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Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 79 · 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.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) yeast (b) a piece of string (c) a shallow dish (d) salt
  2. 2.True or false: sugar dissolves in water. (a) False (b) True
  3. 3.🧈 Can this change be undone: folding paper? (a) cannot be undone (b) can be undone
  4. 4.🧂 Which of these dissolves in water? (a) table salt (b) small pebbles (c) sawdust (d) chalk powder
  5. 5.True or false: browning lemon ink is a change that can be undone. (a) False (b) True
  6. 6.🧈 Which of these is a change that can be undone? (a) milk turning to curd (b) browning lemon ink (c) melting butter (d) baking a cake
  7. 7.⚖️ 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 change it (b) we measure it (c) we keep it the same
  8. 8.True or false: a spoon is needed for growing salt crystals. (a) True (b) False
  9. 9.🧂 Which of these dissolves in water? (a) small pebbles (b) glucose powder (c) chalk powder (d) sand
  10. 10.🛟 Who should pour the warm water for the crystal experiment? (a) a grown-up (b) nobody needs to (c) the youngest child (d) a friend who is running
  11. 11.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “the kind of salt”? (a) we measure it (b) we change it (c) we keep it the same
  12. 12.🧂 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
  13. 13.🧺 Do we need a battery cell for growing salt crystals? (a) not needed (b) needed
  14. 14.🧺 Do we need a balloon for growing salt crystals? (a) needed (b) not needed
  15. 15.🧺 Which of these is needed for growing salt crystals? (a) a magnet (b) turmeric powder (c) a battery cell (d) a spoon
  16. 16.True or false: table salt does not dissolve in water. (a) True (b) False
  17. 17.🧺 Do we need a shallow dish for growing salt crystals? (a) not needed (b) needed
  18. 18.🧈 Which of these is a change that cannot be undone? (a) melting butter (b) folding paper (c) browning lemon ink (d) melting ice
  19. 19.🛟 Where should you keep the crystal dish while it dries? (a) in a busy doorway (b) on the edge of a table (c) safe from small children (d) next to the baby
  20. 20.🧂 Which of these does not dissolve in water? (a) glucose powder (b) sugar (c) sawdust (d) baking soda
  21. 21.🧺 Which of these is needed for growing salt crystals? (a) yeast (b) a magnet (c) a battery cell (d) a piece of string
  22. 22.True or false: a mirror is needed for growing salt crystals. (a) False (b) True
  23. 23.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) warm water (b) a spoon (c) turmeric powder (d) salt
  24. 24.True or false: table salt dissolves in water. (a) False (b) True
  25. 25.🧺 Which of these is not needed for growing salt crystals? (a) salt (b) a spoon (c) yeast (d) a shallow dish
  26. 26.🧈 Which of these is a change that can be undone? (a) freezing water (b) rusting iron (c) browning lemon ink (d) baking a cake
  27. 27.🧺 Do we need yeast for growing salt crystals? (a) not needed (b) needed
  28. 28.🧂 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
  29. 29.🧺 Do we need a piece of string for growing salt crystals? (a) needed (b) not needed
  30. 30.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the kind of salt is kept the same. (a) True (b) False
  31. 31.🧂 Why do we stir in salt until no more will dissolve? (a) to make it very salty (b) to change its colour (c) to make it fizz (d) to cool the water
  32. 32.True or false: baking soda does not dissolve in water. (a) True (b) False
  33. 33.🔍 Which is the odd one out? (a) sawdust (b) chalk powder (c) sand (d) food colour
  34. 34.📘 What do we call a solution that cannot dissolve any more salt? (a) magnetic (b) empty (c) frozen (d) saturated
  35. 35.True or false: freezing water is a change that cannot be undone. (a) True (b) False
  36. 36.🧺 Do we need a magnet for growing salt crystals? (a) needed (b) not needed
  37. 37.🧺 Do we need a mirror for growing salt crystals? (a) not needed (b) needed
  38. 38.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a magnet (b) a shallow dish (c) salt (d) a spoon
  39. 39.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “days to see crystals”? (a) we measure it (b) we keep it the same (c) we change it
  40. 40.⚖️ 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 keep it the same (c) we measure it

Answer key

  1. yeast
  2. True
  3. can be undone
  4. table salt
  5. False
  6. melting butter
  7. we keep it the same
  8. True
  9. glucose powder
  10. a grown-up
  11. we keep it the same
  12. dissolves in water
  13. not needed
  14. not needed
  15. a spoon
  16. False
  17. needed
  18. browning lemon ink
  19. safe from small children
  20. sawdust
  21. a piece of string
  22. False
  23. turmeric powder
  24. True
  25. yeast
  26. freezing water
  27. not needed
  28. does not dissolve
  29. needed
  30. True
  31. to make it very salty
  32. False
  33. food colour
  34. saturated
  35. False
  36. not needed
  37. not needed
  38. a magnet
  39. we measure it
  40. we keep it the same

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