Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 528 · 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.🌈 How many colours do we name in a rainbow (VIBGYOR)?
2. 2.🛟 Which rule keeps you safe when working with sunlight? (a) stare at the Sun (b) never look at the Sun (c) look at it in a mirror (d) look at it through glass
3. 3.🌦️ To see a rainbow in the sky, where must the Sun be? (a) straight above you (b) behind you (c) under the ground (d) in front of you
4. 4.🛟 Why should the glass of water stand on a steady, flat place? (a) so it gets hot (b) so it turns blue (c) so the Sun moves (d) so it does not fall
5. 5.🧺 Which of these is needed for the water rainbow? (a) a mirror (b) a magnet (c) a clear glass of water (d) a balloon
6. 6.🌈 Why does sunlight make a rainbow through a glass of water? (a) the water is coloured (b) the glass is painted (c) water splits the light (d) the paper makes colours
7. 7.🧺 Which of these is needed for the water rainbow? (a) a sunny window (b) a magnet (c) a mirror (d) turmeric powder
8. 8.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is what we measure? (a) brightness of rainbow (b) the same white paper (c) the time of day (d) the same glass
9. 9.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a sunny window (c) a clear glass of water (d) a battery cell
10. 10.True or false: bright sunlight is needed for the water rainbow. (a) False (b) True
11. 11.⚖️ 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 time of day (b) brightness of rainbow (c) the amount of water
12. 12.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) turmeric powder (c) a clear glass of water (d) bright sunlight
13. 13.🌈 In VIBGYOR, what number colour is blue?
14. 14.📘 What do we call light bending as it passes from air into water? (a) reflection (b) evaporation (c) magnetism (d) refraction
15. 15.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a shadow of ice (b) a magnet (c) a small rainbow (d) snow falling
16. 16.☀️ What is white sunlight really made of? (a) only yellow light (b) tiny bits of dust (c) tiny drops of water (d) many colours mixed
17. 17.🧺 Do we need a sheet of white paper for the water rainbow? (a) not needed (b) needed
18. 18.⚖️ 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) the same glass (c) the time of day (d) the amount of water
19. 19.🧺 Do we need bright sunlight for the water rainbow? (a) not needed (b) needed
20. 20.🧺 Do we need a sunny window for the water rainbow? (a) not needed (b) needed
21. 21.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a sheet of white paper (c) turmeric powder (d) a clear glass of water
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) the amount of water (b) brightness of rainbow (c) the same glass
23. 23.True or false: a sunny window is not needed for the water rainbow. (a) True (b) False
24. 24.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is the one thing we change. (a) False (b) True
25. 25.⚖️ 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
26. 26.⚖️ 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
27. 27.🧺 Do we need a clear glass of water for the water rainbow? (a) not needed (b) needed
28. 28.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same glass”? (a) we measure it (b) we change it (c) we keep it the same
29. 29.True or false: a clear glass of water is needed for the water rainbow. (a) True (b) False
30. 30.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a sunny window (c) yeast (d) a sheet of white paper
31. 31.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is what we measure. (a) True (b) False
32. 32.🧺 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 mirror (d) a clear glass of water
33. 33.True or false: yeast is needed for the water rainbow. (a) True (b) False
34. 34.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) yeast (c) bright sunlight (d) a sheet of white paper
35. 35.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) yeast (c) a sheet of white paper (d) a battery cell
36. 36.⚖️ 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
37. 37.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) clouds (b) balloons (c) prisms (d) magnets
38. 38.⚖️ 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
39. 39.True or false: a battery cell is not needed for the water rainbow. (a) False (b) True
40. 40.🧺 Do we need yeast for the water rainbow? (a) needed (b) not needed

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