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Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 967 · 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.🧺 Do we need a balloon for growing salt crystals? (a) needed (b) not needed
  2. 2.🧺 Which of these is not needed for growing salt crystals? (a) salt (b) a shallow dish (c) warm water (d) a battery cell
  3. 3.🧈 Which of these is a change that can be undone? (a) milk turning to curd (b) baking a cake (c) folding paper (d) cooking an egg
  4. 4.True or false: table salt dissolves in water. (a) True (b) False
  5. 5.🧂 Which of these dissolves in water? (a) sand (b) chalk powder (c) food colour (d) small pebbles
  6. 6.🧂 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
  7. 7.🛟 Who should pour the warm water for the crystal experiment? (a) nobody needs to (b) a friend who is running (c) the youngest child (d) a grown-up
  8. 8.True or false: a piece of string is not needed for growing salt crystals. (a) False (b) True
  9. 9.⚖️ 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 keep it the same (c) we measure it
  10. 10.🔍 Which is the odd one out? (a) table salt (b) baking soda (c) cooking oil (d) sugar
  11. 11.True or false: salt is needed for growing salt crystals. (a) True (b) False
  12. 12.🧈 Can this change be undone: melting butter? (a) can be undone (b) cannot be undone
  13. 13.🧂 Which of these dissolves in water? (a) small pebbles (b) sand (c) sugar (d) chalk powder
  14. 14.⚖️ 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 keep it the same (b) we change it (c) we measure it
  15. 15.🧂 Why do we stir in salt until no more will dissolve? (a) to cool the water (b) to make it fizz (c) to make it very salty (d) to change its colour
  16. 16.🧂 Why do crystals appear as the dish dries? (a) the dish melts (b) salt grows roots (c) water evaporates (d) salt eats water
  17. 17.🧂 Which of these dissolves in water? (a) sand (b) glucose powder (c) small pebbles (d) chalk powder
  18. 18.🧈 Which of these is a change that cannot be undone? (a) melting ice (b) melting butter (c) dissolving salt (d) rusting iron
  19. 19.True or false: dissolving salt is a change that cannot be undone. (a) True (b) False
  20. 20.True or false: melting butter is a change that cannot be undone. (a) False (b) True
  21. 21.🧺 Do we need a spoon for growing salt crystals? (a) needed (b) not needed
  22. 22.🛟 Where should you keep the crystal dish while it dries? (a) safe from small children (b) next to the baby (c) on the edge of a table (d) in a busy doorway
  23. 23.True or false: food colour does not dissolve in water. (a) True (b) False
  24. 24.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: sunny or shady place is kept the same. (a) False (b) True
  25. 25.🔍 Which is the odd one out? (a) baking soda (b) sugar (c) table salt (d) chalk powder
  26. 26.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) salt (b) a shallow dish (c) warm water (d) yeast
  27. 27.🔍 Which is the odd one out? (a) small pebbles (b) sawdust (c) sand (d) sugar
  28. 28.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a spoon (b) turmeric powder (c) a piece of string (d) warm water
  29. 29.True or false: melting butter is a change that can be undone. (a) True (b) False
  30. 30.True or false: melting ice is a change that cannot be undone. (a) True (b) False
  31. 31.True or false: cooking an egg is a change that can be undone. (a) False (b) True
  32. 32.🧺 Which of these is not needed for growing salt crystals? (a) yeast (b) a shallow dish (c) a spoon (d) warm water
  33. 33.⚖️ 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
  34. 34.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a piece of string (b) a spoon (c) a mirror (d) a shallow dish
  35. 35.🧂 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
  36. 36.🧺 Which of these is not needed for growing salt crystals? (a) salt (b) a piece of string (c) a spoon (d) a mirror
  37. 37.🧈 Can this change be undone: melting ice? (a) can be undone (b) cannot be undone
  38. 38.🧂 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
  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 change it (c) we keep it the same
  40. 40.🧺 Do we need turmeric powder for growing salt crystals? (a) not needed (b) needed

Answer key

  1. not needed
  2. a battery cell
  3. folding paper
  4. True
  5. food colour
  6. does not dissolve
  7. a grown-up
  8. False
  9. we keep it the same
  10. cooking oil
  11. True
  12. can be undone
  13. sugar
  14. we keep it the same
  15. to make it very salty
  16. water evaporates
  17. glucose powder
  18. rusting iron
  19. False
  20. False
  21. needed
  22. safe from small children
  23. False
  24. False
  25. chalk powder
  26. yeast
  27. sugar
  28. turmeric powder
  29. True
  30. False
  31. False
  32. yeast
  33. True
  34. a mirror
  35. does not dissolve
  36. a mirror
  37. can be undone
  38. dissolves in water
  39. we measure it
  40. not needed

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