Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 483 · 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.True or false: turmeric powder is not needed for the water rainbow. (a) False (b) True
2. 2.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a sheet of white paper (c) a mirror (d) a magnet
3. 3.🌈 How many colours do we name in a rainbow (VIBGYOR)?
4. 4.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) the rainbow fades (b) it turns all red (c) it floats away (d) it turns brighter
5. 5.🧺 Which of these is not needed for the water rainbow? (a) a magnet (b) a sheet of white paper (c) bright sunlight (d) a clear glass of water
6. 6.🛟 Why should the glass of water stand on a steady, flat place? (a) so it gets hot (b) so it turns blue (c) so it does not fall (d) so the Sun moves
7. 7.🌈 In VIBGYOR, what number colour is red?
8. 8.True or false: a sheet of white paper is not needed for the water rainbow. (a) True (b) False
9. 9.⚖️ 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 keep it the same (c) we change it
10. 10.🧺 Do we need a sheet of white paper for the water rainbow? (a) not needed (b) needed
11. 11.🌈 In VIBGYOR, what number colour is indigo?
12. 12.🛟 Which rule keeps you safe when working with sunlight? (a) stare at the Sun (b) look at it in a mirror (c) look at it through glass (d) never look at the Sun
13. 13.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a mirror (c) a clear glass of water (d) a sunny window
14. 14.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) snow falling (b) a small rainbow (c) a magnet (d) a shadow of ice
15. 15.☀️ What is white sunlight really made of? (a) many colours mixed (b) tiny drops of water (c) only yellow light (d) tiny bits of dust
16. 16.⚖️ 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 time of day
17. 17.🧺 Do we need a balloon for the water rainbow? (a) not needed (b) needed
18. 18.🧺 Do we need a mirror for the water rainbow? (a) not needed (b) needed
19. 19.🧺 Do we need turmeric powder for the water rainbow? (a) needed (b) not needed
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 same glass (c) the amount of water
21. 21.True or false: yeast is needed for the water rainbow. (a) True (b) False
22. 22.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) magnets (b) clouds (c) balloons (d) prisms
23. 23.⚖️ 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 measure it (c) we change it
24. 24.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a clear glass of water (c) bright sunlight (d) turmeric powder
25. 25.⚖️ 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
26. 26.🌈 In VIBGYOR, what number colour is violet?
27. 27.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) a battery cell (c) bright sunlight (d) a mirror
28. 28.🧺 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 sheet of white paper (d) a battery cell
29. 29.🧺 Do we need yeast for the water rainbow? (a) needed (b) not needed
30. 30.⚖️ 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
31. 31.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a clear glass of water (c) bright sunlight (d) a balloon
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 what we measure. (a) False (b) True
33. 33.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a clear glass of water (c) a battery cell (d) a sunny window
34. 34.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a mirror (c) a sheet of white paper (d) a sunny window
35. 35.⚖️ 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
36. 36.True or false: a clear glass of water is needed for the water rainbow. (a) True (b) False
37. 37.🧺 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
38. 38.🌈 In VIBGYOR, what number colour is blue?
39. 39.🌈 In VIBGYOR, what number colour is green?
40. 40.⚖️ 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) False (b) True

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