Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 511 · 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.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) a teaspoon (c) warm water (d) a clock or timer
2. 2.True or false: chalk powder does not dissolve in water. (a) False (b) True
3. 3.🥄 Which of these does not dissolve in water? (a) sugar (b) food colour (c) sand (d) table salt
4. 4.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it sank as sand (c) it spread in the water (d) it vanished for ever
5. 5.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
6. 6.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
7. 7.True or false: a big sugar cube dissolves faster. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) sawdust (b) sugar (c) small pebbles (d) cooking oil
9. 9.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) cotton wool (c) cold water (d) a clock or timer
10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) False (b) True
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we change it (c) we keep it the same
12. 12.True or false: cotton wool is needed for the dissolving test. (a) False (b) True
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is the one thing we change. (a) False (b) True
14. 14.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
15. 15.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar stirred well (d) sugar in icy water
16. 16.True or false: glucose powder dissolves in water. (a) False (b) True
17. 17.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the kind of sugar (b) the water temperature (c) time to dissolve
19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we measure it (c) we keep it the same
20. 20.⚖️ 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 water (b) time to dissolve (c) the water temperature (d) the stirring
21. 21.🥄 Which of these dissolves in water? (a) sugar (b) sawdust (c) small pebbles (d) sand
22. 22.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) add more water (c) let the water evaporate (d) stir it more
23. 23.🔍 Which is the odd one out? (a) table salt (b) small pebbles (c) sugar (d) baking soda
24. 24.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar in warm water (c) sugar left unstirred (d) a big sugar cube
25. 25.True or false: warm water is needed for the dissolving test. (a) False (b) True
26. 26.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a solution (c) a magnet (d) a rainbow
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) False (b) True
28. 28.🥄 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cold water (c) honey (d) a teaspoon
31. 31.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) slower (c) the same (d) not at all
32. 32.True or false: sugar in warm water dissolves slower. (a) False (b) True
33. 33.True or false: a magnet is needed for the dissolving test. (a) False (b) True
34. 34.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) nobody needs to (c) a friend who is running (d) a grown-up
35. 35.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
36. 36.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cold water (c) warm water (d) a comb
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the water temperature (c) the amount of sugar
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) True (b) False
39. 39.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
40. 40.True or false: cotton wool is not needed for the dissolving test. (a) True (b) False

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