Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 789 · 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.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) taste it (d) smell it closely
2. 2.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) powdered sugar (d) a big sugar cube
3. 3.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) the youngest child (c) nobody needs to (d) a friend who is running
4. 4.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
5. 5.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar stirred well (d) sugar left unstirred
6. 6.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) cotton wool (c) a clock or timer (d) warm water
7. 7.🥄 Which of these dissolves in water? (a) table salt (b) small pebbles (c) sand (d) cooking oil
8. 8.True or false: a big sugar cube dissolves slower. (a) True (b) False
9. 9.True or false: glucose powder dissolves in water. (a) True (b) False
10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a teaspoon (c) cotton wool (d) two clear glasses
11. 11.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
12. 12.🔍 Which is the odd one out? (a) baking soda (b) sawdust (c) cooking oil (d) sand
13. 13.🥄 Which of these dissolves in water? (a) sand (b) chalk powder (c) cooking oil (d) baking soda
14. 14.🧺 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 magnet
15. 15.True or false: sugar stirred well dissolves slower. (a) False (b) True
16. 16.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) sugar likes the dark (c) warm water is thicker (d) particles move faster
17. 17.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a magnet (c) a crystal (d) a solution
18. 18.True or false: glucose powder does not dissolve in water. (a) False (b) True
19. 19.True or false: food colour does not dissolve in water. (a) False (b) True
20. 20.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
21. 21.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it dissolves (c) it turns blue (d) it floats up
22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the water temperature (b) the stirring (c) the amount of water (d) time to dissolve
23. 23.🥄 Which of these does not dissolve in water? (a) baking soda (b) food colour (c) cooking oil (d) sugar
24. 24.⚖️ 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
25. 25.True or false: sugar in warm water dissolves faster. (a) True (b) False
26. 26.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) two clear glasses (c) honey (d) cotton wool
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) False (b) True
28. 28.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the sugar turns to salt (c) the water turns solid (d) some stays undissolved
29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we measure it (c) we change it
30. 30.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) neither of them (c) the sugar cube (d) powdered sugar
31. 31.True or false: sugar left unstirred dissolves slower. (a) True (b) False
32. 32.True or false: warm water is needed for the dissolving test. (a) False (b) True
33. 33.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) honey (c) warm water (d) a comb
34. 34.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) a teaspoon (c) sugar (d) two clear glasses
35. 35.⚖️ 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) False (b) True
36. 36.True or false: sugar in warm water dissolves slower. (a) False (b) True
37. 37.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a balloon (c) a comb (d) a clock or timer
38. 38.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
39. 39.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) let the water evaporate (c) add more water (d) stir it more
40. 40.True or false: cotton wool is needed for the dissolving test. (a) False (b) True

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