Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 751 · 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 a mirror for the dissolving test? (a) not needed (b) needed
2. 2.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) cotton wool (c) cold water (d) a balloon
3. 3.True or false: sugar in icy water dissolves slower. (a) False (b) True
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is the one thing we change. (a) False (b) True
5. 5.🛟 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
6. 6.⚖️ 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
7. 7.True or false: chalk powder dissolves in water. (a) True (b) False
8. 8.True or false: sugar is not needed for the dissolving test. (a) False (b) True
9. 9.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
10. 10.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
11. 11.⚖️ 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 amount of water (c) the water temperature (d) time to dissolve
12. 12.⚖️ 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 keep it the same (c) we measure it
13. 13.🥄 Which of these dissolves in water? (a) chalk powder (b) sand (c) small pebbles (d) glucose powder
14. 14.True or false: baking soda does not dissolve in water. (a) False (b) True
15. 15.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
16. 16.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) a big sugar cube (d) sugar in warm water
17. 17.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) sugar (c) cotton wool (d) a clock or timer
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we change it (c) we keep it the same
19. 19.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
20. 20.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) honey (c) cold water (d) a clock or timer
22. 22.🧺 Which of these is needed for the dissolving test? (a) warm water (b) cotton wool (c) a magnet (d) honey
23. 23.⚖️ 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 keep it the same (c) we measure it
24. 24.True or false: sugar in icy water dissolves faster. (a) False (b) True
25. 25.True or false: warm water is not needed for the dissolving test. (a) True (b) False
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) True (b) False
27. 27.True or false: honey is needed for the dissolving test. (a) False (b) True
28. 28.True or false: sugar in warm water dissolves slower. (a) False (b) True
29. 29.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) smell it closely (d) look for leftover grains
30. 30.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
31. 31.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
32. 32.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) sugar likes the dark (c) warm water is thicker (d) cold water is wet
33. 33.🥄 Which of these does not dissolve in water? (a) table salt (b) sand (c) sugar (d) glucose powder
34. 34.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) the sugar cube (c) both the same (d) powdered sugar
35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the water temperature (b) time to dissolve (c) the amount of water (d) the amount of sugar
36. 36.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) warm water (c) a magnet (d) a teaspoon
37. 37.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar in icy water (d) sugar stirred well
38. 38.⚖️ 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
39. 39.True or false: food colour does not dissolve in water. (a) False (b) True
40. 40.True or false: table salt dissolves in water. (a) False (b) True

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