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Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 363 · 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 is needed for growing salt crystals? (a) a mirror (b) a spoon (c) a magnet (d) a balloon
  2. 2.🧺 Do we need a magnet for growing salt crystals? (a) needed (b) not needed
  3. 3.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a piece of string (b) salt (c) turmeric powder (d) a shallow dish
  4. 4.🧂 Which of these does not dissolve in water? (a) table salt (b) glucose powder (c) food colour (d) cooking oil
  5. 5.🧺 Do we need a spoon for growing salt crystals? (a) not needed (b) needed
  6. 6.🌊 How is salt made in salt pans by the sea? (a) fish make it (b) salt rains down (c) sea water evaporates (d) sand is ground up
  7. 7.True or false: small pebbles does not dissolve in water. (a) True (b) False
  8. 8.🔍 Which is the odd one out? (a) sugar (b) baking soda (c) sand (d) glucose powder
  9. 9.🔍 Which is the odd one out? (a) table salt (b) sugar (c) cooking oil (d) glucose powder
  10. 10.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a spoon (b) a magnet (c) a piece of string (d) salt
  11. 11.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) salt (b) a balloon (c) a shallow dish (d) warm water
  12. 12.⚖️ 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) False (b) True
  13. 13.🧺 Which of these is not needed for growing salt crystals? (a) a spoon (b) salt (c) a magnet (d) a shallow dish
  14. 14.🧈 Which of these is a change that cannot be undone? (a) melting butter (b) browning lemon ink (c) melting ice (d) freezing water
  15. 15.🧂 What shape are table salt crystals under a magnifying glass? (a) tiny stars (b) tiny cubes (c) tiny triangles (d) tiny spheres
  16. 16.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is kept the same? (a) days to see crystals (b) the amount of salt (c) sunny or shady place
  17. 17.True or false: chalk powder dissolves in water. (a) True (b) False
  18. 18.True or false: sawdust does not dissolve in water. (a) True (b) False
  19. 19.🧺 Which of these is needed for growing salt crystals? (a) a balloon (b) a battery cell (c) a mirror (d) salt
  20. 20.True or false: salt is needed for growing salt crystals. (a) True (b) False
  21. 21.🔮 Predict: you cover the dish so no water can escape. What happens? (a) few or no crystals (b) it fizzes (c) crystals grow faster (d) it turns sweet
  22. 22.⚖️ 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) days to see crystals (b) the same dish (c) the amount of water (d) sunny or shady place
  23. 23.True or false: melting butter is a change that cannot be undone. (a) True (b) False
  24. 24.🧂 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
  25. 25.True or false: a piece of string is needed for growing salt crystals. (a) False (b) True
  26. 26.True or false: turmeric powder is needed for growing salt crystals. (a) False (b) True
  27. 27.🔍 Which is the odd one out? (a) sawdust (b) food colour (c) small pebbles (d) cooking oil
  28. 28.🧂 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
  29. 29.🧂 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
  30. 30.🧺 Do we need a battery cell for growing salt crystals? (a) not needed (b) needed
  31. 31.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: days to see crystals is what we measure. (a) True (b) False
  32. 32.⚖️ 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 amount of water (c) days to see crystals
  33. 33.True or false: a magnet is not needed for growing salt crystals. (a) True (b) False
  34. 34.🛟 Where should you keep the crystal dish while it dries? (a) safe from small children (b) on the edge of a table (c) in a busy doorway (d) next to the baby
  35. 35.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) salt crystals form (b) it turns to butter (c) sugar crystals form (d) it turns to oil
  36. 36.True or false: a spoon is not needed for growing salt crystals. (a) True (b) False
  37. 37.True or false: sand dissolves in water. (a) True (b) False
  38. 38.🧺 Which of these is not needed for growing salt crystals? (a) salt (b) a piece of string (c) a battery cell (d) a spoon
  39. 39.🧈 Can this change be undone: cooking an egg? (a) can be undone (b) cannot be undone
  40. 40.🧈 Can this change be undone: rusting iron? (a) can be undone (b) cannot be undone

Answer key

  1. a spoon
  2. not needed
  3. turmeric powder
  4. cooking oil
  5. needed
  6. sea water evaporates
  7. True
  8. sand
  9. cooking oil
  10. a magnet
  11. a balloon
  12. True
  13. a magnet
  14. browning lemon ink
  15. tiny cubes
  16. the amount of salt
  17. False
  18. True
  19. salt
  20. True
  21. few or no crystals
  22. sunny or shady place
  23. False
  24. dissolves in water
  25. True
  26. False
  27. food colour
  28. dissolves in water
  29. dissolves in water
  30. not needed
  31. True
  32. the amount of water
  33. True
  34. safe from small children
  35. sugar crystals form
  36. False
  37. False
  38. a battery cell
  39. cannot be undone
  40. cannot be undone

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