Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 277 · 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 dissolves in water? (a) sawdust (b) sand (c) chalk powder (d) table salt
2. 2.⚖️ 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 kind of salt (b) the amount of salt (c) days to see crystals (d) the amount of water
3. 3.🧺 Do we need a shallow dish for growing salt crystals? (a) not needed (b) needed
4. 4.⚖️ 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 change it (b) we measure it (c) we keep it the same
5. 5.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “the amount of salt”? (a) we measure it (b) we keep it the same (c) we change it
6. 6.🔍 Which is the odd one out? (a) chalk powder (b) sawdust (c) baking soda (d) small pebbles
7. 7.True or false: freezing water is a change that cannot be undone. (a) False (b) True
8. 8.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the kind of salt is what we measure. (a) False (b) True
9. 9.🛟 Where should you keep the crystal dish while it dries? (a) next to the baby (b) in a busy doorway (c) safe from small children (d) on the edge of a table
10. 10.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a piece of string (b) a shallow dish (c) salt (d) a mirror
11. 11.🧺 Which of these is needed for growing salt crystals? (a) salt (b) a battery cell (c) turmeric powder (d) a mirror
12. 12.🧂 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
13. 13.True or false: turmeric powder is needed for growing salt crystals. (a) False (b) True
14. 14.🔍 Which is the odd one out? (a) table salt (b) sawdust (c) small pebbles (d) chalk powder
15. 15.⚖️ 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 change it (b) we measure it (c) we keep it the same
16. 16.🔮 Predict: you cover the dish so no water can escape. What happens? (a) it turns sweet (b) crystals grow faster (c) it fizzes (d) few or no crystals
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) days to see crystals (b) the same dish (c) sunny or shady place
18. 18.🧈 Which of these is a change that cannot be undone? (a) milk turning to curd (b) dissolving salt (c) melting ice (d) melting butter
19. 19.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) it turns to butter (b) it turns to oil (c) sugar crystals form (d) salt crystals form
20. 20.🛟 Who should pour the warm water for the crystal experiment? (a) the youngest child (b) a grown-up (c) a friend who is running (d) nobody needs to
21. 21.True or false: freezing water is a change that can be undone. (a) False (b) True
22. 22.🧺 Do we need a spoon for growing salt crystals? (a) not needed (b) needed
23. 23.🔍 Which is the odd one out? (a) glucose powder (b) baking soda (c) sand (d) table salt
24. 24.⚖️ 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) True (b) False
25. 25.🧂 Why do crystals appear as the dish dries? (a) the dish melts (b) salt eats water (c) water evaporates (d) salt grows roots
26. 26.🧂 Which of these dissolves in water? (a) chalk powder (b) sand (c) food colour (d) cooking oil
27. 27.🧂 Which of these does not dissolve in water? (a) table salt (b) cooking oil (c) food colour (d) baking soda
28. 28.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the amount of salt is kept the same. (a) True (b) False
29. 29.🧺 Do we need a battery cell for growing salt crystals? (a) not needed (b) needed
30. 30.🔮 Predict: crystals grow slowly where nobody disturbs them. How big are they? (a) liquid crystals (b) no crystals (c) bigger crystals (d) smaller crystals
31. 31.🧺 Which of these is not needed for growing salt crystals? (a) salt (b) a piece of string (c) yeast (d) a shallow dish
32. 32.🧺 Which of these is not needed for growing salt crystals? (a) a balloon (b) a spoon (c) a piece of string (d) salt
33. 33.🧈 Which of these is a change that can be undone? (a) rusting iron (b) folding paper (c) cooking an egg (d) milk turning to curd
34. 34.True or false: chalk powder does not dissolve in water. (a) False (b) True
35. 35.🧂 What shape are table salt crystals under a magnifying glass? (a) tiny cubes (b) tiny triangles (c) tiny stars (d) tiny spheres
36. 36.🌊 How is salt made in salt pans by the sea? (a) fish make it (b) salt rains down (c) sand is ground up (d) sea water evaporates
37. 37.True or false: chalk powder dissolves in water. (a) False (b) True
38. 38.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a balloon (b) a piece of string (c) a spoon (d) a shallow dish
39. 39.🧺 Do we need a mirror for growing salt crystals? (a) needed (b) not needed
40. 40.🧺 Do we need warm water for growing salt crystals? (a) not needed (b) needed

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