Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 179 · 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.🧺 Do we need a sheet of white paper for the water rainbow? (a) not needed (b) needed
2. 2.🧺 Do we need yeast for the water rainbow? (a) needed (b) not needed
3. 3.🧺 Which of these is not needed for the water rainbow? (a) a balloon (b) a clear glass of water (c) a sheet of white paper (d) a sunny window
4. 4.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a shadow of ice (b) a magnet (c) snow falling (d) a small rainbow
5. 5.⚖️ 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 amount of water (c) the same window (d) brightness of rainbow
6. 6.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) turmeric powder (c) a clear glass of water (d) bright sunlight
7. 7.🌈 How many colours do we name in a rainbow (VIBGYOR)?
8. 8.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a mirror (c) bright sunlight (d) a magnet
9. 9.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a battery cell (b) a sheet of white paper (c) a sunny window (d) a clear glass of water
10. 10.🛟 Why should the glass of water stand on a steady, flat place? (a) so the Sun moves (b) so it gets hot (c) so it turns blue (d) so it does not fall
11. 11.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) green (b) red (c) blue (d) violet
12. 12.📘 What do we call light bending as it passes from air into water? (a) evaporation (b) reflection (c) refraction (d) magnetism
13. 13.🧺 Do we need bright sunlight for the water rainbow? (a) needed (b) not needed
14. 14.🌈 In VIBGYOR, what number colour is green?
15. 15.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
16. 16.True or false: yeast is needed for the water rainbow. (a) False (b) True
17. 17.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same window is what we measure. (a) True (b) False
18. 18.⚖️ 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
19. 19.🧺 Which of these is not needed for the water rainbow? (a) turmeric powder (b) a sheet of white paper (c) bright sunlight (d) a sunny window
20. 20.True or false: a balloon is needed for the water rainbow. (a) True (b) False
21. 21.⚖️ 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 measure it (b) we keep it the same (c) we change it
22. 22.🔮 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
23. 23.☀️ What is white sunlight really made of? (a) many colours mixed (b) tiny bits of dust (c) only yellow light (d) tiny drops of water
24. 24.🌈 In VIBGYOR, what number colour is orange?
25. 25.🌦️ To see a rainbow in the sky, where must the Sun be? (a) behind you (b) under the ground (c) in front of you (d) straight above you
26. 26.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is kept the same. (a) False (b) True
27. 27.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) violet (b) yellow (c) orange (d) red
28. 28.🌈 In VIBGYOR, what number colour is red?
29. 29.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a balloon (b) a sunny window (c) a clear glass of water (d) bright sunlight
30. 30.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) bright sunlight (c) a sunny window (d) a magnet
31. 31.🛟 Which rule keeps you safe when working with sunlight? (a) look at it through glass (b) look at it in a mirror (c) stare at the Sun (d) never look at the Sun
32. 32.⚖️ 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
33. 33.⚖️ 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) True (b) False
34. 34.🌈 In VIBGYOR, what number colour is violet?
35. 35.True or false: a balloon is not needed for the water rainbow. (a) True (b) False
36. 36.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a mirror (c) a sunny window (d) a clear glass of water
37. 37.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a battery cell (c) a sunny window (d) a magnet
38. 38.True or false: a sheet of white paper is needed for the water rainbow. (a) False (b) True
39. 39.🧺 Do we need a clear glass of water for the water rainbow? (a) needed (b) not needed
40. 40.🌈 Why does sunlight make a rainbow through a glass of water? (a) the water is coloured (b) the paper makes colours (c) the glass is painted (d) water splits the light

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids