Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 619 · 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.True or false: a magnet is needed for the dissolving test. (a) True (b) False
2. 2.⚖️ 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
3. 3.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) sawdust (b) sugar (c) cooking oil (d) sand
6. 6.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) the sugar cube (c) neither of them (d) powdered sugar
7. 7.True or false: a teaspoon is needed for the dissolving test. (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 kind of sugar”? (a) we keep it the same (b) we change it (c) we measure it
9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) time to dissolve (c) the amount of water (d) the water temperature
10. 10.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) stir it more (c) let the water evaporate (d) add more water
11. 11.🥄 Which of these does not dissolve in water? (a) food colour (b) sugar (c) baking soda (d) chalk powder
12. 12.True or false: sugar dissolves in water. (a) False (b) True
13. 13.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
14. 14.🧺 Which of these is needed for the dissolving test? (a) a comb (b) sugar (c) cotton wool (d) a mirror
15. 15.🔍 Which is the odd one out? (a) cooking oil (b) chalk powder (c) sawdust (d) baking soda
16. 16.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
17. 17.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
18. 18.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar in icy water (d) sugar stirred well
19. 19.True or false: a comb is not needed for the dissolving test. (a) False (b) True
20. 20.True or false: warm water is not needed for the dissolving test. (a) False (b) True
21. 21.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
22. 22.True or false: cold water is not needed for the dissolving test. (a) False (b) True
23. 23.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) sugar (c) warm water (d) a magnet
24. 24.True or false: table salt dissolves in water. (a) False (b) True
25. 25.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
26. 26.True or false: small pebbles does not dissolve in water. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) table salt (b) baking soda (c) sugar (d) sawdust
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) False (b) True
29. 29.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a teaspoon (c) cold water (d) a mirror
30. 30.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
31. 31.True or false: sugar in icy water dissolves faster. (a) True (b) False
32. 32.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
33. 33.True or false: food colour does not dissolve in water. (a) False (b) True
34. 34.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) poke it with a finger (d) look for leftover grains
35. 35.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
36. 36.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a solution (c) a crystal (d) a magnet
37. 37.🔍 Which is the odd one out? (a) table salt (b) sugar (c) cooking oil (d) glucose powder
38. 38.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) cold water (c) a teaspoon (d) sugar
39. 39.True or false: cooking oil dissolves in water. (a) False (b) True
40. 40.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower

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