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.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
- 2.🥄 Which of these dissolves in water? (a) small pebbles (b) sugar (c) cooking oil (d) chalk powder
- 3.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) cold water (c) honey (d) a clock or timer
- 4.🥄 Which of these does not dissolve in water? (a) baking soda (b) chalk powder (c) glucose powder (d) sugar
- 5.🥄 Which of these dissolves in water? (a) sawdust (b) small pebbles (c) table salt (d) cooking oil
- 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we change it (b) we measure it (c) we keep it the same
- 7.🥄 Which of these does not dissolve in water? (a) cooking oil (b) glucose powder (c) sugar (d) table salt
- 8.⚖️ 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) time to dissolve (c) the amount of water (d) the stirring
- 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cold water (c) a balloon (d) sugar
- 10.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) not at all (c) the same (d) faster
- 11.🔍 Which is the odd one out? (a) sugar (b) sand (c) chalk powder (d) small pebbles
- 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) True (b) False
- 13.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
- 14.True or false: a mirror is needed for the dissolving test. (a) False (b) True
- 15.🔍 Which is the odd one out? (a) sugar (b) food colour (c) glucose powder (d) small pebbles
- 16.🧺 Which of these is needed for the dissolving test? (a) cold water (b) a balloon (c) a magnet (d) a comb
- 17.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a magnet (c) a teaspoon (d) sugar
- 18.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) warm water (c) two clear glasses (d) cotton wool
- 19.🥄 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
- 20.🔮 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 sugar turns to salt (c) the water turns solid (d) some stays undissolved
- 21.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) nobody needs to (c) a grown-up (d) a friend who is running
- 22.True or false: honey is needed for the dissolving test. (a) False (b) True
- 23.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
- 24.True or false: sugar in icy water dissolves faster. (a) False (b) True
- 25.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
- 26.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
- 27.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar left unstirred (d) sugar in warm water
- 28.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
- 29.🔍 Which is the odd one out? (a) sawdust (b) baking soda (c) sugar (d) food colour
- 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a teaspoon (c) two clear glasses (d) a comb
- 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we measure it (c) we keep it the same
- 32.True or false: a magnet is needed for the dissolving test. (a) True (b) False
- 33.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) two clear glasses (c) a clock or timer (d) cotton wool
- 34.🥄 Which of these does not dissolve in water? (a) food colour (b) table salt (c) glucose powder (d) sawdust
- 35.🥄 Which of these dissolves in water? (a) cooking oil (b) food colour (c) chalk powder (d) sawdust
- 36.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
- 37.🧺 Which of these is needed for the dissolving test? (a) honey (b) warm water (c) a balloon (d) a magnet
- 38.⚖️ 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 change it (c) we keep it the same
- 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cold water (c) sugar (d) honey
- 40.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) warm water (c) cold water (d) sugar
Answer key
- not needed
- sugar
- honey
- chalk powder
- table salt
- we keep it the same
- cooking oil
- the water temperature
- a balloon
- faster
- sugar
- True
- does not dissolve
- False
- small pebbles
- cold water
- a magnet
- cotton wool
- dissolves in water
- some stays undissolved
- a grown-up
- False
- False
- False
- faster
- True
- sugar in warm water
- not needed
- sawdust
- a comb
- we keep it the same
- False
- cotton wool
- sawdust
- food colour
- does not dissolve
- warm water
- we measure it
- honey
- a magnet
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