Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 425 · 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 is the odd one out? (a) sugar (b) table salt (c) chalk powder (d) baking soda
2. 2.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) both the same (c) neither of them (d) powdered sugar
3. 3.🔍 Which is the odd one out? (a) glucose powder (b) sugar (c) table salt (d) cooking oil
4. 4.🔍 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
5. 5.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of sugar (b) the amount of water (c) time to dissolve (d) the water temperature
6. 6.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
7. 7.🧺 Which of these is needed for the dissolving test? (a) a clock or timer (b) a magnet (c) a mirror (d) cotton wool
8. 8.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar in icy water (d) powdered sugar
9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a teaspoon (c) a mirror (d) cold water
10. 10.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) sugar stirred well (c) sugar in warm water (d) powdered sugar
11. 11.🥄 Which of these does not dissolve in water? (a) chalk powder (b) table salt (c) sugar (d) glucose powder
12. 12.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) cold water is wet (c) particles move faster (d) warm water is thicker
13. 13.🥄 Which of these does not dissolve in water? (a) food colour (b) glucose powder (c) baking soda (d) cooking oil
14. 14.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a grown-up (c) a friend who is running (d) nobody needs to
15. 15.True or false: sugar in warm water dissolves faster. (a) True (b) False
16. 16.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
17. 17.⚖️ 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
18. 18.🔍 Which is the odd one out? (a) table salt (b) food colour (c) baking soda (d) sand
19. 19.⚖️ 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
20. 20.⚖️ 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 measure it (c) we change it
21. 21.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a crystal (c) a solution (d) a rainbow
22. 22.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
23. 23.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
24. 24.True or false: sugar is needed for the dissolving test. (a) True (b) False
25. 25.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
26. 26.🧺 Which of these is needed for the dissolving test? (a) cold water (b) a balloon (c) a comb (d) a magnet
27. 27.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) a big sugar cube (d) sugar in warm water
28. 28.🥄 Which of these dissolves in water? (a) chalk powder (b) small pebbles (c) glucose powder (d) sawdust
29. 29.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
30. 30.🛟 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
31. 31.⚖️ 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
32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) honey (c) warm water (d) sugar
33. 33.True or false: sugar dissolves in water. (a) False (b) True
34. 34.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
35. 35.🧺 Which of these is needed for the dissolving test? (a) a teaspoon (b) cotton wool (c) honey (d) a magnet
36. 36.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a clock or timer (c) two clear glasses (d) a magnet
37. 37.True or false: sugar left unstirred dissolves slower. (a) True (b) False
38. 38.True or false: honey is needed for the dissolving test. (a) True (b) False
39. 39.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) sugar (c) warm water (d) a comb

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