Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 525 · 40 questions

What you do (Warm, stir, small): 1. An adult pours the same amount of warm water and cold water into two glasses. 2. Add one level teaspoon of sugar to each at the same time. 3. Stir each the same number of times and time how long the sugar takes to vanish. 4. Look, do not taste — then compare the two times.

1. 1.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of sugar (b) the water temperature (c) the kind of sugar (d) time to dissolve
2. 2.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a crystal (c) a rainbow (d) a magnet
3. 3.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) a clock or timer (c) warm water (d) two clear glasses
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we measure it (c) we change it
5. 5.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
6. 6.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) sugar (c) cotton wool (d) a comb
7. 7.True or false: sugar stirred well dissolves slower. (a) True (b) False
8. 8.True or false: sugar in warm water dissolves faster. (a) False (b) True
9. 9.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) smell it closely (d) poke it with a finger
10. 10.True or false: small pebbles does not dissolve in water. (a) True (b) False
11. 11.🥄 Which of these dissolves slower? (a) powdered sugar (b) a big sugar cube (c) sugar in warm water (d) sugar stirred well
12. 12.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
13. 13.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it sank as sand (c) it became air (d) it spread in the water
14. 14.🔍 Which is the odd one out? (a) sand (b) small pebbles (c) sugar (d) sawdust
15. 15.🥄 Which of these dissolves in water? (a) sawdust (b) small pebbles (c) table salt (d) sand
16. 16.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in warm water (c) sugar in icy water (d) a big sugar cube
17. 17.True or false: sugar in warm water dissolves slower. (a) True (b) False
18. 18.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
19. 19.🥄 Which of these dissolves in water? (a) cooking oil (b) sand (c) sawdust (d) sugar
20. 20.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) both the same (c) powdered sugar (d) the sugar cube
21. 21.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) True (b) False
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of sugar (b) the amount of water (c) time to dissolve (d) the water temperature
24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we keep it the same (c) we measure it
25. 25.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a clock or timer (c) honey (d) two clear glasses
26. 26.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a magnet (c) a teaspoon (d) a clock or timer
27. 27.True or false: sugar in icy water dissolves slower. (a) True (b) False
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we measure it (c) we keep it the same
29. 29.True or false: glucose powder does not dissolve in water. (a) True (b) False
30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) time to dissolve (c) the amount of water
31. 31.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
32. 32.True or false: chalk powder does not dissolve in water. (a) False (b) True
33. 33.True or false: sugar is not needed for the dissolving test. (a) True (b) False
34. 34.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
35. 35.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) a friend who is running (c) nobody needs to (d) the youngest child
36. 36.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
37. 37.🥄 Which of these does not dissolve in water? (a) food colour (b) small pebbles (c) table salt (d) sugar
38. 38.🔍 Which is the odd one out? (a) cooking oil (b) small pebbles (c) chalk powder (d) table salt
39. 39.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) the water turns solid (c) some stays undissolved (d) all of it dissolves
40. 40.True or false: sand does not dissolve in water. (a) False (b) True

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