Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 40 · 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.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
2. 2.🥄 Which of these does not dissolve in water? (a) table salt (b) sugar (c) chalk powder (d) baking soda
3. 3.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
4. 4.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) a big sugar cube (d) sugar stirred well
5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we change it (c) we measure it
6. 6.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) a clock or timer (c) honey (d) warm water
7. 7.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) warm water (c) a magnet (d) a mirror
8. 8.🔍 Which is the odd one out? (a) baking soda (b) glucose powder (c) food colour (d) small pebbles
9. 9.True or false: a magnet is needed for the dissolving test. (a) False (b) True
10. 10.🧺 Which of these is needed for the dissolving test? (a) cold water (b) a magnet (c) a comb (d) a mirror
11. 11.🥄 Which of these does not dissolve in water? (a) baking soda (b) sugar (c) cooking oil (d) glucose powder
12. 12.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
13. 13.🥄 Which of these does not dissolve in water? (a) sand (b) table salt (c) food colour (d) baking soda
14. 14.🔍 How can you get the salt back from salty water? (a) stir it more (b) keep it in a fridge (c) add more water (d) let the water evaporate
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we change it (c) we measure it
16. 16.True or false: a comb is needed for the dissolving test. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) chalk powder (b) sugar (c) small pebbles (d) cooking oil
18. 18.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
19. 19.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) both the same (c) powdered sugar (d) neither of them
20. 20.⚖️ 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
21. 21.🛟 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
22. 22.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we keep it the same (c) we measure it
24. 24.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
25. 25.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar in icy water (c) powdered sugar (d) sugar stirred well
26. 26.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in warm water (d) a big sugar cube
27. 27.🔍 Which is the odd one out? (a) sawdust (b) small pebbles (c) food colour (d) cooking oil
28. 28.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
29. 29.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
30. 30.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
31. 31.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) some stays undissolved (c) the sugar turns to salt (d) all of it dissolves
32. 32.True or false: sugar stirred well dissolves slower. (a) False (b) True
33. 33.⚖️ 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 amount of sugar (c) the water temperature
34. 34.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a rainbow (c) a crystal (d) a solution
35. 35.True or false: sugar in icy water dissolves faster. (a) True (b) False
36. 36.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) sugar (c) a clock or timer (d) a mirror
37. 37.True or false: cotton wool is needed for the dissolving test. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) sawdust (b) small pebbles (c) table salt (d) cooking oil
39. 39.🔍 Which is the odd one out? (a) glucose powder (b) sugar (c) sawdust (d) baking soda
40. 40.True or false: baking soda dissolves in water. (a) False (b) True

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