Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 561 · 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.🧂 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
2. 2.🧺 Which of these is not needed for growing salt crystals? (a) warm water (b) salt (c) turmeric powder (d) a spoon
3. 3.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the same dish is what we measure. (a) True (b) False
4. 4.🧈 Which of these is a change that can be undone? (a) cooking an egg (b) rusting iron (c) melting butter (d) baking a cake
5. 5.🛟 Who should pour the warm water for the crystal experiment? (a) nobody needs to (b) a grown-up (c) the youngest child (d) a friend who is running
6. 6.📘 What do we call a solution that cannot dissolve any more salt? (a) frozen (b) magnetic (c) saturated (d) empty
7. 7.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the same dish is the one thing we change. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) food colour (b) glucose powder (c) sand (d) table salt
9. 9.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) salt crystals form (b) it turns to oil (c) it turns to butter (d) sugar crystals form
10. 10.🛟 Where should you keep the crystal dish while it dries? (a) on the edge of a table (b) in a busy doorway (c) safe from small children (d) next to the baby
11. 11.⚖️ 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
12. 12.⚖️ 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 keep it the same (c) we change it
13. 13.True or false: melting butter is a change that cannot be undone. (a) True (b) False
14. 14.🧺 Do we need turmeric powder for growing salt crystals? (a) not needed (b) needed
15. 15.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) warm water (b) a magnet (c) salt (d) a spoon
16. 16.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) a balloon (c) a piece of string (d) warm water
17. 17.True or false: a magnet is needed for growing salt crystals. (a) False (b) True
18. 18.True or false: warm water is not needed for growing salt crystals. (a) True (b) False
19. 19.🧂 Which of these does not dissolve in water? (a) sand (b) sugar (c) table salt (d) food colour
20. 20.⚖️ 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) True (b) False
21. 21.True or false: melting ice is a change that cannot be undone. (a) False (b) True
22. 22.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) salt (b) a shallow dish (c) warm water (d) a mirror
23. 23.True or false: sugar 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? Which of these is the one thing we change? (a) sunny or shady place (b) the amount of salt (c) the amount of water (d) days to see crystals
25. 25.True or false: warm water is needed for growing salt crystals. (a) False (b) True
26. 26.🧈 Can this change be undone: cooking an egg? (a) cannot be undone (b) can be undone
27. 27.🧺 Do we need a spoon for growing salt crystals? (a) not needed (b) needed
28. 28.🧂 Which of these dissolves in water? (a) sawdust (b) sand (c) chalk powder (d) sugar
29. 29.🧈 Can this change be undone: folding paper? (a) can be undone (b) cannot be undone
30. 30.🧺 Which of these is not needed for growing salt crystals? (a) a spoon (b) salt (c) a balloon (d) a piece of string
31. 31.🔍 Which is the odd one out? (a) table salt (b) glucose powder (c) baking soda (d) cooking oil
32. 32.🧈 Which of these is a change that can be undone? (a) cooking an egg (b) dissolving salt (c) rusting iron (d) baking a cake
33. 33.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: days to see crystals is the one thing we change. (a) True (b) False
34. 34.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the amount of water is the one thing we change. (a) True (b) False
35. 35.🧂 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
36. 36.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “sunny or shady place”? (a) we measure it (b) we change it (c) we keep it the same
37. 37.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the amount of water is what we measure. (a) True (b) False
38. 38.🔍 Which is the odd one out? (a) table salt (b) sawdust (c) small pebbles (d) chalk powder
39. 39.True or false: food colour does not dissolve in water. (a) True (b) False
40. 40.🧺 Which of these is needed for growing salt crystals? (a) turmeric powder (b) yeast (c) warm water (d) a battery cell

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