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Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 93 · 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.🧂 Which of these dissolves in water? (a) table salt (b) cooking oil (c) sawdust (d) small pebbles
  2. 2.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: sunny or shady place is the one thing we change. (a) True (b) False
  3. 3.📘 What do we call a solution that cannot dissolve any more salt? (a) empty (b) magnetic (c) frozen (d) saturated
  4. 4.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a spoon (b) salt (c) a balloon (d) a shallow dish
  5. 5.🔍 Which is the odd one out? (a) table salt (b) sawdust (c) small pebbles (d) cooking oil
  6. 6.🧂 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
  7. 7.🧺 Which of these is not needed for growing salt crystals? (a) a battery cell (b) a shallow dish (c) warm water (d) a piece of string
  8. 8.🧺 Which of these is not needed for growing salt crystals? (a) a shallow dish (b) warm water (c) salt (d) a mirror
  9. 9.True or false: turmeric powder is needed for growing salt crystals. (a) True (b) False
  10. 10.True or false: small pebbles does not dissolve in water. (a) False (b) True
  11. 11.True or false: browning lemon ink is a change that can be undone. (a) True (b) False
  12. 12.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the kind of salt is what we measure. (a) True (b) False
  13. 13.🧂 Which of these does not dissolve in water? (a) sugar (b) table salt (c) sand (d) food colour
  14. 14.🧺 Which of these is not needed for growing salt crystals? (a) a piece of string (b) turmeric powder (c) warm water (d) a shallow dish
  15. 15.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a spoon (b) a shallow dish (c) warm water (d) yeast
  16. 16.True or false: sugar does not dissolve in water. (a) True (b) False
  17. 17.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: sunny or shady place is what we measure. (a) False (b) True
  18. 18.🧈 Can this change be undone: dissolving salt? (a) cannot be undone (b) can be undone
  19. 19.🧈 Which of these is a change that can be undone? (a) browning lemon ink (b) baking a cake (c) melting ice (d) milk turning to curd
  20. 20.🔍 Which is the odd one out? (a) food colour (b) table salt (c) small pebbles (d) glucose powder
  21. 21.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) warm water (b) a spoon (c) a battery cell (d) a shallow dish
  22. 22.🧺 Do we need a battery cell for growing salt crystals? (a) not needed (b) needed
  23. 23.🧺 Do we need a piece of string for growing salt crystals? (a) not needed (b) needed
  24. 24.🧺 Which of these is not needed for growing salt crystals? (a) a shallow dish (b) a balloon (c) salt (d) warm water
  25. 25.⚖️ 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 change it (c) we keep it the same
  26. 26.True or false: sawdust dissolves in water. (a) True (b) False
  27. 27.🧂 Which of these does not dissolve in water? (a) table salt (b) sawdust (c) food colour (d) baking soda
  28. 28.🧈 Can this change be undone: milk turning to curd? (a) cannot be undone (b) can be undone
  29. 29.True or false: a magnet is needed for growing salt crystals. (a) False (b) True
  30. 30.🧺 Do we need warm water for growing salt crystals? (a) not needed (b) needed
  31. 31.🧺 Which of these is needed for growing salt crystals? (a) warm water (b) a balloon (c) a battery cell (d) turmeric powder
  32. 32.🔍 Which is the odd one out? (a) sand (b) sugar (c) chalk powder (d) cooking oil
  33. 33.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “the amount of water”? (a) we change it (b) we measure it (c) we keep it the same
  34. 34.🌊 How is salt made in salt pans by the sea? (a) fish make it (b) salt rains down (c) sand is ground up (d) sea water evaporates
  35. 35.🧂 Which of these does not dissolve in water? (a) chalk powder (b) baking soda (c) sugar (d) food colour
  36. 36.True or false: salt is not needed for growing salt crystals. (a) False (b) True
  37. 37.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) warm water (b) a shallow dish (c) turmeric powder (d) a spoon
  38. 38.🧈 Can this change be undone: rusting iron? (a) can be undone (b) cannot be undone
  39. 39.🧈 Which of these is a change that cannot be undone? (a) melting ice (b) dissolving salt (c) browning lemon ink (d) freezing water
  40. 40.🧂 Which of these dissolves in water? (a) sand (b) chalk powder (c) glucose powder (d) sawdust

Answer key

  1. table salt
  2. True
  3. saturated
  4. a balloon
  5. table salt
  6. dissolves in water
  7. a battery cell
  8. a mirror
  9. False
  10. True
  11. False
  12. False
  13. sand
  14. turmeric powder
  15. yeast
  16. False
  17. False
  18. can be undone
  19. melting ice
  20. small pebbles
  21. a battery cell
  22. not needed
  23. needed
  24. a balloon
  25. we change it
  26. False
  27. sawdust
  28. cannot be undone
  29. False
  30. needed
  31. warm water
  32. sugar
  33. we keep it the same
  34. sea water evaporates
  35. chalk powder
  36. False
  37. turmeric powder
  38. cannot be undone
  39. browning lemon ink
  40. glucose powder

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