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Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 736 · 40 questions
TalentJR

What you do (Dry out, crystals in): 1. An adult pours warm water into a cup. 2. Stir in salt, a spoon at a time, until no more dissolves. 3. Pour the salty water into a shallow dish and lay a string in it. 4. Leave it on a sunny windowsill, out of reach of small children, and check each day.

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  1. 1.True or false: folding paper is a change that can be undone. (a) True (b) False
  2. 2.🧂 Which of these dissolves in water? (a) small pebbles (b) baking soda (c) cooking oil (d) sawdust
  3. 3.True or false: a piece of string is not needed for growing salt crystals. (a) True (b) False
  4. 4.True or false: chalk powder dissolves in water. (a) True (b) False
  5. 5.True or false: warm water is needed for growing salt crystals. (a) False (b) True
  6. 6.🧺 Do we need turmeric powder for growing salt crystals? (a) needed (b) not needed
  7. 7.🧂 Why do we stir in salt until no more will dissolve? (a) to make it very salty (b) to cool the water (c) to change its colour (d) to make it fizz
  8. 8.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) salt (b) a shallow dish (c) a spoon (d) yeast
  9. 9.🧈 Which of these is a change that can be undone? (a) milk turning to curd (b) melting ice (c) browning lemon ink (d) baking a cake
  10. 10.🧺 Which of these is needed for growing salt crystals? (a) yeast (b) a spoon (c) a balloon (d) a mirror
  11. 11.🧈 Which of these is a change that can be undone? (a) milk turning to curd (b) cooking an egg (c) folding paper (d) rusting iron
  12. 12.🔍 Which is the odd one out? (a) food colour (b) small pebbles (c) chalk powder (d) sand
  13. 13.🧂 Which of these dissolves in water? (a) sand (b) sawdust (c) small pebbles (d) glucose powder
  14. 14.🧺 Which of these is not needed for growing salt crystals? (a) warm water (b) a shallow dish (c) a piece of string (d) a balloon
  15. 15.True or false: turmeric powder is needed for growing salt crystals. (a) True (b) False
  16. 16.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a battery cell (b) a piece of string (c) salt (d) warm water
  17. 17.🧺 Do we need yeast for growing salt crystals? (a) not needed (b) needed
  18. 18.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is what we measure? (a) days to see crystals (b) the kind of salt (c) the amount of water (d) sunny or shady place
  19. 19.🧺 Do we need a piece of string for growing salt crystals? (a) not needed (b) needed
  20. 20.🧂 Which of these does not dissolve in water? (a) glucose powder (b) table salt (c) baking soda (d) cooking oil
  21. 21.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) warm water (b) a spoon (c) turmeric powder (d) a piece of string
  22. 22.🧺 Which of these is not needed for growing salt crystals? (a) salt (b) a piece of string (c) a spoon (d) a magnet
  23. 23.True or false: sawdust does not dissolve in water. (a) False (b) True
  24. 24.True or false: a spoon is needed for growing salt crystals. (a) False (b) True
  25. 25.True or false: chalk powder does not dissolve in water. (a) False (b) True
  26. 26.🧺 Do we need a balloon for growing salt crystals? (a) needed (b) not needed
  27. 27.True or false: warm water is not needed for growing salt crystals. (a) True (b) False
  28. 28.True or false: a battery cell is needed for growing salt crystals. (a) True (b) False
  29. 29.🧈 Can this change be undone: melting ice? (a) can be undone (b) cannot be undone
  30. 30.🧺 Do we need a spoon for growing salt crystals? (a) needed (b) not needed
  31. 31.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is the one thing we change? (a) sunny or shady place (b) days to see crystals (c) the same dish (d) the amount of salt
  32. 32.🧺 Do we need a magnet for growing salt crystals? (a) needed (b) not needed
  33. 33.🧂 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
  34. 34.🧺 Do we need salt for growing salt crystals? (a) needed (b) not needed
  35. 35.🧈 Which of these is a change that cannot be undone? (a) cooking an egg (b) freezing water (c) melting butter (d) folding paper
  36. 36.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “the amount of salt”? (a) we measure it (b) we change it (c) we keep it the same
  37. 37.True or false: cooking oil does not dissolve in water. (a) False (b) True
  38. 38.🧂 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
  39. 39.🔍 Which is the odd one out? (a) chalk powder (b) table salt (c) sand (d) cooking oil
  40. 40.🧺 Which of these is needed for growing salt crystals? (a) salt (b) a magnet (c) a balloon (d) turmeric powder

Answer key

  1. True
  2. baking soda
  3. False
  4. False
  5. True
  6. not needed
  7. to make it very salty
  8. yeast
  9. melting ice
  10. a spoon
  11. folding paper
  12. food colour
  13. glucose powder
  14. a balloon
  15. False
  16. a battery cell
  17. not needed
  18. days to see crystals
  19. needed
  20. cooking oil
  21. turmeric powder
  22. a magnet
  23. True
  24. True
  25. True
  26. not needed
  27. False
  28. False
  29. can be undone
  30. needed
  31. sunny or shady place
  32. not needed
  33. does not dissolve
  34. needed
  35. cooking an egg
  36. we keep it the same
  37. True
  38. does not dissolve
  39. table salt
  40. salt

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