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.
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- 1.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of sugar (b) the water temperature (c) time to dissolve
- 2.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) warm water (c) two clear glasses (d) a balloon
- 3.True or false: honey is not needed for the dissolving test. (a) True (b) False
- 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we keep it the same (b) we measure it (c) we change it
- 5.True or false: a clock or timer is needed for the dissolving test. (a) False (b) True
- 6.True or false: sugar stirred well dissolves faster. (a) False (b) True
- 7.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) two clear glasses (c) cold water (d) cotton wool
- 8.⚖️ 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) False (b) True
- 9.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
- 10.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) cold water (c) sugar (d) a magnet
- 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the stirring (b) the water temperature (c) the amount of water (d) time to dissolve
- 12.🧺 Which of these is needed for the dissolving test? (a) a teaspoon (b) a comb (c) a magnet (d) a balloon
- 13.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a magnet (c) a comb (d) two clear glasses
- 14.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) powdered sugar (d) sugar left unstirred
- 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we keep it the same (c) we measure it
- 16.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) taste it (c) look for leftover grains (d) poke it with a finger
- 17.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) cold water (c) honey (d) a clock or timer
- 18.🧺 Which of these is needed for the dissolving test? (a) sugar (b) a mirror (c) a magnet (d) honey
- 19.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) particles move faster (c) cold water is wet (d) sugar likes the dark
- 20.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
- 21.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar in icy water (d) sugar stirred well
- 22.⚖️ 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 keep it the same (c) we measure it
- 23.🥄 Which of these dissolves slower? (a) sugar stirred well (b) a big sugar cube (c) powdered sugar (d) sugar in warm water
- 24.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it vanished for ever (c) it became air (d) it sank as sand
- 25.🔍 Which is the odd one out? (a) table salt (b) sugar (c) baking soda (d) sawdust
- 26.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) a mirror (c) a clock or timer (d) sugar
- 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) two clear glasses (c) cold water (d) a teaspoon
- 28.True or false: sugar stirred well dissolves slower. (a) False (b) True
- 29.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
- 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) False (b) True
- 31.True or false: food colour does not dissolve in water. (a) True (b) False
- 32.True or false: glucose powder does not dissolve in water. (a) False (b) True
- 33.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) both the same (c) neither of them (d) powdered sugar
- 34.True or false: small pebbles dissolves in water. (a) True (b) False
- 35.🥄 Which of these dissolves in water? (a) table salt (b) sand (c) small pebbles (d) cooking oil
- 36.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
- 37.🔍 Which is the odd one out? (a) glucose powder (b) food colour (c) small pebbles (d) table salt
- 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) False (b) True
- 39.🔍 Which is the odd one out? (a) table salt (b) sawdust (c) chalk powder (d) small pebbles
- 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we change it (c) we keep it the same
Answer key
- the amount of sugar
- a balloon
- True
- we keep it the same
- True
- True
- cotton wool
- True
- slower
- a magnet
- the water temperature
- a teaspoon
- two clear glasses
- powdered sugar
- we measure it
- look for leftover grains
- honey
- sugar
- particles move faster
- dissolves in water
- sugar in icy water
- we keep it the same
- a big sugar cube
- it spread in the water
- sawdust
- a mirror
- honey
- False
- not needed
- False
- False
- False
- powdered sugar
- False
- table salt
- not needed
- small pebbles
- False
- table salt
- we keep it the same
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