Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 736 · 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.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) True (b) False
2. 2.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) sugar in warm water (d) sugar in icy water
3. 3.🔮 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
4. 4.⚖️ 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
5. 5.⚖️ 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 kind of sugar (d) the amount of sugar
6. 6.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) slower (c) not at all (d) faster
7. 7.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar stirred well (c) sugar in icy water (d) a big sugar cube
8. 8.⚖️ 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 change it (c) we measure it
9. 9.🥄 Which of these dissolves in water? (a) sawdust (b) sand (c) chalk powder (d) food colour
10. 10.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
11. 11.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
12. 12.True or false: powdered sugar dissolves faster. (a) True (b) False
13. 13.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cold water (c) cotton wool (d) sugar
14. 14.🥄 Which of these does not dissolve in water? (a) sugar (b) food colour (c) glucose powder (d) sawdust
15. 15.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cold water (c) a comb (d) warm water
16. 16.⚖️ 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
17. 17.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a comb (c) cotton wool (d) a teaspoon
18. 18.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a magnet (c) a rainbow (d) a crystal
19. 19.🧺 Which of these is needed for the dissolving test? (a) sugar (b) a comb (c) cotton wool (d) a magnet
20. 20.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
21. 21.🥄 Which of these dissolves in water? (a) cooking oil (b) small pebbles (c) sand (d) table salt
22. 22.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it floats up (c) it dissolves (d) it settles at the bottom
23. 23.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
24. 24.🥄 Which of these dissolves in water? (a) chalk powder (b) small pebbles (c) baking soda (d) sawdust
25. 25.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) add more water (c) stir it more (d) let the water evaporate
26. 26.🔍 Which is the odd one out? (a) sawdust (b) sand (c) baking soda (d) small pebbles
27. 27.True or false: sugar left unstirred dissolves faster. (a) False (b) True
28. 28.True or false: baking soda does not dissolve in water. (a) False (b) True
29. 29.🥄 Which of these dissolves slower? (a) a big sugar cube (b) sugar stirred well (c) sugar in warm water (d) powdered sugar
30. 30.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) a clock or timer (c) cold water (d) sugar
31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a teaspoon (c) a magnet (d) warm water
32. 32.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
33. 33.🥄 Which of these dissolves in water? (a) sugar (b) sawdust (c) chalk powder (d) cooking oil
34. 34.True or false: sugar in warm water dissolves faster. (a) False (b) True
35. 35.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
36. 36.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) poke it with a finger (d) smell it closely
37. 37.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
38. 38.🥄 Which of these does not dissolve in water? (a) baking soda (b) small pebbles (c) sugar (d) glucose powder
39. 39.🔍 Which is the odd one out? (a) chalk powder (b) table salt (c) cooking oil (d) sand
40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) False (b) True

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