Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 705 · 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 dissolves slower? (a) a big sugar cube (b) sugar in warm water (c) powdered sugar (d) sugar stirred well
2. 2.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a clock or timer (c) honey (d) a teaspoon
3. 3.🔍 Which is the odd one out? (a) sawdust (b) table salt (c) food colour (d) sugar
4. 4.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a mirror (c) two clear glasses (d) cold water
5. 5.🔍 Which is the odd one out? (a) table salt (b) baking soda (c) glucose powder (d) small pebbles
6. 6.True or false: cold water is not needed for the dissolving test. (a) False (b) True
7. 7.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar left unstirred (c) powdered sugar (d) sugar in warm water
8. 8.True or false: a balloon is not needed for the dissolving test. (a) True (b) False
9. 9.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
10. 10.⚖️ 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
11. 11.True or false: sugar in icy water dissolves faster. (a) False (b) True
12. 12.🥄 Which of these dissolves in water? (a) small pebbles (b) sand (c) table salt (d) sawdust
13. 13.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) stir it more (c) keep it in a fridge (d) add more water
14. 14.True or false: a clock or timer is needed for the dissolving test. (a) False (b) True
15. 15.🥄 Which of these dissolves in water? (a) glucose powder (b) sawdust (c) cooking oil (d) small pebbles
16. 16.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
17. 17.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
18. 18.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) sugar in icy water (d) powdered sugar
19. 19.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) particles move faster (c) sugar likes the dark (d) warm water is thicker
20. 20.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
21. 21.🥄 Which of these does not dissolve in water? (a) glucose powder (b) baking soda (c) chalk powder (d) sugar
22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a mirror (c) sugar (d) a clock or timer
23. 23.True or false: warm water is not needed for the dissolving test. (a) False (b) True
24. 24.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
25. 25.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a friend who is running (c) the youngest child (d) a grown-up
26. 26.⚖️ 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
27. 27.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a teaspoon (c) a mirror (d) honey
28. 28.⚖️ 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) True (b) False
29. 29.True or false: sugar stirred well dissolves slower. (a) False (b) True
30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we change it (b) we keep it the same (c) we measure it
31. 31.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
32. 32.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) the same (c) not at all (d) slower
33. 33.⚖️ 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) True (b) False
34. 34.🛟 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
35. 35.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a teaspoon (c) cotton wool (d) warm water
36. 36.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
37. 37.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
38. 38.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
39. 39.🥄 Which of these dissolves faster? (a) powdered sugar (b) sugar in icy water (c) sugar left unstirred (d) a big sugar cube
40. 40.⚖️ 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) the amount of sugar

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