Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 777 · 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: table salt does not dissolve in water. (a) True (b) False
2. 2.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) warm water (b) salt (c) yeast (d) a shallow dish
3. 3.🧈 Can this change be undone: melting butter? (a) can be undone (b) cannot be undone
4. 4.🛟 Who should pour the warm water for the crystal experiment? (a) nobody needs to (b) the youngest child (c) a friend who is running (d) a grown-up
5. 5.🔍 Which is the odd one out? (a) sawdust (b) sand (c) small pebbles (d) food colour
6. 6.🧺 Do we need a mirror for growing salt crystals? (a) needed (b) not needed
7. 7.⚖️ 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 kind of salt (c) the same dish (d) sunny or shady place
8. 8.🧈 Can this change be undone: folding paper? (a) can be undone (b) cannot be undone
9. 9.🔍 Which is the odd one out? (a) sawdust (b) cooking oil (c) sand (d) sugar
10. 10.📘 What do we call a solution that cannot dissolve any more salt? (a) empty (b) saturated (c) magnetic (d) frozen
11. 11.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: sunny or shady place is the one thing we change. (a) False (b) True
12. 12.🧈 Which of these is a change that cannot be undone? (a) melting butter (b) dissolving salt (c) milk turning to curd (d) melting ice
13. 13.🧺 Which of these is needed for growing salt crystals? (a) a battery cell (b) a magnet (c) yeast (d) warm water
14. 14.🧂 Which of these does not dissolve in water? (a) glucose powder (b) cooking oil (c) table salt (d) baking soda
15. 15.🧺 Which of these is not needed for growing salt crystals? (a) salt (b) a mirror (c) a shallow dish (d) a spoon
16. 16.🧂 Why do we stir in salt until no more will dissolve? (a) to make it very salty (b) to make it fizz (c) to change its colour (d) to cool the water
17. 17.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is kept the same? (a) sunny or shady place (b) days to see crystals (c) the amount of water
18. 18.🧺 Do we need a shallow dish for growing salt crystals? (a) not needed (b) needed
19. 19.🧺 Which of these is not needed for growing salt crystals? (a) salt (b) a piece of string (c) a shallow dish (d) yeast
20. 20.True or false: table salt dissolves in water. (a) False (b) True
21. 21.🧺 Which of these is needed for growing salt crystals? (a) salt (b) a magnet (c) a balloon (d) yeast
22. 22.True or false: small pebbles dissolves in water. (a) True (b) False
23. 23.🧂 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
24. 24.🧂 Which of these dissolves in water? (a) glucose powder (b) small pebbles (c) chalk powder (d) sawdust
25. 25.🔍 Which is the odd one out? (a) sand (b) chalk powder (c) sawdust (d) table salt
26. 26.🔮 Predict: you cover the dish so no water can escape. What happens? (a) it fizzes (b) crystals grow faster (c) it turns sweet (d) few or no crystals
27. 27.🧂 What shape are table salt crystals under a magnifying glass? (a) tiny triangles (b) tiny spheres (c) tiny cubes (d) tiny stars
28. 28.⚖️ 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 amount of salt (c) sunny or shady place (d) the amount of water
29. 29.True or false: a balloon is needed for growing salt crystals. (a) False (b) True
30. 30.🧂 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
31. 31.True or false: melting ice is a change that cannot be undone. (a) False (b) True
32. 32.🧈 Can this change be undone: milk turning to curd? (a) can be undone (b) cannot be undone
33. 33.⚖️ 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) False (b) True
34. 34.🧂 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
35. 35.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a piece of string (b) a mirror (c) a shallow dish (d) warm water
36. 36.🧂 Which of these dissolves in water? (a) sawdust (b) small pebbles (c) food colour (d) sand
37. 37.🧂 Which of these dissolves in water? (a) cooking oil (b) chalk powder (c) sand (d) table salt
38. 38.⚖️ 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
39. 39.🧈 Can this change be undone: baking a cake? (a) cannot be undone (b) can be undone
40. 40.⚖️ 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 change it (c) we measure it

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