Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 225 · 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? True or false: time to dissolve is kept the same. (a) False (b) True
2. 2.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
3. 3.🛟 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
4. 4.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) cold water is wet (c) sugar likes the dark (d) warm water is thicker
5. 5.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) poke it with a finger (d) look for leftover grains
6. 6.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar stirred well (d) sugar left unstirred
7. 7.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
8. 8.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) neither of them (c) both the same (d) powdered sugar
9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cold water (c) warm water (d) a comb
10. 10.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) all of it dissolves (c) the sugar turns to salt (d) some stays undissolved
11. 11.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a clock or timer (c) cold water (d) a balloon
12. 12.True or false: a comb is needed for the dissolving test. (a) True (b) False
13. 13.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a clock or timer (c) cotton wool (d) sugar
14. 14.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
15. 15.🥄 Which of these dissolves in water? (a) food colour (b) chalk powder (c) sand (d) small pebbles
16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the water temperature (c) the stirring (d) the amount of water
17. 17.🧺 Which of these is not needed for the dissolving test? (a) cotton wool (b) a clock or timer (c) sugar (d) two clear glasses
18. 18.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) the same (c) not at all (d) slower
19. 19.⚖️ 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
20. 20.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
21. 21.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a clock or timer (c) a balloon (d) honey
22. 22.True or false: warm water is not needed for the dissolving test. (a) True (b) False
23. 23.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) cold water (c) a balloon (d) a magnet
24. 24.🥄 Which of these dissolves slower? (a) powdered sugar (b) a big sugar cube (c) sugar stirred well (d) sugar in warm water
25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
26. 26.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
27. 27.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
28. 28.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
29. 29.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
30. 30.True or false: sugar left unstirred dissolves slower. (a) False (b) True
31. 31.🥄 Which of these dissolves in water? (a) sawdust (b) chalk powder (c) cooking oil (d) sugar
32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) False (b) True
33. 33.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a rainbow (c) a solution (d) a magnet
34. 34.🥄 Which of these dissolves in water? (a) sand (b) baking soda (c) chalk powder (d) small pebbles
35. 35.🥄 Which of these dissolves faster? (a) sugar stirred well (b) sugar left unstirred (c) sugar in icy water (d) a big sugar cube
36. 36.🔍 How can you get the salt back from salty water? (a) stir it more (b) let the water evaporate (c) keep it in a fridge (d) add more water
37. 37.True or false: sugar in warm water dissolves faster. (a) True (b) False
38. 38.⚖️ 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 keep it the same (c) we change it
39. 39.🥄 Which of these dissolves in water? (a) small pebbles (b) glucose powder (c) cooking oil (d) sawdust
40. 40.True or false: sugar in icy water dissolves faster. (a) True (b) False

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