Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 219 · 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.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) sugar (c) a clock or timer (d) a magnet
2. 2.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
3. 3.True or false: sugar in icy water dissolves faster. (a) False (b) True
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) True (b) False
5. 5.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
6. 6.⚖️ 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
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) False (b) True
8. 8.⚖️ 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
9. 9.True or false: cotton wool is not needed for the dissolving test. (a) True (b) False
10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we keep it the same (c) we measure it
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) True (b) False
12. 12.🥄 Which of these dissolves in water? (a) sand (b) sawdust (c) chalk powder (d) table salt
13. 13.🔍 Which is the odd one out? (a) sand (b) food colour (c) sugar (d) baking soda
14. 14.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) honey (c) two clear glasses (d) a magnet
15. 15.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar stirred well (c) sugar in icy water (d) sugar left unstirred
16. 16.True or false: two clear glasses is needed for the dissolving test. (a) True (b) False
17. 17.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) taste it (c) look for leftover grains (d) smell it closely
18. 18.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
19. 19.True or false: sugar does not dissolve in water. (a) False (b) True
20. 20.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) sugar likes the dark (c) cold water is wet (d) particles move faster
21. 21.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a solution (c) a crystal (d) a rainbow
22. 22.🔍 Which is the odd one out? (a) cooking oil (b) glucose powder (c) baking soda (d) table salt
23. 23.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
24. 24.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
25. 25.⚖️ 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 sugar (b) the kind of sugar (c) the water temperature (d) the amount of water
26. 26.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
27. 27.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
28. 28.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) faster (c) the same (d) slower
29. 29.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a comb (c) a magnet (d) cold water
30. 30.🥄 Which of these does not dissolve in water? (a) baking soda (b) sugar (c) sawdust (d) glucose powder
31. 31.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
32. 32.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) powdered sugar (d) sugar left unstirred
33. 33.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) powdered sugar (c) the sugar cube (d) both the same
34. 34.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we keep it the same (c) we change it
36. 36.🔍 How can you get the salt back from salty water? (a) add more water (b) let the water evaporate (c) stir it more (d) keep it in a fridge
37. 37.🔍 Which is the odd one out? (a) sand (b) chalk powder (c) table salt (d) sawdust
38. 38.🛟 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
39. 39.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of water (b) time to dissolve (c) the water temperature

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