Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 48 · 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 kept the same? (a) the water temperature (b) time to dissolve (c) the amount of water
2. 2.🔍 Which is the odd one out? (a) chalk powder (b) sand (c) food colour (d) sawdust
3. 3.🥄 Which of these dissolves in water? (a) sand (b) small pebbles (c) chalk powder (d) food colour
4. 4.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) cold water is wet (c) warm water is thicker (d) particles move faster
5. 5.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) look for leftover grains (d) poke it with a finger
6. 6.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) two clear glasses (c) warm water (d) cotton wool
7. 7.True or false: powdered sugar dissolves slower. (a) True (b) False
8. 8.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) faster (d) the same
9. 9.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
10. 10.⚖️ 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
11. 11.🛟 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
12. 12.🔍 Which is the odd one out? (a) food colour (b) sand (c) sugar (d) glucose powder
13. 13.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) cold water (c) a comb (d) a teaspoon
14. 14.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
15. 15.True or false: sugar stirred well dissolves slower. (a) True (b) False
16. 16.⚖️ 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) the amount of sugar (c) time to dissolve
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the water temperature (b) the amount of sugar (c) the kind of sugar (d) time to dissolve
18. 18.True or false: a comb is not needed for the dissolving test. (a) False (b) True
19. 19.🥄 Which of these does not dissolve in water? (a) chalk powder (b) sugar (c) food colour (d) baking soda
20. 20.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
21. 21.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it dissolves (c) it floats up (d) it turns blue
22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) the stirring (c) the kind of sugar (d) time to dissolve
23. 23.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
24. 24.🥄 Which of these does not dissolve in water? (a) glucose powder (b) food colour (c) sugar (d) small pebbles
25. 25.🥄 Which of these dissolves in water? (a) small pebbles (b) sugar (c) cooking oil (d) chalk powder
26. 26.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
27. 27.🔍 Which is the odd one out? (a) baking soda (b) table salt (c) sawdust (d) sugar
28. 28.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) sugar in warm water (c) powdered sugar (d) sugar stirred well
29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) False (b) True
30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) warm water (c) sugar (d) a comb
31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a clock or timer (c) warm water (d) a magnet
32. 32.True or false: sugar left unstirred dissolves faster. (a) True (b) False
33. 33.True or false: glucose powder dissolves in water. (a) False (b) True
34. 34.True or false: sugar is needed for the dissolving test. (a) False (b) True
35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) True (b) False
36. 36.True or false: sugar dissolves in water. (a) False (b) True
37. 37.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) a big sugar cube (d) sugar in warm water
38. 38.⚖️ 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) True (b) False
39. 39.True or false: sugar stirred well dissolves faster. (a) True (b) False
40. 40.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a comb (c) honey (d) two clear glasses

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