Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 243 · 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.⚖️ 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) brightness of rainbow (b) the amount of water (c) the same window (d) the time of day
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 time of day (b) brightness of rainbow (c) the same window (d) the amount of water
3. 3.⚖️ 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
4. 4.⚖️ 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) True (b) False
5. 5.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a clear glass of water (c) a sunny window (d) a mirror
6. 6.True or false: a balloon is needed for the water rainbow. (a) True (b) False
7. 7.True or false: yeast is not needed for the water rainbow. (a) False (b) True
8. 8.True or false: a clear glass of water is needed for the water rainbow. (a) False (b) True
9. 9.True or false: a balloon is not needed for the water rainbow. (a) True (b) False
10. 10.True or false: a sunny window is needed for the water rainbow. (a) False (b) True
11. 11.🔮 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
12. 12.True or false: a sunny window is not needed for the water rainbow. (a) False (b) True
13. 13.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) orange (b) yellow (c) violet (d) red
14. 14.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a balloon (c) bright sunlight (d) a sheet of white paper
15. 15.🛟 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
16. 16.🌈 In VIBGYOR, what number colour is violet?
17. 17.🧺 Do we need a battery cell for the water rainbow? (a) not needed (b) needed
18. 18.🧺 Do we need a mirror for the water rainbow? (a) needed (b) not needed
19. 19.🧺 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 battery cell (d) a sunny window
20. 20.🌈 How many colours do we name in a rainbow (VIBGYOR)?
21. 21.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) balloons (b) magnets (c) clouds (d) prisms
22. 22.⚖️ 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 white paper (c) the amount of water
23. 23.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) yeast (c) a sunny window (d) bright sunlight
24. 24.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a sheet of white paper (c) turmeric powder (d) bright sunlight
25. 25.🧺 Do we need yeast for the water rainbow? (a) not needed (b) needed
26. 26.🧺 Do we need a balloon for the water rainbow? (a) needed (b) not needed
27. 27.True or false: a sheet of white paper is needed for the water rainbow. (a) True (b) False
28. 28.🛟 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
29. 29.True or false: a sheet of white paper is not needed for the water rainbow. (a) True (b) False
30. 30.☀️ What is white sunlight really made of? (a) many colours mixed (b) tiny drops of water (c) tiny bits of dust (d) only yellow light
31. 31.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the time of day is the one thing we change. (a) False (b) True
32. 32.🌈 In VIBGYOR, what number colour is indigo?
33. 33.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
34. 34.⚖️ 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 window (c) the amount of water
35. 35.⚖️ 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
36. 36.True or false: a magnet is not needed for the water rainbow. (a) False (b) True
37. 37.🧺 Which of these is not needed for the water rainbow? (a) a battery cell (b) a clear glass of water (c) a sheet of white paper (d) bright sunlight
38. 38.True or false: a battery cell is not needed for the water rainbow. (a) True (b) False
39. 39.🌈 In VIBGYOR, what number colour is orange?
40. 40.🧺 Which of these is needed for the water rainbow? (a) bright sunlight (b) a battery cell (c) a mirror (d) a balloon

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