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Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 558 · 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 what we measure? (a) the time of day (b) the amount of water (c) brightness of rainbow (d) the same glass
  2. 2.🛟 Which rule keeps you safe when working with sunlight? (a) stare at the Sun (b) look at it through glass (c) never look at the Sun (d) look at it in a mirror
  3. 3.⚖️ 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) brightness of rainbow (c) the amount of water (d) the same glass
  4. 4.🧺 Do we need a clear glass of water for the water rainbow? (a) needed (b) not needed
  5. 5.⚖️ 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 change it (b) we keep it the same (c) we measure it
  6. 6.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) bright sunlight (c) a clear glass of water (d) yeast
  7. 7.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) clouds (b) prisms (c) balloons (d) magnets
  8. 8.🌈 How many colours do we name in a rainbow (VIBGYOR)?
  9. 9.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same window is the one thing we change. (a) True (b) False
  10. 10.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) red (b) yellow (c) orange (d) violet
  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 amount of water (b) the time of day (c) brightness of rainbow
  12. 12.True or false: a battery cell is not needed for the water rainbow. (a) False (b) True
  13. 13.⚖️ 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 keep it the same (b) we change it (c) we measure it
  14. 14.🌈 Why does sunlight make a rainbow through a glass of water? (a) the glass is painted (b) the paper makes colours (c) water splits the light (d) the water is coloured
  15. 15.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) the rainbow fades (b) it turns brighter (c) it turns all red (d) it floats away
  16. 16.⚖️ 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 white paper
  17. 17.🧺 Which of these is not needed for the water rainbow? (a) turmeric powder (b) a sunny window (c) a sheet of white paper (d) bright sunlight
  18. 18.🧺 Which of these is not needed for the water rainbow? (a) a battery cell (b) a sheet of white paper (c) a sunny window (d) bright sunlight
  19. 19.⚖️ 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
  20. 20.⚖️ 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 measure it (c) we change it
  21. 21.True or false: a sheet of white paper is needed for the water rainbow. (a) True (b) False
  22. 22.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a clear glass of water (c) a mirror (d) a sheet of white paper
  23. 23.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a mirror (c) turmeric powder (d) a clear glass of water
  24. 24.🧺 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 sunny window (d) a magnet
  25. 25.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) turmeric powder (b) bright sunlight (c) a sunny window (d) a clear glass of water
  26. 26.🧺 Do we need a balloon for the water rainbow? (a) needed (b) not needed
  27. 27.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a small rainbow (b) snow falling (c) a shadow of ice (d) a magnet
  28. 28.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a battery cell (b) a sunny window (c) a sheet of white paper (d) bright sunlight
  29. 29.🛟 Why should the glass of water stand on a steady, flat place? (a) so it turns blue (b) so it does not fall (c) so it gets hot (d) so the Sun moves
  30. 30.🌈 In VIBGYOR, what number colour is orange?
  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? True or false: the same white paper is what we measure. (a) False (b) True
  33. 33.🧺 Do we need yeast for the water rainbow? (a) not needed (b) needed
  34. 34.⚖️ 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
  35. 35.⚖️ 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 window
  36. 36.🌈 In VIBGYOR, what number colour is red?
  37. 37.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a sunny window (c) a balloon (d) a clear glass of water
  38. 38.🧺 Which of these is needed for the water rainbow? (a) a mirror (b) a sunny window (c) a balloon (d) yeast
  39. 39.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) a clear glass of water (c) bright sunlight (d) a magnet
  40. 40.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a balloon (c) a sunny window (d) bright sunlight

Answer key

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

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