Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 729 · 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.🛟 Where should you keep the crystal dish while it dries? (a) in a busy doorway (b) safe from small children (c) on the edge of a table (d) next to the baby
2. 2.True or false: a magnet is not needed for growing salt crystals. (a) True (b) False
3. 3.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the amount of salt is what we measure. (a) True (b) False
4. 4.🧂 Which of these does not dissolve in water? (a) chalk powder (b) sugar (c) table salt (d) glucose powder
5. 5.🔍 Which is the odd one out? (a) food colour (b) small pebbles (c) cooking oil (d) chalk powder
6. 6.🧈 Which of these is a change that can be undone? (a) milk turning to curd (b) browning lemon ink (c) baking a cake (d) folding paper
7. 7.🧂 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
8. 8.🧺 Which of these is not needed for growing salt crystals? (a) a shallow dish (b) warm water (c) salt (d) a magnet
9. 9.🧈 Can this change be undone: dissolving salt? (a) cannot be undone (b) can be undone
10. 10.🔍 Which is the odd one out? (a) table salt (b) small pebbles (c) food colour (d) baking soda
11. 11.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) salt (c) warm water (d) a battery cell
12. 12.🧺 Do we need salt for growing salt crystals? (a) not needed (b) needed
13. 13.🛟 Who should pour the warm water for the crystal experiment? (a) a grown-up (b) nobody needs to (c) the youngest child (d) a friend who is running
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) sunny or shady place (b) the same dish (c) the amount of salt (d) days to see crystals
15. 15.🌊 How is salt made in salt pans by the sea? (a) fish make it (b) sand is ground up (c) sea water evaporates (d) salt rains down
16. 16.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) salt (b) a balloon (c) a piece of string (d) a shallow dish
17. 17.🔮 Predict: crystals grow slowly where nobody disturbs them. How big are they? (a) no crystals (b) smaller crystals (c) bigger crystals (d) liquid crystals
18. 18.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is kept the same? (a) the amount of salt (b) sunny or shady place (c) days to see crystals
19. 19.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) it turns to oil (b) sugar crystals form (c) salt crystals form (d) it turns to butter
20. 20.🧂 What shape are table salt crystals under a magnifying glass? (a) tiny spheres (b) tiny stars (c) tiny triangles (d) tiny cubes
21. 21.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) a piece of string (c) yeast (d) warm water
22. 22.🧺 Do we need a piece of string for growing salt crystals? (a) not needed (b) needed
23. 23.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the kind of salt is kept the same. (a) False (b) True
24. 24.True or false: a spoon is not needed for growing salt crystals. (a) True (b) False
25. 25.True or false: a shallow dish is not needed for growing salt crystals. (a) False (b) True
26. 26.True or false: browning lemon ink is a change that cannot be undone. (a) False (b) True
27. 27.True or false: baking soda does not dissolve in water. (a) False (b) True
28. 28.True or false: table salt dissolves in water. (a) False (b) True
29. 29.🧂 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
30. 30.🧺 Which of these is needed for growing salt crystals? (a) a spoon (b) yeast (c) a battery cell (d) a balloon
31. 31.⚖️ 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 change it (b) we keep it the same (c) we measure it
32. 32.True or false: yeast is needed for growing salt crystals. (a) False (b) True
33. 33.⚖️ 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 change it (b) we measure it (c) we keep it the same
34. 34.🧂 Which of these dissolves in water? (a) food colour (b) cooking oil (c) sand (d) chalk powder
35. 35.🧂 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
36. 36.🧺 Do we need a balloon for growing salt crystals? (a) needed (b) not needed
37. 37.🧂 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
38. 38.True or false: glucose powder dissolves in water. (a) True (b) False
39. 39.True or false: folding paper is a change that cannot be undone. (a) True (b) False
40. 40.True or false: a shallow dish is needed for growing salt crystals. (a) False (b) True

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