Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 441 · 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? True or false: the same window is what we measure. (a) True (b) False
2. 2.🌈 In VIBGYOR, what number colour is orange?
3. 3.🛟 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
4. 4.⚖️ 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) the same white paper (c) brightness of rainbow
5. 5.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns brighter (b) it floats away (c) the rainbow fades (d) it turns all red
6. 6.⚖️ 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
7. 7.🌦️ To see a rainbow in the sky, where must the Sun be? (a) straight above you (b) in front of you (c) behind you (d) under the ground
8. 8.True or false: a sunny window is needed for the water rainbow. (a) False (b) True
9. 9.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a battery cell (b) bright sunlight (c) a clear glass of water (d) a sunny window
10. 10.🧺 Do we need a sunny window for the water rainbow? (a) needed (b) not needed
11. 11.🌈 How many colours do we name in a rainbow (VIBGYOR)?
12. 12.☀️ What is white sunlight really made of? (a) tiny drops of water (b) many colours mixed (c) only yellow light (d) tiny bits of dust
13. 13.True or false: a mirror is not needed for the water rainbow. (a) False (b) True
14. 14.⚖️ 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 change it (b) we keep it the same (c) we measure it
15. 15.🛟 Which rule keeps you safe when working with sunlight? (a) look at it through glass (b) never look at the Sun (c) look at it in a mirror (d) stare at the Sun
16. 16.True or false: a sunny window is not needed for the water rainbow. (a) True (b) False
17. 17.True or false: a balloon is needed for the water rainbow. (a) True (b) False
18. 18.⚖️ 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 change it (c) we keep it the same
19. 19.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) clouds (b) balloons (c) prisms (d) magnets
20. 20.🧺 Which of these is not needed for the water rainbow? (a) a balloon (b) a sheet of white paper (c) a sunny window (d) bright sunlight
21. 21.⚖️ 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) True (b) False
22. 22.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a sheet of white paper (c) yeast (d) bright sunlight
23. 23.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) violet (b) blue (c) green (d) red
24. 24.⚖️ 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 keep it the same (b) we measure it (c) we change it
25. 25.⚖️ 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 time of day (c) the same white paper (d) the amount of water
26. 26.⚖️ 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
27. 27.⚖️ 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 glass (b) brightness of rainbow (c) the same white paper (d) the amount of water
28. 28.🌈 In VIBGYOR, what number colour is yellow?
29. 29.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is what we measure. (a) True (b) False
30. 30.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) bright sunlight (c) a mirror (d) a clear glass of water
31. 31.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a magnet (c) a sunny window (d) yeast
32. 32.True or false: a mirror is needed for the water rainbow. (a) True (b) False
33. 33.True or false: bright sunlight is needed for the water rainbow. (a) True (b) False
34. 34.🧺 Do we need turmeric powder for the water rainbow? (a) not needed (b) needed
35. 35.🧺 Which of these is needed for the water rainbow? (a) a clear glass of water (b) turmeric powder (c) a mirror (d) a balloon
36. 36.🧺 Do we need a balloon for the water rainbow? (a) needed (b) not needed
37. 37.🌈 In VIBGYOR, what number colour is violet?
38. 38.True or false: a sheet of white paper is not needed for the water rainbow. (a) False (b) True
39. 39.🌈 In VIBGYOR, what number colour is green?
40. 40.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “brightness of rainbow”? (a) we change it (b) we keep it the same (c) we measure it

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