Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 649 · 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 of these is needed for the dissolving test? (a) a balloon (b) cold water (c) a mirror (d) cotton wool
2. 2.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
3. 3.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
4. 4.🥄 Which of these dissolves in water? (a) sugar (b) sand (c) chalk powder (d) small pebbles
5. 5.🥄 Which of these dissolves in water? (a) table salt (b) sand (c) small pebbles (d) chalk powder
6. 6.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
7. 7.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
8. 8.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
9. 9.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
10. 10.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we keep it the same (c) we change it
11. 11.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
12. 12.🛟 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
13. 13.🔍 Which is the odd one out? (a) sand (b) sawdust (c) small pebbles (d) table salt
14. 14.⚖️ 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) False (b) True
15. 15.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) a magnet (c) sugar (d) cold water
16. 16.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it vanished for ever (c) it spread in the water (d) it became air
17. 17.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
18. 18.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) False (b) True
20. 20.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) the amount of sugar (c) the stirring (d) time to dissolve
22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the stirring (c) the water temperature
23. 23.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
24. 24.🥄 Which of these does not dissolve in water? (a) food colour (b) baking soda (c) small pebbles (d) sugar
25. 25.True or false: sugar dissolves in water. (a) True (b) False
26. 26.True or false: sugar left unstirred dissolves faster. (a) False (b) True
27. 27.🥄 Which of these dissolves faster? (a) sugar stirred well (b) a big sugar cube (c) sugar left unstirred (d) sugar in icy water
28. 28.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar left unstirred (c) sugar stirred well (d) sugar in warm water
29. 29.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a magnet (c) a comb (d) warm water
30. 30.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) powdered sugar (c) neither of them (d) both the same
31. 31.True or false: sugar in icy water dissolves faster. (a) True (b) False
32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a magnet (c) sugar (d) a clock or timer
33. 33.🔮 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) some stays undissolved (d) the sugar turns to salt
34. 34.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
35. 35.🥄 Which of these dissolves in water? (a) sand (b) sawdust (c) baking soda (d) chalk powder
36. 36.🧺 Which of these is needed for the dissolving test? (a) sugar (b) cotton wool (c) honey (d) a balloon
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) sand (b) small pebbles (c) chalk powder (d) food colour
39. 39.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) faster (c) slower (d) not at all
40. 40.🥄 Which of these does not dissolve in water? (a) baking soda (b) sugar (c) sand (d) food colour

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids