Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 135 · 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.🌦️ To see a rainbow in the sky, where must the Sun be? (a) in front of you (b) straight above you (c) behind you (d) under the ground
2. 2.🌈 How many colours do we name in a rainbow (VIBGYOR)?
3. 3.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) bright sunlight (c) a mirror (d) turmeric powder
4. 4.⚖️ 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 white paper (b) the time of day (c) the same window (d) the amount of water
5. 5.🌈 Why does sunlight make a rainbow through a glass of water? (a) the glass is painted (b) the water is coloured (c) the paper makes colours (d) water splits the light
6. 6.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a shadow of ice (b) a small rainbow (c) snow falling (d) a magnet
7. 7.🧺 Which of these is not needed for the water rainbow? (a) turmeric powder (b) bright sunlight (c) a sheet of white paper (d) a clear glass of water
8. 8.⚖️ 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
9. 9.True or false: a sheet of white paper is not needed for the water rainbow. (a) True (b) False
10. 10.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a sheet of white paper (c) bright sunlight (d) a mirror
11. 11.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) orange (b) violet (c) yellow (d) red
12. 12.🧺 Which of these is needed for the water rainbow? (a) a clear glass of water (b) a battery cell (c) turmeric powder (d) yeast
13. 13.🧺 Do we need yeast for the water rainbow? (a) needed (b) not needed
14. 14.True or false: a magnet is not needed for the water rainbow. (a) False (b) True
15. 15.⚖️ 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
16. 16.🧺 Do we need a balloon for the water rainbow? (a) needed (b) not needed
17. 17.⚖️ 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
18. 18.🌈 In VIBGYOR, what number colour is blue?
19. 19.🧺 Do we need a clear glass of water for the water rainbow? (a) needed (b) not needed
20. 20.🧺 Do we need turmeric powder for the water rainbow? (a) not needed (b) needed
21. 21.⚖️ 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 same glass (b) the amount of water (c) brightness of rainbow
22. 22.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a sheet of white paper (c) bright sunlight (d) yeast
23. 23.⚖️ 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
24. 24.🧺 Do we need bright sunlight for the water rainbow? (a) not needed (b) needed
25. 25.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) prisms (b) magnets (c) balloons (d) clouds
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 kept the same. (a) False (b) True
27. 27.⚖️ 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
28. 28.🧺 Do we need a sunny window for the water rainbow? (a) needed (b) not needed
29. 29.🧺 Which of these is not needed for the water rainbow? (a) a mirror (b) a sunny window (c) bright sunlight (d) a sheet of white paper
30. 30.🌈 In VIBGYOR, what number colour is yellow?
31. 31.True or false: a balloon is not needed for the water rainbow. (a) True (b) False
32. 32.⚖️ 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 window (b) the amount of water (c) the same glass (d) brightness of rainbow
33. 33.🌈 In VIBGYOR, what number colour is indigo?
34. 34.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) a magnet (c) a sheet of white paper (d) turmeric powder
35. 35.☀️ What is white sunlight really made of? (a) only yellow light (b) tiny drops of water (c) many colours mixed (d) tiny bits of dust
36. 36.🧺 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) turmeric powder (d) bright sunlight
37. 37.🌈 In VIBGYOR, what number colour is violet?
38. 38.True or false: turmeric powder is not needed for the water rainbow. (a) True (b) False
39. 39.🌈 In VIBGYOR, what number colour is red?
40. 40.⚖️ 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

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