Salt Crystal Experiment Worksheet

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

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids