Dissolving Experiment Worksheet: Warm and Cold Water
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.
NameDateTime takenScore ___ / 40
- 1.🥄 Which of these dissolves in water? (a) chalk powder (b) glucose powder (c) sand (d) sawdust
- 2.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a teaspoon (c) cold water (d) a mirror
- 3.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a comb (c) warm water (d) sugar
- 4.🔮 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
- 5.🔮 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
- 6.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
- 7.True or false: sugar in warm water dissolves faster. (a) True (b) False
- 8.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
- 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a clock or timer (c) cold water (d) honey
- 10.⚖️ 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
- 11.True or false: sugar left unstirred dissolves slower. (a) False (b) True
- 12.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) a clock or timer (c) sugar (d) cold water
- 13.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
- 14.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
- 15.True or false: cold water is needed for the dissolving test. (a) True (b) False
- 16.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) sugar likes the dark (c) particles move faster (d) warm water is thicker
- 17.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
- 18.True or false: chalk powder does not dissolve in water. (a) False (b) True
- 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.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
- 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) sugar (c) a clock or timer (d) a balloon
- 22.🥄 Which of these does not dissolve in water? (a) sugar (b) sawdust (c) glucose powder (d) table salt
- 23.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
- 24.⚖️ 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 water (b) the amount of sugar (c) the water temperature (d) the stirring
- 25.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a teaspoon (c) a clock or timer (d) a magnet
- 26.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) warm water (d) a magnet
- 27.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
- 28.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in warm water (d) sugar in icy water
- 29.🔍 Which is the odd one out? (a) glucose powder (b) table salt (c) sugar (d) small pebbles
- 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we change it (c) we keep it the same
- 31.True or false: sugar stirred well dissolves slower. (a) True (b) False
- 32.True or false: powdered sugar dissolves slower. (a) True (b) False
- 33.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
- 34.⚖️ 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 measure it (c) we change it
- 35.⚖️ 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
- 36.True or false: sugar does not dissolve in water. (a) True (b) False
- 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) False (b) True
- 38.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
- 39.True or false: sugar left unstirred dissolves faster. (a) True (b) False
- 40.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a teaspoon (c) a mirror (d) honey
Answer key
- glucose powder
- a mirror
- a comb
- powdered sugar
- some stays undissolved
- False
- True
- does not dissolve
- honey
- False
- True
- a balloon
- dissolves in water
- dissolves in water
- True
- particles move faster
- not needed
- True
- False
- not needed
- a balloon
- sawdust
- does not dissolve
- the water temperature
- a magnet
- a magnet
- faster
- sugar in icy water
- small pebbles
- we keep it the same
- False
- False
- slower
- we change it
- the amount of water
- False
- False
- slower
- False
- a teaspoon
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids