Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 296 · 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.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
2. 2.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
3. 3.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
4. 4.🥄 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
5. 5.🧺 Which of these is not needed for the dissolving test? (a) cotton wool (b) sugar (c) warm water (d) a teaspoon
6. 6.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
7. 7.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) nobody needs to (d) a grown-up
8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) True (b) False
9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we measure it (c) we keep it the same
10. 10.⚖️ 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 stirring (c) the water temperature (d) time to dissolve
11. 11.True or false: sugar in warm water dissolves slower. (a) True (b) False
12. 12.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar in icy water (d) powdered sugar
13. 13.True or false: sugar does not dissolve in water. (a) True (b) False
14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) warm water (c) cotton wool (d) a clock or timer
15. 15.True or false: glucose powder dissolves in water. (a) False (b) True
16. 16.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a teaspoon (c) cotton wool (d) a comb
17. 17.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a comb (c) two clear glasses (d) warm water
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we keep it the same (c) we change it
19. 19.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) honey (c) a comb (d) sugar
20. 20.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
21. 21.True or false: a big sugar cube dissolves faster. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) small pebbles (b) sugar (c) baking soda (d) glucose powder
23. 23.True or false: sand does not dissolve in water. (a) True (b) False
24. 24.🔍 How can you get the salt back from salty water? (a) stir it more (b) keep it in a fridge (c) add more water (d) let the water evaporate
25. 25.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) poke it with a finger (d) smell it closely
26. 26.⚖️ 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) the amount of water (c) time to dissolve
27. 27.🥄 Which of these dissolves in water? (a) sand (b) sawdust (c) small pebbles (d) sugar
28. 28.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
29. 29.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) all of it dissolves (b) the water turns solid (c) the sugar turns to salt (d) some stays undissolved
30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the water temperature (b) time to dissolve (c) the stirring (d) the amount of sugar
31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a teaspoon (c) a magnet (d) two clear glasses
32. 32.🥄 Which of these does not dissolve in water? (a) sawdust (b) baking soda (c) sugar (d) table salt
33. 33.True or false: baking soda dissolves in water. (a) False (b) True
34. 34.⚖️ 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
35. 35.🔍 Which is the odd one out? (a) small pebbles (b) cooking oil (c) baking soda (d) sand
36. 36.🧺 Which of these is needed for the dissolving test? (a) honey (b) a magnet (c) cold water (d) a comb
37. 37.True or false: cold water is not needed for the dissolving test. (a) False (b) True
38. 38.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
39. 39.True or false: a mirror is needed for the dissolving test. (a) True (b) False
40. 40.True or false: sugar is not needed for the dissolving test. (a) False (b) True

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