Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 747 · 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.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) False (b) True
2. 2.⚖️ 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) True (b) False
3. 3.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the sugar turns to salt (c) the water turns solid (d) all of it dissolves
4. 4.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it became air (c) it spread in the water (d) it sank as sand
5. 5.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
6. 6.True or false: powdered sugar dissolves slower. (a) True (b) False
7. 7.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we measure it (c) we keep it the same
9. 9.🔍 Which is the odd one out? (a) small pebbles (b) chalk powder (c) sugar (d) cooking oil
10. 10.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) sugar stirred well
11. 11.⚖️ 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
12. 12.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) cold water (c) two clear glasses (d) a mirror
13. 13.True or false: sugar does not dissolve in water. (a) False (b) True
14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) a clock or timer (c) a teaspoon (d) two clear glasses
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is the one thing we change. (a) False (b) True
16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we change it (c) we measure it
17. 17.🔍 Which is the odd one out? (a) baking soda (b) sand (c) food colour (d) table salt
18. 18.🥄 Which of these does not dissolve in water? (a) baking soda (b) sugar (c) table salt (d) chalk powder
19. 19.True or false: glucose powder does not dissolve in water. (a) False (b) True
20. 20.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
21. 21.True or false: sugar left unstirred dissolves faster. (a) False (b) True
22. 22.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) cotton wool (c) a clock or timer (d) a balloon
23. 23.⚖️ 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 amount of water (c) the water temperature
24. 24.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
25. 25.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) two clear glasses (c) sugar (d) honey
26. 26.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a magnet (c) honey (d) cold water
27. 27.🧺 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) cotton wool
28. 28.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
29. 29.True or false: sugar left unstirred dissolves slower. (a) True (b) False
30. 30.🛟 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
31. 31.⚖️ 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
32. 32.⚖️ 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 water temperature (c) the kind of sugar
33. 33.🥄 Which of these does not dissolve in water? (a) cooking oil (b) sugar (c) baking soda (d) food colour
34. 34.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
35. 35.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) add more water (c) stir it more (d) let the water evaporate
36. 36.True or false: small pebbles does not dissolve in water. (a) True (b) False
37. 37.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
38. 38.🧺 Which of these is not needed for the dissolving test? (a) honey (b) two clear glasses (c) cold water (d) a clock or timer
39. 39.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
40. 40.🥄 Which of these dissolves in water? (a) chalk powder (b) cooking oil (c) baking soda (d) sawdust

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