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Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 888 · 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.🧂 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
  2. 2.🛟 Who should pour the warm water for the crystal experiment? (a) a friend who is running (b) nobody needs to (c) the youngest child (d) a grown-up
  3. 3.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a mirror (b) warm water (c) a spoon (d) a shallow dish
  4. 4.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is kept the same? (a) sunny or shady place (b) days to see crystals (c) the amount of salt
  5. 5.🧺 Which of these is needed for growing salt crystals? (a) a battery cell (b) warm water (c) yeast (d) a magnet
  6. 6.⚖️ 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
  7. 7.🧈 Can this change be undone: melting butter? (a) cannot be undone (b) can be undone
  8. 8.🧺 Do we need a magnet for growing salt crystals? (a) needed (b) not needed
  9. 9.True or false: a mirror is needed for growing salt crystals. (a) False (b) True
  10. 10.🧂 What shape are table salt crystals under a magnifying glass? (a) tiny stars (b) tiny cubes (c) tiny triangles (d) tiny spheres
  11. 11.⚖️ 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) False (b) True
  12. 12.True or false: turmeric powder is needed for growing salt crystals. (a) False (b) True
  13. 13.🧈 Which of these is a change that can be undone? (a) browning lemon ink (b) milk turning to curd (c) baking a cake (d) melting ice
  14. 14.🧈 Which of these is a change that cannot be undone? (a) freezing water (b) cooking an egg (c) melting ice (d) melting butter
  15. 15.🔍 Which is the odd one out? (a) table salt (b) sugar (c) glucose powder (d) sand
  16. 16.True or false: a shallow dish is not needed for growing salt crystals. (a) False (b) True
  17. 17.True or false: browning lemon ink is a change that cannot be undone. (a) False (b) True
  18. 18.🧂 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
  19. 19.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) a piece of string (c) a spoon (d) a balloon
  20. 20.True or false: a mirror is not needed for growing salt crystals. (a) False (b) True
  21. 21.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is kept the same? (a) sunny or shady place (b) the kind of salt (c) days to see crystals
  22. 22.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a piece of string (b) a spoon (c) a magnet (d) salt
  23. 23.🧂 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
  24. 24.🧂 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  25. 25.🔍 Which is the odd one out? (a) sawdust (b) small pebbles (c) sand (d) baking soda
  26. 26.🧺 Do we need a mirror for growing salt crystals? (a) needed (b) not needed
  27. 27.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) salt (b) a battery cell (c) warm water (d) a shallow dish
  28. 28.True or false: cooking an egg is a change that cannot be undone. (a) False (b) True
  29. 29.True or false: freezing water is a change that can be undone. (a) False (b) True
  30. 30.True or false: a spoon is needed for growing salt crystals. (a) False (b) True
  31. 31.🧺 Do we need a shallow dish for growing salt crystals? (a) needed (b) not needed
  32. 32.📘 What do we call a solution that cannot dissolve any more salt? (a) magnetic (b) frozen (c) empty (d) saturated
  33. 33.True or false: food colour does not dissolve in water. (a) True (b) False
  34. 34.🧂 Which of these dissolves in water? (a) baking soda (b) chalk powder (c) sand (d) small pebbles
  35. 35.🧺 Do we need a battery cell for growing salt crystals? (a) needed (b) not needed
  36. 36.🧂 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
  37. 37.True or false: a magnet is not needed for growing salt crystals. (a) True (b) False
  38. 38.⚖️ 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
  39. 39.🛟 Where should you keep the crystal dish while it dries? (a) in a busy doorway (b) safe from small children (c) on the edge of a table (d) next to the baby
  40. 40.⚖️ 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) True (b) False

Answer key

  1. dissolves in water
  2. a grown-up
  3. a mirror
  4. the amount of salt
  5. warm water
  6. True
  7. can be undone
  8. not needed
  9. False
  10. tiny cubes
  11. True
  12. False
  13. melting ice
  14. cooking an egg
  15. sand
  16. False
  17. True
  18. does not dissolve
  19. a balloon
  20. True
  21. the kind of salt
  22. a magnet
  23. dissolves in water
  24. dissolves in water
  25. baking soda
  26. not needed
  27. a battery cell
  28. True
  29. True
  30. True
  31. needed
  32. saturated
  33. False
  34. baking soda
  35. not needed
  36. dissolves in water
  37. True
  38. we keep it the same
  39. safe from small children
  40. False

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