Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 392 · 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.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a sheet of white paper (c) a clear glass of water (d) a mirror
2. 2.📘 What do we call light bending as it passes from air into water? (a) reflection (b) magnetism (c) refraction (d) evaporation
3. 3.True or false: a balloon is needed for the water rainbow. (a) False (b) True
4. 4.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a sunny window (c) yeast (d) bright sunlight
5. 5.🧺 Which of these is needed for the water rainbow? (a) a sheet of white paper (b) turmeric powder (c) a balloon (d) a battery cell
6. 6.True or false: turmeric powder is not needed for the water rainbow. (a) False (b) True
7. 7.🧺 Do we need a mirror for the water rainbow? (a) needed (b) not needed
8. 8.🧺 Do we need yeast for the water rainbow? (a) not needed (b) needed
9. 9.🛟 Which rule keeps you safe when working with sunlight? (a) look at it through glass (b) stare at the Sun (c) never look at the Sun (d) look at it in a mirror
10. 10.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) turmeric powder (c) yeast (d) a clear glass of water
11. 11.⚖️ 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 time of day (b) the amount of water (c) brightness of rainbow (d) the same white paper
12. 12.🧺 Do we need turmeric powder for the water rainbow? (a) needed (b) not needed
13. 13.True or false: a sheet of white paper is not needed for the water rainbow. (a) False (b) True
14. 14.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) turmeric powder (b) a sheet of white paper (c) bright sunlight (d) a clear glass of water
15. 15.⚖️ 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) False (b) True
16. 16.⚖️ 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 amount of water (c) the same white paper (d) the same glass
17. 17.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a magnet (c) bright sunlight (d) a sheet of white paper
18. 18.True or false: a mirror is needed for the water rainbow. (a) True (b) False
19. 19.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a balloon (c) bright sunlight (d) a sunny window
20. 20.🌈 How many colours do we name in a rainbow (VIBGYOR)?
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 glass”? (a) we measure it (b) we keep it the same (c) we change it
22. 22.🌈 Why does sunlight make a rainbow through a glass of water? (a) the water is coloured (b) the glass is painted (c) the paper makes colours (d) water splits the light
23. 23.⚖️ 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
24. 24.🌦️ To see a rainbow in the sky, where must the Sun be? (a) in front of you (b) under the ground (c) straight above you (d) behind you
25. 25.⚖️ 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) False (b) True
26. 26.⚖️ 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
27. 27.True or false: yeast is not needed for the water rainbow. (a) False (b) True
28. 28.⚖️ 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
29. 29.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same white paper is the one thing we change. (a) True (b) False
30. 30.True or false: a clear glass of water is not needed for the water rainbow. (a) True (b) False
31. 31.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns all red (b) it turns brighter (c) it floats away (d) the rainbow fades
32. 32.☀️ 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
33. 33.🧺 Do we need a clear glass of water for the water rainbow? (a) needed (b) not needed
34. 34.True or false: a sheet of white paper is needed for the water rainbow. (a) True (b) False
35. 35.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) a sheet of white paper (c) a balloon (d) a clear glass of water
36. 36.🛟 Why should the glass of water stand on a steady, flat place? (a) so it turns blue (b) so the Sun moves (c) so it does not fall (d) so it gets hot
37. 37.True or false: a battery cell is not needed for the water rainbow. (a) True (b) False
38. 38.🧺 Which of these is needed for the water rainbow? (a) a sunny window (b) a battery cell (c) yeast (d) a mirror
39. 39.True or false: yeast is needed for the water rainbow. (a) False (b) True
40. 40.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) prisms (b) magnets (c) clouds (d) balloons

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