Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 949 · 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) turmeric powder (b) a sunny window (c) yeast (d) a mirror
2. 2.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a magnet (c) a sheet of white paper (d) a balloon
3. 3.🛟 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
4. 4.⚖️ 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) the same window (c) brightness of rainbow (d) the amount of water
5. 5.🌈 In VIBGYOR, what number colour is orange?
6. 6.⚖️ 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
7. 7.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) turmeric powder (c) a clear glass of water (d) a sheet of white paper
8. 8.🧺 Do we need yeast for the water rainbow? (a) not needed (b) needed
9. 9.🛟 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 turns blue (d) so it gets hot
10. 10.⚖️ 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
11. 11.🧺 Which of these is not needed for the water rainbow? (a) a battery cell (b) bright sunlight (c) a sheet of white paper (d) a clear glass of water
12. 12.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) clouds (b) prisms (c) balloons (d) magnets
13. 13.True or false: a clear glass of water is not needed for the water rainbow. (a) False (b) True
14. 14.True or false: yeast is needed for the water rainbow. (a) False (b) True
15. 15.🧺 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) turmeric powder (d) bright sunlight
16. 16.🧺 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) bright sunlight
17. 17.🌈 How many colours do we name in a rainbow (VIBGYOR)?
18. 18.🧺 Do we need a battery cell for the water rainbow? (a) not needed (b) needed
19. 19.☀️ What is white sunlight really made of? (a) tiny drops of water (b) only yellow light (c) many colours mixed (d) tiny bits of dust
20. 20.🌈 In VIBGYOR, what number colour is violet?
21. 21.🧺 Do we need a magnet for the water rainbow? (a) not needed (b) needed
22. 22.True or false: a magnet is not needed for the water rainbow. (a) False (b) True
23. 23.🧺 Do we need bright sunlight for the water rainbow? (a) not needed (b) needed
24. 24.🧺 Do we need a sheet of white paper for the water rainbow? (a) not needed (b) needed
25. 25.⚖️ 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) False (b) True
26. 26.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) a magnet (c) a balloon (d) bright sunlight
27. 27.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) the rainbow fades (b) it turns brighter (c) it floats away (d) it turns all red
28. 28.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a mirror (c) a sunny window (d) a sheet of white paper
29. 29.⚖️ 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) the same glass (c) brightness of rainbow
30. 30.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a clear glass of water (c) a battery cell (d) a mirror
31. 31.🌈 In VIBGYOR, what number colour is green?
32. 32.True or false: a balloon is not needed for the water rainbow. (a) True (b) False
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 what we measure. (a) True (b) False
34. 34.True or false: a mirror is not needed for the water rainbow. (a) False (b) True
35. 35.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) a magnet (c) a sheet of white paper (d) bright sunlight
36. 36.🧺 Do we need a clear glass of water for the water rainbow? (a) not needed (b) needed
37. 37.⚖️ 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
38. 38.⚖️ 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
39. 39.True or false: a sheet of white paper is needed for the water rainbow. (a) False (b) True
40. 40.⚖️ 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

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