Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 973 · 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: baking a cake is a change that can be undone. (a) True (b) False
2. 2.🧺 Do we need a magnet for growing salt crystals? (a) needed (b) not needed
3. 3.🧺 Do we need yeast for growing salt crystals? (a) not needed (b) needed
4. 4.🧈 Which of these is a change that can be undone? (a) freezing water (b) cooking an egg (c) browning lemon ink (d) milk turning to curd
5. 5.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a battery cell (b) a shallow dish (c) a spoon (d) salt
6. 6.🧺 Which of these is needed for growing salt crystals? (a) yeast (b) a spoon (c) a magnet (d) a balloon
7. 7.True or false: melting ice is a change that cannot be undone. (a) False (b) True
8. 8.🌊 How is salt made in salt pans by the sea? (a) salt rains down (b) sea water evaporates (c) fish make it (d) sand is ground up
9. 9.🔮 Predict: you cover the dish so no water can escape. What happens? (a) crystals grow faster (b) it turns sweet (c) it fizzes (d) few or no crystals
10. 10.⚖️ 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) False (b) True
11. 11.⚖️ 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
12. 12.🛟 Who should pour the warm water for the crystal experiment? (a) a grown-up (b) the youngest child (c) nobody needs to (d) a friend who is running
13. 13.🛟 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
14. 14.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is what we measure? (a) the amount of salt (b) days to see crystals (c) sunny or shady place (d) the amount of water
15. 15.🧺 Which of these is not needed for growing salt crystals? (a) a mirror (b) a spoon (c) salt (d) a piece of string
16. 16.🧺 Which of these is not needed for growing salt crystals? (a) warm water (b) a piece of string (c) salt (d) a magnet
17. 17.🧈 Can this change be undone: rusting iron? (a) cannot be undone (b) can be undone
18. 18.🧺 Do we need a spoon for growing salt crystals? (a) not needed (b) needed
19. 19.True or false: yeast is not needed for growing salt crystals. (a) False (b) True
20. 20.True or false: a spoon is not needed for growing salt crystals. (a) True (b) False
21. 21.True or false: folding paper is a change that can be undone. (a) False (b) True
22. 22.🧺 Which of these is not needed for growing salt crystals? (a) salt (b) a shallow dish (c) a piece of string (d) a balloon
23. 23.⚖️ 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) False (b) True
24. 24.⚖️ 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) True (b) False
25. 25.🧈 Which of these is a change that can be undone? (a) rusting iron (b) baking a cake (c) milk turning to curd (d) folding paper
26. 26.⚖️ 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) False (b) True
27. 27.⚖️ 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
28. 28.📘 What do we call a solution that cannot dissolve any more salt? (a) frozen (b) saturated (c) magnetic (d) empty
29. 29.🧂 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
30. 30.🧂 Which of these dissolves in water? (a) cooking oil (b) small pebbles (c) sugar (d) chalk powder
31. 31.🧈 Can this change be undone: folding paper? (a) cannot be undone (b) can be undone
32. 32.True or false: chalk powder does not dissolve in water. (a) True (b) False
33. 33.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) salt (c) a magnet (d) a piece of string
34. 34.🧺 Do we need a shallow dish for growing salt crystals? (a) needed (b) not needed
35. 35.⚖️ 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 change it (b) we measure it (c) we keep it the same
36. 36.🧺 Do we need salt for growing salt crystals? (a) not needed (b) needed
37. 37.🔮 Predict: crystals grow slowly where nobody disturbs them. How big are they? (a) no crystals (b) bigger crystals (c) liquid crystals (d) smaller crystals
38. 38.🧺 Which of these is needed for growing salt crystals? (a) a magnet (b) a balloon (c) a mirror (d) warm water
39. 39.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) salt (b) a spoon (c) yeast (d) warm water
40. 40.🧈 Which of these is a change that can be undone? (a) baking a cake (b) melting butter (c) milk turning to curd (d) cooking an egg

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