Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 483 · 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.🧺 Do we need a spoon for growing salt crystals? (a) not needed (b) needed
2. 2.True or false: a balloon is not needed for growing salt crystals. (a) False (b) True
3. 3.📘 What do we call a solution that cannot dissolve any more salt? (a) empty (b) frozen (c) magnetic (d) saturated
4. 4.🧺 Which of these is not needed for growing salt crystals? (a) warm water (b) a mirror (c) a spoon (d) a shallow dish
5. 5.True or false: rusting iron is a change that can be undone. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) cooking oil (b) chalk powder (c) baking soda (d) sand
7. 7.🧺 Do we need salt for growing salt crystals? (a) not needed (b) needed
8. 8.⚖️ 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 keep it the same (b) we change it (c) we measure it
9. 9.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) salt (b) a magnet (c) a shallow dish (d) a spoon
10. 10.🛟 Where should you keep the crystal dish while it dries? (a) in a busy doorway (b) on the edge of a table (c) next to the baby (d) safe from small children
11. 11.🧺 Do we need a shallow dish for growing salt crystals? (a) needed (b) not needed
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.🔮 Predict: crystals grow slowly where nobody disturbs them. How big are they? (a) smaller crystals (b) bigger crystals (c) no crystals (d) liquid crystals
14. 14.⚖️ 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
15. 15.True or false: sugar dissolves in water. (a) True (b) False
16. 16.🧂 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
17. 17.🧈 Which of these is a change that cannot be undone? (a) freezing water (b) folding paper (c) dissolving salt (d) baking a cake
18. 18.🔍 Which is the odd one out? (a) baking soda (b) sand (c) food colour (d) table salt
19. 19.🧂 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
20. 20.True or false: yeast is not needed for growing salt crystals. (a) False (b) True
21. 21.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the amount of water is kept the same. (a) True (b) False
22. 22.🧈 Can this change be undone: browning lemon ink? (a) can be undone (b) cannot be undone
23. 23.⚖️ 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) False (b) True
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) the amount of water (b) the amount of salt (c) sunny or shady place (d) the same dish
25. 25.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a mirror (b) warm water (c) a piece of string (d) salt
26. 26.🧂 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
27. 27.⚖️ 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) the amount of water (c) sunny or shady place
28. 28.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “the same dish”? (a) we keep it the same (b) we measure it (c) we change it
29. 29.🔍 Which is the odd one out? (a) sugar (b) table salt (c) chalk powder (d) food colour
30. 30.🧂 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
31. 31.🛟 Who should pour the warm water for the crystal experiment? (a) a grown-up (b) a friend who is running (c) the youngest child (d) nobody needs to
32. 32.🔍 Which is the odd one out? (a) glucose powder (b) chalk powder (c) sand (d) small pebbles
33. 33.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) salt (b) a piece of string (c) yeast (d) a spoon
34. 34.True or false: a battery cell is needed for growing salt crystals. (a) False (b) True
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 water”? (a) we change it (b) we keep it the same (c) we measure it
36. 36.True or false: a spoon is needed for growing salt crystals. (a) False (b) True
37. 37.🧂 Which of these dissolves in water? (a) small pebbles (b) sawdust (c) baking soda (d) sand
38. 38.True or false: salt is needed for growing salt crystals. (a) True (b) False
39. 39.🧂 Which of these dissolves in water? (a) cooking oil (b) sand (c) chalk powder (d) glucose powder
40. 40.🧂 Why do crystals appear as the dish dries? (a) salt eats water (b) the dish melts (c) salt grows roots (d) water evaporates

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