Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 961 · 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.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns brighter (b) it floats away (c) it turns all red (d) the rainbow fades
2. 2.📘 What do we call light bending as it passes from air into water? (a) evaporation (b) reflection (c) magnetism (d) refraction
3. 3.🧺 Which of these is needed for the water rainbow? (a) a clear glass of water (b) a magnet (c) turmeric powder (d) a mirror
4. 4.🌈 How many colours do we name in a rainbow (VIBGYOR)?
5. 5.🧺 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 battery cell
6. 6.True or false: a magnet is needed for the water rainbow. (a) True (b) False
7. 7.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a sheet of white paper (c) a sunny window (d) a balloon
8. 8.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a battery cell (b) a sunny window (c) a sheet of white paper (d) bright sunlight
9. 9.🌈 In VIBGYOR, what number colour is orange?
10. 10.True or false: a mirror is needed for the water rainbow. (a) True (b) False
11. 11.🧺 Which of these is not needed for the water rainbow? (a) a balloon (b) a sunny window (c) a sheet of white paper (d) a clear glass of water
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 magnet (d) a shadow of ice
13. 13.🌈 In VIBGYOR, what number colour is blue?
14. 14.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) turmeric powder (b) a sunny window (c) a clear glass of water (d) a sheet of white paper
15. 15.🧺 Do we need a balloon for the water rainbow? (a) not needed (b) needed
16. 16.🌈 In VIBGYOR, what number colour is red?
17. 17.🧺 Which of these is not needed for the water rainbow? (a) a mirror (b) a sunny window (c) bright sunlight (d) a clear glass of water
18. 18.🧺 Do we need a sheet of white paper for the water rainbow? (a) not needed (b) needed
19. 19.🛟 Why should the glass of water stand on a steady, flat place? (a) so it turns blue (b) so it gets hot (c) so the Sun moves (d) so it does not fall
20. 20.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a sunny window (c) yeast (d) a clear glass of water
21. 21.True or false: yeast is not needed for the water rainbow. (a) False (b) True
22. 22.🌈 In VIBGYOR, what number colour is yellow?
23. 23.⚖️ 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) True (b) False
24. 24.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) prisms (b) clouds (c) balloons (d) magnets
25. 25.⚖️ 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 change it (c) we measure it
26. 26.⚖️ 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) brightness of rainbow (c) the time of day
27. 27.🛟 Which rule keeps you safe when working with sunlight? (a) never look at the Sun (b) stare at the Sun (c) look at it through glass (d) look at it in a mirror
28. 28.⚖️ 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 glass (b) the time of day (c) brightness of rainbow (d) the amount of water
29. 29.🧺 Do we need a sunny window for the water rainbow? (a) not needed (b) needed
30. 30.🧺 Which of these is needed for the water rainbow? (a) yeast (b) turmeric powder (c) a battery cell (d) a sheet of white paper
31. 31.☀️ What is white sunlight really made of? (a) tiny bits of dust (b) many colours mixed (c) only yellow light (d) tiny drops of water
32. 32.🌈 In VIBGYOR, what number colour is indigo?
33. 33.⚖️ 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 white paper
34. 34.🧺 Do we need bright sunlight for the water rainbow? (a) needed (b) not needed
35. 35.🧺 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) bright sunlight (d) a magnet
36. 36.True or false: a sunny window is needed for the water rainbow. (a) False (b) True
37. 37.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same window is kept the same. (a) False (b) True
38. 38.🧺 Which of these is needed for the water rainbow? (a) yeast (b) a battery cell (c) a balloon (d) bright sunlight
39. 39.🧺 Do we need turmeric powder for the water rainbow? (a) not needed (b) needed
40. 40.True or false: a sheet of white paper is needed for the water rainbow. (a) False (b) True

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