. 9.🧺 Do we need a sunny window for the water rainbow? (a) needed (b) not needed
10. 10.🌈 In VIBGYOR, what number colour is indigo?
11. 11.🧺 Do we need yeast for the water rainbow? (a) not needed (b) needed
12. 12.🌈 Why does sunlight make a rainbow through a glass of water? (a) the glass is painted (b) the water is coloured (c) the paper makes colours (d) water splits the light
13. 13.🧺 Do we need a battery cell 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? Which of these is kept the same? (a) brightness of rainbow (b) the amount of water (c) the same glass
15. 15.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a sheet of white paper (c) a magnet (d) a clear glass of water
16. 16.True or false: turmeric powder is needed for the water rainbow. (a) False (b) True
17. 17.🛟 Which rule keeps you safe when working with sunlight? (a) stare at the Sun (b) look at it through glass (c) look at it in a mirror (d) never look at the Sun
18. 18.🧺 Which of these is needed for the water rainbow? (a) bright sunlight (b) a balloon (c) a magnet (d) a battery cell
19. 19.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it floats away (b) it turns brighter (c) the rainbow fades (d) it turns all red
20. 20.⚖️ 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
21. 21.⚖️ 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 change it (b) we measure it (c) we keep it the same
22. 22.True or false: bright sunlight is needed for the water rainbow. (a) False (b) True
23. 23.☀️ What is white sunlight really made of? (a) tiny drops of water (b) tiny bits of dust (c) many colours mixed (d) only yellow light
24. 24.⚖️ 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 time of day (b) the same glass (c) brightness of rainbow (d) the same white paper
25. 25.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a mirror (b) a clear glass of water (c) a sheet of white paper (d) a sunny window
26. 26.⚖️ 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
27. 27.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) snow falling (b) a small rainbow (c) a shadow of ice (d) a magnet
28. 28.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) yeast (b) bright sunlight (c) a sheet of white paper (d) a clear glass of water
29. 29.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same glass”? (a) we measure it (b) we change it (c) we keep it the same
30. 30.🌈 How many colours do we name in a rainbow (VIBGYOR)?
31. 31.True or false: a clear glass of water is needed for the water rainbow. (a) True (b) False
32. 32.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed
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 white paper”? (a) we keep it the same (b) we change it (c) we measure it
34. 34.🧺 Which of these is not needed for the water rainbow? (a) a battery cell (b) a sheet of white paper (c) a clear glass of water (d) a sunny window
35. 35.🌈 In VIBGYOR, what number colour is green?
36. 36.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) orange (b) violet (c) yellow (d) red
37. 37.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) a mirror (c) bright sunlight (d) a clear glass of water
38. 38.⚖️ 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
39. 39.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is the one thing we change. (a) True (b) False
40. 40.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is what we measure. (a) True (b) False

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