Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 371 · 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 can you get the salt back from salty water? (a) stir it more (b) keep it in a fridge (c) let the water evaporate (d) add more water
2. 2.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) cold water is wet (c) sugar likes the dark (d) particles move faster
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 keep it the same (b) we change it (c) we measure it
4. 4.True or false: a comb is not needed for the dissolving test. (a) False (b) True
5. 5.🥄 Which of these does not dissolve in water? (a) sugar (b) sand (c) baking soda (d) table salt
6. 6.⚖️ 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 kind of sugar (c) the stirring (d) the water temperature
7. 7.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) smell it closely (d) look for leftover grains
8. 8.True or false: glucose powder dissolves in water. (a) False (b) True
9. 9.🧺 Which of these is not needed for the dissolving test? (a) a mirror (b) two clear glasses (c) a clock or timer (d) warm water
10. 10.True or false: sugar is not needed for the dissolving test. (a) True (b) False
11. 11.⚖️ 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
12. 12.True or false: sugar in icy water dissolves faster. (a) True (b) False
13. 13.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) a comb (c) two clear glasses (d) a clock or timer
14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) a teaspoon (c) sugar (d) a clock or timer
15. 15.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) a magnet (c) cold water (d) a clock or timer
16. 16.🧺 Which of these is needed for the dissolving test? (a) sugar (b) a balloon (c) a magnet (d) a comb
17. 17.🥄 Which of these dissolves in water? (a) small pebbles (b) sand (c) chalk powder (d) table salt
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
19. 19.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) powdered sugar (c) sugar in icy water (d) a big sugar cube
20. 20.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we measure it (c) we keep it the same
22. 22.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) sugar (c) warm water (d) cotton wool
23. 23.True or false: sugar in warm water dissolves slower. (a) False (b) True
24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the water temperature (b) time to dissolve (c) the stirring
25. 25.🥄 Which of these dissolves in water? (a) sugar (b) sand (c) sawdust (d) chalk powder
26. 26.True or false: a big sugar cube dissolves slower. (a) False (b) True
27. 27.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) sugar stirred well (d) sugar left unstirred
28. 28.⚖️ 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
29. 29.🥄 Which of these does not dissolve in water? (a) food colour (b) table salt (c) sugar (d) small pebbles
30. 30.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) faster (c) not at all (d) the same
31. 31.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) nobody needs to (c) a grown-up (d) a friend who is running
32. 32.True or false: cotton wool is not needed for the dissolving test. (a) True (b) False
33. 33.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
34. 34.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
35. 35.🥄 Which of these dissolves in water? (a) sand (b) cooking oil (c) baking soda (d) sawdust
36. 36.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
37. 37.True or false: small pebbles does not dissolve in water. (a) False (b) True
38. 38.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) sugar (c) warm water (d) a magnet
40. 40.🔍 Which is the odd one out? (a) sugar (b) sawdust (c) food colour (d) glucose powder

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