Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 154 · 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.🧈 Can this change be undone: folding paper? (a) cannot be undone (b) can be undone
2. 2.🔍 Which is the odd one out? (a) table salt (b) sugar (c) cooking oil (d) food colour
3. 3.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) warm water (b) a shallow dish (c) a balloon (d) a piece of string
4. 4.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the same dish is kept the same. (a) False (b) True
5. 5.True or false: small pebbles dissolves in water. (a) True (b) False
6. 6.🧂 Why do crystals appear as the dish dries? (a) salt grows roots (b) salt eats water (c) the dish melts (d) water evaporates
7. 7.🧂 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
8. 8.🧂 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
9. 9.⚖️ 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
10. 10.⚖️ 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 same dish (b) sunny or shady place (c) the amount of water (d) days to see crystals
11. 11.🧂 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
12. 12.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the amount of salt is kept the same. (a) False (b) True
13. 13.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) salt (b) a magnet (c) a piece of string (d) a shallow dish
14. 14.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: days to see crystals is kept the same. (a) True (b) False
15. 15.🧈 Which of these is a change that cannot be undone? (a) folding paper (b) cooking an egg (c) melting butter (d) freezing water
16. 16.🧺 Do we need warm water for growing salt crystals? (a) not needed (b) needed
17. 17.True or false: baking a cake is a change that cannot be undone. (a) False (b) True
18. 18.🧈 Can this change be undone: baking a cake? (a) can be undone (b) cannot be undone
19. 19.⚖️ 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 keep it the same (b) we measure it (c) we change it
20. 20.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) it turns to butter (b) salt crystals form (c) it turns to oil (d) sugar crystals form
21. 21.🛟 Who should pour the warm water for the crystal experiment? (a) the youngest child (b) a friend who is running (c) nobody needs to (d) a grown-up
22. 22.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is what we measure? (a) days to see crystals (b) the amount of salt (c) the kind of salt (d) sunny or shady place
23. 23.🧂 Which of these dissolves in water? (a) cooking oil (b) food colour (c) sand (d) chalk powder
24. 24.🧈 Which of these is a change that can be undone? (a) baking a cake (b) freezing water (c) milk turning to curd (d) cooking an egg
25. 25.🧺 Do we need a battery cell for growing salt crystals? (a) needed (b) not needed
26. 26.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a battery cell (b) a spoon (c) warm water (d) a piece of string
27. 27.🧺 Which of these is not needed for growing salt crystals? (a) a piece of string (b) warm water (c) turmeric powder (d) salt
28. 28.🔍 Which is the odd one out? (a) sand (b) small pebbles (c) cooking oil (d) baking soda
29. 29.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a piece of string (b) yeast (c) a spoon (d) a shallow dish
30. 30.True or false: a spoon is not needed for growing salt crystals. (a) True (b) False
31. 31.True or false: a balloon is not needed for growing salt crystals. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) sand (b) glucose powder (c) chalk powder (d) small pebbles
33. 33.🧺 Which of these is not needed for growing salt crystals? (a) a shallow dish (b) a balloon (c) a spoon (d) salt
34. 34.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a piece of string (b) a shallow dish (c) warm water (d) a mirror
35. 35.🧈 Which of these is a change that cannot be undone? (a) dissolving salt (b) folding paper (c) freezing water (d) browning lemon ink
36. 36.True or false: baking a cake is a change that can be undone. (a) False (b) True
37. 37.🧺 Which of these is not needed for growing salt crystals? (a) a battery cell (b) a shallow dish (c) salt (d) warm water
38. 38.True or false: rusting iron is a change that cannot be undone. (a) True (b) False
39. 39.True or false: chalk powder does not dissolve in water. (a) False (b) True
40. 40.🧺 Do we need salt for growing salt crystals? (a) needed (b) not needed

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