Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 265 · 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 does not dissolve in water? (a) glucose powder (b) table salt (c) baking soda (d) chalk powder
2. 2.True or false: small pebbles dissolves in water. (a) True (b) False
3. 3.⚖️ 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 change it (c) we keep it the same
4. 4.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) sugar (c) two clear glasses (d) cotton wool
5. 5.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a teaspoon (c) cold water (d) a balloon
6. 6.🔍 Which is the odd one out? (a) sugar (b) small pebbles (c) food colour (d) table salt
7. 7.⚖️ 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
8. 8.🧺 Which of these is needed for the dissolving test? (a) a comb (b) sugar (c) a magnet (d) honey
9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) warm water (c) a magnet (d) sugar
10. 10.🔍 Which is the odd one out? (a) sugar (b) cooking oil (c) small pebbles (d) sand
11. 11.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
12. 12.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) look for leftover grains (d) smell it closely
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we keep it the same (c) we change it
14. 14.True or false: baking soda does not dissolve in water. (a) True (b) False
15. 15.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) warm water is thicker (c) particles move faster (d) sugar likes the dark
16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we change it (c) we measure it
17. 17.🔍 How can you get the salt back from salty water? (a) add more water (b) let the water evaporate (c) keep it in a fridge (d) stir it more
18. 18.True or false: sugar dissolves in water. (a) False (b) True
19. 19.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) both the same (c) the sugar cube (d) neither of them
20. 20.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a magnet (c) a crystal (d) a solution
21. 21.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a mirror (c) a comb (d) cold water
22. 22.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar stirred well (d) sugar in icy water
23. 23.🥄 Which of these does not dissolve in water? (a) table salt (b) glucose powder (c) small pebbles (d) sugar
24. 24.True or false: two clear glasses is not needed for the dissolving test. (a) False (b) True
25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is the one thing we change. (a) False (b) True
26. 26.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) honey (c) sugar (d) warm water
27. 27.⚖️ 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) True (b) False
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of water (b) the water temperature (c) the kind of sugar (d) time to dissolve
29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we change it (c) we keep it the same
30. 30.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) some stays undissolved (c) all of it dissolves (d) the water turns solid
31. 31.🥄 Which of these dissolves in water? (a) chalk powder (b) food colour (c) cooking oil (d) small pebbles
32. 32.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) two clear glasses (c) a teaspoon (d) sugar
33. 33.🥄 Which of these dissolves slower? (a) sugar in icy water (b) sugar in warm water (c) sugar stirred well (d) powdered sugar
34. 34.True or false: glucose powder dissolves in water. (a) False (b) True
35. 35.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
36. 36.⚖️ 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) True (b) False
37. 37.True or false: cold water is needed for the dissolving test. (a) False (b) True
38. 38.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) cotton wool (c) a teaspoon (d) sugar
39. 39.🥄 Which of these dissolves in water? (a) sand (b) small pebbles (c) sawdust (d) sugar
40. 40.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it turns blue (c) it settles at the bottom (d) it dissolves

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