Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 163 · 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 clock or timer is not needed for the dissolving test. (a) False (b) True
2. 2.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
3. 3.⚖️ 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 change it (c) we keep it the same
4. 4.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) some stays undissolved (c) the sugar turns to salt (d) all of it dissolves
5. 5.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
6. 6.🥄 Which of these dissolves slower? (a) sugar in icy water (b) sugar stirred well (c) sugar in warm water (d) powdered sugar
7. 7.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
8. 8.🔍 Which is the odd one out? (a) sugar (b) table salt (c) glucose powder (d) cooking oil
9. 9.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) look for leftover grains (d) poke it with a finger
10. 10.⚖️ 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) False (b) True
11. 11.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a teaspoon (c) honey (d) a clock or timer
12. 12.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
13. 13.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a teaspoon (c) cotton wool (d) cold water
15. 15.True or false: sugar is needed for the dissolving test. (a) False (b) True
16. 16.🥄 Which of these does not dissolve in water? (a) baking soda (b) sugar (c) chalk powder (d) food colour
17. 17.🥄 Which of these does not dissolve in water? (a) small pebbles (b) glucose powder (c) food colour (d) sugar
18. 18.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar left unstirred (c) sugar in warm water (d) powdered sugar
19. 19.🔍 How can you get the salt back from salty water? (a) add more water (b) stir it more (c) keep it in a fridge (d) let the water evaporate
20. 20.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) nobody needs to (c) the youngest child (d) a friend who is running
21. 21.True or false: sugar left unstirred dissolves faster. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) sugar (b) food colour (c) table salt (d) sand
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we keep it the same (c) we change it
24. 24.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) two clear glasses (c) cotton wool (d) warm water
25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) sawdust (b) sugar (c) glucose powder (d) table salt
27. 27.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) time to dissolve (c) the water temperature (d) the amount of water
28. 28.🥄 Which of these dissolves slower? (a) sugar stirred well (b) a big sugar cube (c) powdered sugar (d) sugar in warm water
29. 29.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) not at all (d) faster
30. 30.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) powdered sugar (c) both the same (d) neither of them
31. 31.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
32. 32.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) a clock or timer (c) a teaspoon (d) a mirror
33. 33.True or false: food colour 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 the one thing we change. (a) True (b) False
35. 35.⚖️ 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 measure it (c) we keep it the same
36. 36.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) warm water (c) a magnet (d) a balloon
37. 37.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
38. 38.🔍 Which is the odd one out? (a) sand (b) sawdust (c) small pebbles (d) food colour
39. 39.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
40. 40.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) sugar stirred well (d) a big sugar cube

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