Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 698 · 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.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cold water (c) sugar (d) a magnet
2. 2.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) a teaspoon (c) two clear glasses (d) sugar
3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is the one thing we change. (a) True (b) False
4. 4.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a magnet (c) a teaspoon (d) a clock or timer
5. 5.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) sugar (c) two clear glasses (d) warm water
6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we change it (c) we measure it
7. 7.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
8. 8.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
9. 9.🧺 Which of these is needed for the dissolving test? (a) a clock or timer (b) a comb (c) a magnet (d) a balloon
10. 10.⚖️ 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 measure it (c) we keep it the same
11. 11.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
12. 12.True or false: a balloon is needed for the dissolving test. (a) True (b) False
13. 13.True or false: a magnet is needed for the dissolving test. (a) False (b) True
14. 14.🧺 Which of these is not needed for the dissolving test? (a) cotton wool (b) warm water (c) cold water (d) sugar
15. 15.True or false: food colour does not dissolve in water. (a) False (b) True
16. 16.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar in warm water (d) sugar left unstirred
17. 17.⚖️ 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) the amount of water (c) the amount of sugar (d) time to dissolve
18. 18.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
19. 19.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
20. 20.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
21. 21.True or false: sugar stirred well dissolves faster. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) baking soda (b) table salt (c) sand (d) glucose powder
23. 23.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar left unstirred (d) powdered sugar
24. 24.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a grown-up (c) nobody needs to (d) a friend who is running
25. 25.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
26. 26.🥄 Which of these does not dissolve in water? (a) baking soda (b) glucose powder (c) small pebbles (d) sugar
27. 27.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a solution (c) a rainbow (d) a magnet
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) True (b) False
29. 29.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) warm water (c) a teaspoon (d) sugar
30. 30.True or false: sand dissolves in water. (a) True (b) False
31. 31.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) smell it closely (d) taste it
32. 32.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) cold water (c) a balloon (d) honey
33. 33.True or false: sugar in warm water dissolves slower. (a) True (b) False
34. 34.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) the sugar turns to salt (c) all of it dissolves (d) some stays undissolved
35. 35.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
36. 36.🥄 Which of these dissolves faster? (a) sugar stirred well (b) sugar left unstirred (c) a big sugar cube (d) sugar in icy water
37. 37.🥄 Which of these does not dissolve in water? (a) table salt (b) sugar (c) sand (d) baking soda
38. 38.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it floats up (c) it settles at the bottom (d) it dissolves
39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) honey (c) sugar (d) two clear glasses
40. 40.🥄 Which of these dissolves in water? (a) sugar (b) small pebbles (c) chalk powder (d) sand

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