Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 376 · 40 questions

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.

1. 1.True or false: a spoon is not needed for growing salt crystals. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) sand (b) small pebbles (c) chalk powder (d) table salt
3. 3.🧂 Which of these does not dissolve in water? (a) baking soda (b) glucose powder (c) cooking oil (d) sugar
4. 4.🧺 Which of these is not needed for growing salt crystals? (a) yeast (b) a shallow dish (c) warm water (d) a piece of string
5. 5.🧂 Why do we stir in salt until no more will dissolve? (a) to cool the water (b) to make it fizz (c) to change its colour (d) to make it very salty
6. 6.🛟 Who should pour the warm water for the crystal experiment? (a) a friend who is running (b) the youngest child (c) a grown-up (d) nobody needs to
7. 7.🧈 Which of these is a change that cannot be undone? (a) melting butter (b) folding paper (c) baking a cake (d) melting ice
8. 8.⚖️ 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) the same dish (c) days to see crystals (d) sunny or shady place
9. 9.⚖️ 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
10. 10.🧂 Which of these dissolves in water? (a) sawdust (b) sand (c) chalk powder (d) sugar
11. 11.🧂 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
12. 12.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a piece of string (b) a battery cell (c) salt (d) a spoon
13. 13.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) salt (c) turmeric powder (d) warm water
14. 14.🧈 Which of these is a change that cannot be undone? (a) folding paper (b) freezing water (c) dissolving salt (d) rusting iron
15. 15.🔍 Which is the odd one out? (a) chalk powder (b) sawdust (c) sugar (d) sand
16. 16.🧺 Which of these is not needed for growing salt crystals? (a) a piece of string (b) a shallow dish (c) a balloon (d) salt
17. 17.⚖️ 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) sunny or shady place (c) the kind of salt
18. 18.🧺 Which of these is not needed for growing salt crystals? (a) salt (b) a shallow dish (c) turmeric powder (d) a piece of string
19. 19.🔮 Predict: you cover the dish so no water can escape. What happens? (a) it fizzes (b) it turns sweet (c) few or no crystals (d) crystals grow faster
20. 20.⚖️ 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
21. 21.🧈 Which of these is a change that cannot be undone? (a) freezing water (b) folding paper (c) melting ice (d) milk turning to curd
22. 22.🧂 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
23. 23.🧂 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
24. 24.⚖️ 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 keep it the same (b) we measure it (c) we change it
25. 25.🧺 Do we need a battery cell for growing salt crystals? (a) not needed (b) needed
26. 26.⚖️ 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 measure it (b) we change it (c) we keep it the same
27. 27.🌊 How is salt made in salt pans by the sea? (a) sea water evaporates (b) fish make it (c) salt rains down (d) sand is ground up
28. 28.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: sunny or shady place is the one thing we change. (a) False (b) True
29. 29.🧂 Which of these dissolves in water? (a) small pebbles (b) glucose powder (c) chalk powder (d) cooking oil
30. 30.🧂 Which of these dissolves in water? (a) sand (b) small pebbles (c) baking soda (d) chalk powder
31. 31.🧺 Which of these is needed for growing salt crystals? (a) a magnet (b) salt (c) a balloon (d) a battery cell
32. 32.True or false: a shallow dish is not needed for growing salt crystals. (a) True (b) False
33. 33.🧂 Which of these does not dissolve in water? (a) baking soda (b) sugar (c) small pebbles (d) table salt
34. 34.True or false: a magnet is not needed for growing salt crystals. (a) False (b) True
35. 35.🧈 Can this change be undone: melting ice? (a) cannot be undone (b) can be undone
36. 36.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) warm water (c) a spoon (d) a magnet
37. 37.⚖️ 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) sunny or shady place (c) the amount of water
38. 38.⚖️ 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
39. 39.🔍 Which is the odd one out? (a) cooking oil (b) sand (c) baking soda (d) small pebbles
40. 40.🧂 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve

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