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Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 361 · 40 questions
TalentJR

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.

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  1. 1.⚖️ 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) brightness of rainbow (b) the time of day (c) the same glass (d) the amount of water
  2. 2.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is the one thing we change. (a) True (b) False
  3. 3.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a clear glass of water (c) a sunny window (d) a balloon
  4. 4.True or false: a magnet is needed for the water rainbow. (a) True (b) False
  5. 5.⚖️ 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 window
  6. 6.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a shadow of ice (b) a magnet (c) snow falling (d) a small rainbow
  7. 7.🌈 How many colours do we name in a rainbow (VIBGYOR)?
  8. 8.True or false: a clear glass of water is not needed for the water rainbow. (a) False (b) True
  9. 9.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) yellow (b) red (c) violet (d) orange
  10. 10.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns brighter (b) it floats away (c) it turns all red (d) the rainbow fades
  11. 11.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) turmeric powder (c) a sheet of white paper (d) a sunny window
  12. 12.True or false: a magnet is not needed for the water rainbow. (a) True (b) False
  13. 13.⚖️ 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
  14. 14.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) yeast (b) a sheet of white paper (c) bright sunlight (d) a sunny window
  15. 15.🧺 Do we need a clear glass of water for the water rainbow? (a) needed (b) not needed
  16. 16.🌦️ 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
  17. 17.True or false: a balloon is not needed for the water rainbow. (a) False (b) True
  18. 18.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a mirror (c) bright sunlight (d) a sunny window
  19. 19.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a magnet (b) a clear glass of water (c) a sunny window (d) bright sunlight
  20. 20.True or false: a battery cell is needed for the water rainbow. (a) False (b) True
  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) turmeric powder (b) a sunny window (c) bright sunlight (d) a clear glass of water
  23. 23.🧺 Which of these is needed for the water rainbow? (a) a mirror (b) yeast (c) a battery cell (d) bright sunlight
  24. 24.⚖️ 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
  25. 25.🛟 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
  26. 26.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the time of day”? (a) we keep it the same (b) we change it (c) we measure it
  27. 27.⚖️ 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 time of day (b) the same glass (c) the same window (d) brightness of rainbow
  28. 28.🧺 Which of these is needed for the water rainbow? (a) a clear glass of water (b) turmeric powder (c) a balloon (d) a battery cell
  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 kept the same. (a) False (b) True
  30. 30.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) green (b) red (c) blue (d) violet
  31. 31.🛟 Why should the glass of water stand on a steady, flat place? (a) so it does not fall (b) so the Sun moves (c) so it turns blue (d) so it gets hot
  32. 32.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) bright sunlight (c) yeast (d) a sunny window
  33. 33.⚖️ 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) the amount of water (c) brightness of rainbow
  34. 34.🌈 Why does sunlight make a rainbow through a glass of water? (a) the water is coloured (b) the paper makes colours (c) water splits the light (d) the glass is painted
  35. 35.🌈 In VIBGYOR, what number colour is red?
  36. 36.⚖️ 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
  37. 37.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) a sheet of white paper (c) a battery cell (d) a clear glass of water
  38. 38.☀️ What is white sunlight really made of? (a) many colours mixed (b) only yellow light (c) tiny bits of dust (d) tiny drops of water
  39. 39.True or false: a battery cell is not needed for the water rainbow. (a) False (b) True
  40. 40.True or false: yeast is not needed for the water rainbow. (a) False (b) True

Answer key

  1. the amount of water
  2. False
  3. a balloon
  4. False
  5. the same window
  6. a small rainbow
  7. 7
  8. False
  9. violet
  10. the rainbow fades
  11. turmeric powder
  12. True
  13. False
  14. yeast
  15. needed
  16. behind you
  17. True
  18. a mirror
  19. a magnet
  20. False
  21. True
  22. turmeric powder
  23. bright sunlight
  24. we measure it
  25. never look at the Sun
  26. we keep it the same
  27. brightness of rainbow
  28. a clear glass of water
  29. True
  30. red
  31. so it does not fall
  32. yeast
  33. the time of day
  34. water splits the light
  35. 7
  36. True
  37. a battery cell
  38. many colours mixed
  39. True
  40. True

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