Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 144 · 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.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar left unstirred (c) sugar in icy water (d) a big sugar cube
2. 2.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) the youngest child (d) a friend who is running
3. 3.True or false: sawdust does not dissolve in water. (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 kept the same. (a) True (b) False
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 measure it (b) we keep it the same (c) we change it
6. 6.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
7. 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a comb (c) a clock or timer (d) warm water
8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) True (b) False
9. 9.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) honey (c) warm water (d) cotton wool
10. 10.True or false: table salt does not dissolve in water. (a) False (b) True
11. 11.🥄 Which of these does not dissolve in water? (a) chalk powder (b) sugar (c) food colour (d) baking soda
12. 12.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) let the water evaporate (c) stir it more (d) add more water
13. 13.🔮 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
14. 14.True or false: cooking oil dissolves in water. (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 kind of sugar (b) the stirring (c) the amount of water (d) the water temperature
16. 16.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) a teaspoon (c) a mirror (d) cold water
17. 17.True or false: chalk powder dissolves in water. (a) False (b) True
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we keep it the same (c) we change it
19. 19.🥄 Which of these dissolves in water? (a) sand (b) chalk powder (c) small pebbles (d) sugar
20. 20.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) faster (c) not at all (d) slower
21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a clock or timer (c) sugar (d) a balloon
22. 22.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar stirred well (d) sugar left unstirred
23. 23.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
24. 24.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
25. 25.🔍 Which is the odd one out? (a) sawdust (b) chalk powder (c) small pebbles (d) sugar
26. 26.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) sugar likes the dark (c) particles move faster (d) warm water is thicker
27. 27.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) taste it (c) smell it closely (d) poke it with a finger
28. 28.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a clock or timer (c) honey (d) a magnet
29. 29.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
30. 30.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) two clear glasses (c) warm water (d) a clock or timer
32. 32.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
33. 33.True or false: sugar in warm water dissolves faster. (a) False (b) True
34. 34.True or false: a balloon is needed for the dissolving test. (a) True (b) False
35. 35.🥄 Which of these dissolves in water? (a) food colour (b) cooking oil (c) sand (d) chalk powder
36. 36.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
37. 37.🥄 Which of these does not dissolve in water? (a) baking soda (b) glucose powder (c) cooking oil (d) sugar
38. 38.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) sugar in warm water (c) powdered sugar (d) sugar stirred well
39. 39.⚖️ 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
40. 40.True or false: a clock or timer is needed for the dissolving test. (a) False (b) True

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