Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 72 · 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.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a piece of string (b) a spoon (c) a shallow dish (d) yeast
2. 2.🔍 Which is the odd one out? (a) small pebbles (b) sawdust (c) chalk powder (d) baking soda
3. 3.🧺 Which of these is not needed for growing salt crystals? (a) a spoon (b) a piece of string (c) a battery cell (d) a shallow dish
4. 4.🧈 Which of these is a change that can be undone? (a) cooking an egg (b) melting butter (c) rusting iron (d) browning lemon ink
5. 5.⚖️ 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
6. 6.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a piece of string (b) salt (c) a mirror (d) a spoon
7. 7.⚖️ 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 change it (c) we measure it
8. 8.🧺 Do we need yeast for growing salt crystals? (a) needed (b) not needed
9. 9.🧂 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
10. 10.🧂 What shape are table salt crystals under a magnifying glass? (a) tiny spheres (b) tiny cubes (c) tiny stars (d) tiny triangles
11. 11.🛟 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
12. 12.🛟 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
13. 13.🌊 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
14. 14.🧂 Which of these dissolves in water? (a) sand (b) sugar (c) small pebbles (d) chalk powder
15. 15.True or false: freezing water is a change that can be undone. (a) True (b) False
16. 16.True or false: cooking oil does not dissolve in water. (a) True (b) False
17. 17.🧂 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
18. 18.🧺 Do we need a shallow dish for growing salt crystals? (a) needed (b) not needed
19. 19.🔍 Which is the odd one out? (a) small pebbles (b) baking soda (c) table salt (d) sugar
20. 20.🧈 Can this change be undone: baking a cake? (a) cannot be undone (b) can be undone
21. 21.🧂 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
22. 22.True or false: table salt dissolves in water. (a) False (b) True
23. 23.🧺 Which of these is needed for growing salt crystals? (a) a battery cell (b) a magnet (c) a shallow dish (d) a balloon
24. 24.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a balloon (b) salt (c) a piece of string (d) a spoon
25. 25.🧈 Which of these is a change that can be undone? (a) freezing water (b) rusting iron (c) cooking an egg (d) browning lemon ink
26. 26.⚖️ 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 water (c) days to see crystals (d) the same dish
27. 27.🧺 Which of these is not needed for growing salt crystals? (a) a shallow dish (b) warm water (c) salt (d) yeast
28. 28.🧂 Why do crystals appear as the dish dries? (a) the dish melts (b) salt eats water (c) salt grows roots (d) water evaporates
29. 29.🧈 Which of these is a change that cannot be undone? (a) melting butter (b) dissolving salt (c) milk turning to curd (d) freezing water
30. 30.⚖️ 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 same dish (b) sunny or shady place (c) the amount of salt (d) days to see crystals
31. 31.True or false: table salt does not dissolve in water. (a) True (b) False
32. 32.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “days to see crystals”? (a) we keep it the same (b) we measure it (c) we change it
33. 33.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) a battery cell (c) a piece of string (d) salt
34. 34.🧈 Can this change be undone: melting ice? (a) can be undone (b) cannot be undone
35. 35.🧺 Do we need a spoon for growing salt crystals? (a) not needed (b) needed
36. 36.True or false: a battery cell is not needed for growing salt crystals. (a) False (b) True
37. 37.True or false: small pebbles dissolves in water. (a) True (b) False
38. 38.🧂 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
39. 39.🧂 Which of these dissolves in water? (a) sand (b) cooking oil (c) food colour (d) chalk powder
40. 40.True or false: chalk powder does not dissolve in water. (a) False (b) True

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