Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 796 · 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.True or false: a balloon is not needed for the dissolving test. (a) False (b) True
2. 2.True or false: food colour dissolves in water. (a) False (b) True
3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we keep it the same (c) we change it
4. 4.True or false: sugar stirred well dissolves faster. (a) True (b) False
5. 5.🥄 Which of these dissolves faster? (a) powdered sugar (b) sugar left unstirred (c) sugar in icy water (d) a big sugar cube
6. 6.True or false: warm water is needed for the dissolving test. (a) False (b) True
7. 7.🥄 Which of these dissolves slower? (a) a big sugar cube (b) sugar stirred well (c) sugar in warm water (d) powdered sugar
8. 8.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) faster (d) the same
9. 9.⚖️ 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) True (b) False
10. 10.🥄 Which of these does not dissolve in water? (a) glucose powder (b) baking soda (c) chalk powder (d) sugar
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) time to dissolve (b) the water temperature (c) the kind of sugar (d) the amount of sugar
12. 12.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
13. 13.⚖️ 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 change it (c) we keep it the same
14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we keep it the same (c) we measure it
15. 15.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) both the same (c) powdered sugar (d) neither of them
16. 16.🥄 Which of these dissolves in water? (a) sand (b) small pebbles (c) chalk powder (d) food colour
17. 17.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in warm water (d) sugar in icy water
18. 18.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
19. 19.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
20. 20.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
21. 21.True or false: sugar stirred well dissolves slower. (a) True (b) False
22. 22.🥄 Which of these dissolves faster? (a) sugar in warm water (b) a big sugar cube (c) sugar in icy water (d) sugar left unstirred
23. 23.🔍 Which is the odd one out? (a) small pebbles (b) sugar (c) cooking oil (d) sand
24. 24.⚖️ 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
25. 25.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a friend who is running (c) the youngest child (d) a grown-up
26. 26.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
27. 27.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
28. 28.True or false: sugar in icy water dissolves slower. (a) False (b) True
29. 29.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
30. 30.🔍 How can you get the salt back from salty water? (a) stir it more (b) add more water (c) let the water evaporate (d) keep it in a fridge
31. 31.True or false: a balloon is needed for the dissolving test. (a) False (b) True
32. 32.⚖️ 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
33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the water temperature (c) the stirring
34. 34.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) taste it (c) poke it with a finger (d) look for leftover grains
35. 35.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
36. 36.🔍 Which is the odd one out? (a) small pebbles (b) glucose powder (c) cooking oil (d) sawdust
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we measure it (c) we keep it the same
38. 38.🔍 Which is the odd one out? (a) baking soda (b) sugar (c) small pebbles (d) glucose powder
39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) two clear glasses (c) honey (d) sugar
40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a clock or timer (c) a comb (d) cold water

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