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Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 780 · 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.

NameDateTime takenScore ___ / 40
  1. 1.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “the same dish”? (a) we measure it (b) we keep it the same (c) we change it
  2. 2.🧺 Do we need a balloon for growing salt crystals? (a) needed (b) not needed
  3. 3.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) turmeric powder (c) warm water (d) salt
  4. 4.🧈 Which of these is a change that cannot be undone? (a) melting butter (b) freezing water (c) baking a cake (d) melting ice
  5. 5.⚖️ 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) the amount of water (b) the same dish (c) the amount of salt (d) sunny or shady place
  6. 6.🔍 Which is the odd one out? (a) glucose powder (b) cooking oil (c) sand (d) sawdust
  7. 7.🧺 Which of these is needed for growing salt crystals? (a) turmeric powder (b) a mirror (c) salt (d) a magnet
  8. 8.⚖️ 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 keep it the same (b) we measure it (c) we change it
  9. 9.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the amount of water is kept the same. (a) True (b) False
  10. 10.🧈 Can this change be undone: melting butter? (a) cannot be undone (b) can be undone
  11. 11.True or false: sand does not dissolve in water. (a) False (b) True
  12. 12.True or false: milk turning to curd is a change that can be undone. (a) True (b) False
  13. 13.🧈 Can this change be undone: cooking an egg? (a) cannot be undone (b) can be undone
  14. 14.True or false: dissolving salt is a change that can be undone. (a) False (b) True
  15. 15.🔍 Which is the odd one out? (a) sawdust (b) sugar (c) cooking oil (d) small pebbles
  16. 16.True or false: sand dissolves in water. (a) False (b) True
  17. 17.🧈 Which of these is a change that can be undone? (a) milk turning to curd (b) browning lemon ink (c) cooking an egg (d) folding paper
  18. 18.True or false: table salt does not dissolve in water. (a) True (b) False
  19. 19.🧺 Do we need yeast for growing salt crystals? (a) needed (b) not needed
  20. 20.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a spoon (b) a magnet (c) a shallow dish (d) warm water
  21. 21.True or false: melting ice is a change that cannot be undone. (a) True (b) False
  22. 22.🧈 Can this change be undone: freezing water? (a) can be undone (b) cannot be undone
  23. 23.🛟 Who should pour the warm water for the crystal experiment? (a) the youngest child (b) a friend who is running (c) nobody needs to (d) a grown-up
  24. 24.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) warm water (b) a battery cell (c) a shallow dish (d) salt
  25. 25.📘 What do we call a solution that cannot dissolve any more salt? (a) magnetic (b) empty (c) saturated (d) frozen
  26. 26.🧂 Which of these dissolves in water? (a) chalk powder (b) cooking oil (c) sugar (d) sawdust
  27. 27.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) warm water (c) salt (d) a mirror
  28. 28.🧂 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  29. 29.True or false: table salt dissolves in water. (a) True (b) False
  30. 30.🧺 Which of these is needed for growing salt crystals? (a) a spoon (b) turmeric powder (c) a magnet (d) a balloon
  31. 31.🧺 Which of these is not needed for growing salt crystals? (a) salt (b) yeast (c) a piece of string (d) warm water
  32. 32.True or false: glucose powder dissolves in water. (a) True (b) False
  33. 33.🧈 Which of these is a change that cannot be undone? (a) melting butter (b) rusting iron (c) melting ice (d) dissolving salt
  34. 34.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “sunny or shady place”? (a) we measure it (b) we keep it the same (c) we change it
  35. 35.🌊 How is salt made in salt pans by the sea? (a) fish make it (b) sand is ground up (c) sea water evaporates (d) salt rains down
  36. 36.🧂 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  37. 37.🧺 Do we need salt for growing salt crystals? (a) not needed (b) needed
  38. 38.True or false: a mirror is not needed for growing salt crystals. (a) False (b) True
  39. 39.🧂 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
  40. 40.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) salt (b) a balloon (c) warm water (d) a shallow dish

Answer key

  1. we keep it the same
  2. not needed
  3. turmeric powder
  4. baking a cake
  5. sunny or shady place
  6. glucose powder
  7. salt
  8. we keep it the same
  9. True
  10. can be undone
  11. True
  12. False
  13. cannot be undone
  14. True
  15. sugar
  16. False
  17. folding paper
  18. False
  19. not needed
  20. a magnet
  21. False
  22. can be undone
  23. a grown-up
  24. a battery cell
  25. saturated
  26. sugar
  27. a mirror
  28. dissolves in water
  29. True
  30. a spoon
  31. yeast
  32. True
  33. rusting iron
  34. we change it
  35. sea water evaporates
  36. dissolves in water
  37. needed
  38. True
  39. does not dissolve
  40. a balloon

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