Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 661 · 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.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) warm water is thicker (c) particles move faster (d) cold water is wet
2. 2.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) nobody needs to (c) a friend who is running (d) the youngest child
3. 3.True or false: baking soda does not dissolve in water. (a) True (b) False
4. 4.True or false: cold water is not needed for the dissolving test. (a) False (b) True
5. 5.🔍 Which is the odd one out? (a) sand (b) cooking oil (c) baking soda (d) small pebbles
6. 6.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) sugar (c) a mirror (d) cold water
7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cold water (c) a clock or timer (d) a comb
8. 8.🥄 Which of these dissolves in water? (a) chalk powder (b) cooking oil (c) sugar (d) sawdust
9. 9.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) smell it closely (c) poke it with a finger (d) taste it
10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a clock or timer (c) honey (d) two clear glasses
11. 11.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) neither of them (c) the sugar cube (d) both the same
12. 12.True or false: sugar in warm water dissolves slower. (a) True (b) False
13. 13.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) False (b) True
15. 15.⚖️ 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 kind of sugar (c) the stirring (d) the amount of water
16. 16.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
17. 17.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a mirror (c) sugar (d) honey
18. 18.True or false: warm water is not needed for the dissolving test. (a) False (b) True
19. 19.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) the amount of water (c) the water temperature (d) time to dissolve
21. 21.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it spread in the water (c) it sank as sand (d) it vanished for ever
22. 22.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
23. 23.True or false: sugar is not needed for the dissolving test. (a) True (b) False
24. 24.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we change it (c) we keep it the same
26. 26.True or false: sugar stirred well dissolves faster. (a) True (b) False
27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a clock or timer (c) sugar (d) a mirror
28. 28.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) cold water (c) warm water (d) cotton wool
29. 29.True or false: glucose powder does not dissolve in water. (a) False (b) True
30. 30.⚖️ 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
31. 31.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
32. 32.True or false: powdered sugar dissolves slower. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) small pebbles (b) sand (c) table salt (d) cooking oil
34. 34.🥄 Which of these dissolves slower? (a) sugar stirred well (b) a big sugar cube (c) powdered sugar (d) sugar in warm water
35. 35.🥄 Which of these dissolves in water? (a) table salt (b) sand (c) chalk powder (d) cooking oil
36. 36.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
37. 37.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) warm water (c) two clear glasses (d) a clock or timer
38. 38.🥄 Which of these dissolves faster? (a) a big sugar cube (b) powdered sugar (c) sugar in icy water (d) sugar left unstirred
39. 39.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
40. 40.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar in icy water (c) a big sugar cube (d) sugar left unstirred

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