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Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 802 · 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.True or false: a magnet is needed for growing salt crystals. (a) False (b) True
  2. 2.True or false: small pebbles dissolves in water. (a) True (b) False
  3. 3.🧂 Which of these dissolves in water? (a) small pebbles (b) food colour (c) cooking oil (d) chalk powder
  4. 4.🛟 Where should you keep the crystal dish while it dries? (a) in a busy doorway (b) next to the baby (c) safe from small children (d) on the edge of a table
  5. 5.🧺 Which of these is needed for growing salt crystals? (a) salt (b) a magnet (c) a battery cell (d) turmeric powder
  6. 6.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) turmeric powder (b) warm water (c) a shallow dish (d) a spoon
  7. 7.🧈 Which of these is a change that can be undone? (a) folding paper (b) milk turning to curd (c) rusting iron (d) cooking an egg
  8. 8.🔮 Predict: crystals grow slowly where nobody disturbs them. How big are they? (a) no crystals (b) liquid crystals (c) bigger crystals (d) smaller crystals
  9. 9.🧺 Do we need a spoon for growing salt crystals? (a) needed (b) not needed
  10. 10.🔍 Which is the odd one out? (a) sugar (b) cooking oil (c) table salt (d) baking soda
  11. 11.🛟 Who should pour the warm water for the crystal experiment? (a) nobody needs to (b) the youngest child (c) a grown-up (d) a friend who is running
  12. 12.🧺 Do we need a balloon for growing salt crystals? (a) not needed (b) needed
  13. 13.True or false: a mirror is needed for growing salt crystals. (a) False (b) True
  14. 14.⚖️ 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 kind of salt (b) sunny or shady place (c) days to see crystals (d) the amount of water
  15. 15.🧺 Do we need yeast for growing salt crystals? (a) needed (b) not needed
  16. 16.🧺 Which of these is not needed for growing salt crystals? (a) salt (b) a shallow dish (c) a balloon (d) a piece of string
  17. 17.🧂 Which of these dissolves in water? (a) sand (b) sawdust (c) sugar (d) small pebbles
  18. 18.🧂 Which of these does not dissolve in water? (a) food colour (b) baking soda (c) sugar (d) chalk powder
  19. 19.🧺 Do we need a shallow dish for growing salt crystals? (a) needed (b) not needed
  20. 20.True or false: melting ice is a change that cannot be undone. (a) True (b) False
  21. 21.⚖️ 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
  22. 22.🧈 Can this change be undone: rusting iron? (a) can be undone (b) cannot be undone
  23. 23.⚖️ 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
  24. 24.🧈 Which of these is a change that cannot be undone? (a) baking a cake (b) dissolving salt (c) freezing water (d) folding paper
  25. 25.🧈 Can this change be undone: melting butter? (a) can be undone (b) cannot be undone
  26. 26.🧺 Do we need turmeric powder 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) a spoon (b) salt (c) yeast (d) warm water
  28. 28.🧈 Which of these is a change that can be undone? (a) dissolving salt (b) milk turning to curd (c) rusting iron (d) baking a cake
  29. 29.🧺 Which of these is needed for growing salt crystals? (a) a mirror (b) a shallow dish (c) turmeric powder (d) yeast
  30. 30.🧂 What shape are table salt crystals under a magnifying glass? (a) tiny triangles (b) tiny stars (c) tiny spheres (d) tiny cubes
  31. 31.🧂 Why do crystals appear as the dish dries? (a) salt eats water (b) salt grows roots (c) the dish melts (d) water evaporates
  32. 32.True or false: rusting iron is a change that can be undone. (a) False (b) True
  33. 33.True or false: turmeric powder is needed for growing salt crystals. (a) False (b) True
  34. 34.True or false: food colour dissolves in water. (a) True (b) False
  35. 35.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a piece of string (b) warm water (c) salt (d) a mirror
  36. 36.🌊 How is salt made in salt pans by the sea? (a) salt rains down (b) fish make it (c) sea water evaporates (d) sand is ground up
  37. 37.🧂 Which of these dissolves in water? (a) cooking oil (b) sand (c) small pebbles (d) glucose powder
  38. 38.🧂 Which of these dissolves in water? (a) baking soda (b) small pebbles (c) cooking oil (d) chalk powder
  39. 39.⚖️ 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
  40. 40.🧂 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve

Answer key

  1. False
  2. False
  3. food colour
  4. safe from small children
  5. salt
  6. turmeric powder
  7. folding paper
  8. bigger crystals
  9. needed
  10. cooking oil
  11. a grown-up
  12. not needed
  13. False
  14. sunny or shady place
  15. not needed
  16. a balloon
  17. sugar
  18. chalk powder
  19. needed
  20. False
  21. True
  22. cannot be undone
  23. False
  24. baking a cake
  25. can be undone
  26. not needed
  27. yeast
  28. dissolving salt
  29. a shallow dish
  30. tiny cubes
  31. water evaporates
  32. False
  33. False
  34. True
  35. a mirror
  36. sea water evaporates
  37. glucose powder
  38. baking soda
  39. False
  40. dissolves in water

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