Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 63 · 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? What do we do with “the same white paper”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.🌈 How many colours do we name in a rainbow (VIBGYOR)?
3. 3.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) red (b) violet (c) orange (d) yellow
4. 4.🌈 Why does sunlight make a rainbow through a glass of water? (a) the glass is painted (b) water splits the light (c) the water is coloured (d) the paper makes colours
5. 5.True or false: yeast is not needed for the water rainbow. (a) True (b) False
6. 6.🛟 Which rule keeps you safe when working with sunlight? (a) look at it in a mirror (b) never look at the Sun (c) look at it through glass (d) stare at the Sun
7. 7.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a magnet (b) snow falling (c) a small rainbow (d) a shadow of ice
8. 8.🌈 In VIBGYOR, what number colour is violet?
9. 9.🧺 Do we need a sheet of white paper for the water rainbow? (a) not needed (b) needed
10. 10.True or false: a clear glass of water is needed for the water rainbow. (a) False (b) True
11. 11.True or false: turmeric powder is needed for the water rainbow. (a) True (b) False
12. 12.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same white paper is what we measure. (a) False (b) True
13. 13.True or false: a sheet of white paper is not needed for the water rainbow. (a) False (b) True
14. 14.🛟 Why should the glass of water stand on a steady, flat place? (a) so it gets hot (b) so it does not fall (c) so it turns blue (d) so the Sun moves
15. 15.True or false: a sheet of white paper is needed for the water rainbow. (a) False (b) True
16. 16.True or false: a sunny window is not needed for the water rainbow. (a) False (b) True
17. 17.🌈 In VIBGYOR, what number colour is green?
18. 18.⚖️ 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) True (b) False
19. 19.⚖️ 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 change it (b) we keep it the same (c) we measure it
20. 20.True or false: a clear glass of water is not needed for the water rainbow. (a) True (b) False
21. 21.🧺 Do we need bright sunlight for the water rainbow? (a) needed (b) not needed
22. 22.True or false: bright sunlight is needed for the water rainbow. (a) False (b) True
23. 23.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a balloon (b) a sheet of white paper (c) a sunny window (d) bright sunlight
24. 24.True or false: a battery cell is needed for the water rainbow. (a) False (b) True
25. 25.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a sheet of white paper (c) a sunny window (d) a magnet
26. 26.🧺 Which of these is needed for the water rainbow? (a) yeast (b) turmeric powder (c) a clear glass of water (d) a magnet
27. 27.🧺 Do we need a battery cell for the water rainbow? (a) not needed (b) needed
28. 28.☀️ What is white sunlight really made of? (a) only yellow light (b) tiny bits of dust (c) many colours mixed (d) tiny drops of water
29. 29.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) bright sunlight (c) a sheet of white paper (d) a magnet
30. 30.⚖️ 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 measure it (b) we keep it the same (c) we change it
31. 31.🧺 Do we need a mirror for the water rainbow? (a) not needed (b) needed
32. 32.True or false: a balloon is needed for the water rainbow. (a) True (b) False
33. 33.True or false: a balloon is not needed for the water rainbow. (a) True (b) False
34. 34.🌦️ To see a rainbow in the sky, where must the Sun be? (a) under the ground (b) in front of you (c) behind you (d) straight above you
35. 35.⚖️ 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) the same window (b) brightness of rainbow (c) the amount of water (d) the same glass
36. 36.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) prisms (b) clouds (c) balloons (d) magnets
37. 37.⚖️ 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) True (b) False
38. 38.🌈 In VIBGYOR, what number colour is red?
39. 39.⚖️ 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 glass
40. 40.🧺 Which of these is needed for the water rainbow? (a) a sunny window (b) a battery cell (c) a balloon (d) yeast

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