Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 297 · 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.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
2. 2.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
3. 3.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a magnet (c) a solution (d) a rainbow
4. 4.🥄 Which of these dissolves in water? (a) cooking oil (b) small pebbles (c) baking soda (d) sawdust
5. 5.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a clock or timer (c) sugar (d) a balloon
6. 6.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) the sugar turns to salt (c) some stays undissolved (d) all of it dissolves
7. 7.⚖️ 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
8. 8.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar left unstirred (d) powdered sugar
9. 9.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) honey (c) a magnet (d) warm water
10. 10.⚖️ 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) time to dissolve (c) the stirring (d) the kind of sugar
11. 11.True or false: cooking oil does not dissolve in water. (a) False (b) True
12. 12.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it settles at the bottom (c) it dissolves (d) it turns blue
13. 13.⚖️ 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
14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) sugar (c) cold water (d) a mirror
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) False (b) True
16. 16.🧺 Which of these is not needed for the dissolving test? (a) cotton wool (b) a teaspoon (c) cold water (d) warm water
17. 17.🔍 Which is the odd one out? (a) sawdust (b) small pebbles (c) cooking oil (d) sugar
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the water temperature (b) the kind of sugar (c) the amount of sugar (d) the stirring
19. 19.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
20. 20.True or false: a balloon is not needed for the dissolving test. (a) False (b) True
21. 21.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar stirred well (c) a big sugar cube (d) sugar left unstirred
22. 22.🥄 Which of these dissolves in water? (a) sugar (b) cooking oil (c) sand (d) chalk powder
23. 23.🔍 How can you get the salt back from salty water? (a) add more water (b) let the water evaporate (c) stir it more (d) keep it in a fridge
24. 24.⚖️ 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 amount of water
25. 25.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
26. 26.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar in icy water (c) sugar stirred well (d) powdered sugar
27. 27.True or false: sugar in icy water dissolves faster. (a) False (b) True
28. 28.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
29. 29.True or false: small pebbles dissolves in water. (a) True (b) False
30. 30.🥄 Which of these does not dissolve in water? (a) sand (b) sugar (c) table salt (d) glucose powder
31. 31.🔍 Which is the odd one out? (a) food colour (b) sugar (c) table salt (d) chalk powder
32. 32.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) smell it closely (d) taste it
33. 33.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
34. 34.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a comb (c) two clear glasses (d) honey
35. 35.🥄 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
36. 36.True or false: sugar is needed for the dissolving test. (a) True (b) False
37. 37.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
38. 38.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) the same (d) faster
39. 39.🧺 Do we need cold water for the dissolving test? (a) not needed (b) needed
40. 40.🔍 Which is the odd one out? (a) sugar (b) table salt (c) small pebbles (d) food colour

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