Density Tower Experiment Worksheet
What you do (Heaviest for its size sinks): 1. Pour honey slowly into the glass to fill about a quarter. 2. Pour coloured water gently down the side of the glass. 3. Pour the cooking oil gently on top and watch the layers settle. 4. Gently drop in a cork and a coin, see where each stops, and wipe up oil spills.
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- 1.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a tall clear glass (c) a battery cell (d) cooking oil
- 2.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “the order of the layers”? (a) we change it (b) we keep it the same (c) we measure it
- 3.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is kept the same? (a) the order of the layers (b) the same glass (c) the order of pouring
- 4.🧺 Do we need turmeric powder for the density tower? (a) not needed (b) needed
- 5.True or false: a balloon is needed for the density tower. (a) False (b) True
- 6.True or false: a tall clear glass is not needed for the density tower. (a) True (b) False
- 7.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “the same glass”? (a) we measure it (b) we keep it the same (c) we change it
- 8.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they mix for ever (c) they become solid (d) they separate again
- 9.🍯 Which of these is denser than water? (a) a coin (b) air (c) an ice cube (d) a ping-pong ball
- 10.True or false: cooking oil is needed for the density tower. (a) False (b) True
- 11.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a balloon (c) honey (d) cooking oil
- 12.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “how much of each liquid”? (a) we change it (b) we keep it the same (c) we measure it
- 13.True or false: a ping-pong ball is less dense than water. (a) True (b) False
- 14.🛟 Which rule keeps the density tower experiment safe? (a) taste each layer (b) do not lick the spoon (c) throw the glass (d) pour it on the floor
- 15.📘 What does “dense” mean? (a) very thin (b) very colourful (c) very hot (d) heavy for its size
- 16.🍯 Which of these is denser than water? (a) cooking oil (b) a cork (c) a pebble (d) an ice cube
- 17.🔍 Which is the odd one out? (a) honey (b) a coin (c) a glass marble (d) an ice cube
- 18.🧺 Which of these is needed for the density tower? (a) cooking oil (b) a balloon (c) turmeric powder (d) yeast
- 19.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) oil attracts magnets (c) spilled oil is slippery (d) oil turns into honey
- 20.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the order of the layers is the one thing we change. (a) True (b) False
- 21.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
- 22.🧺 Which of these is needed for the density tower? (a) honey (b) yeast (c) a battery cell (d) a mirror
- 23.🍯 Which of these is denser than water? (a) a cork (b) an ice cube (c) honey (d) a ping-pong ball
- 24.🧺 Which of these is not needed for the density tower? (a) a balloon (b) a spoon (c) cooking oil (d) a tall clear glass
- 25.🫗 Why does cooking oil float on top of water? (a) oil is sticky (b) oil is less dense (c) oil is heavier (d) oil is hot
- 26.🔍 Which is the odd one out? (a) an ice cube (b) air (c) cooking oil (d) a coin
- 27.True or false: a tall clear glass is needed for the density tower. (a) True (b) False
- 28.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “the same three liquids”? (a) we measure it (b) we keep it the same (c) we change it
- 29.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) honey (c) a spoon (d) yeast
- 30.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the order of pouring is kept the same. (a) False (b) True
- 31.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is kept the same? (a) the order of pouring (b) the order of the layers (c) the same three liquids
- 32.🍯 Which of these is denser than water? (a) air (b) a glass marble (c) a ping-pong ball (d) an ice cube
- 33.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a magnet (b) cooking oil (c) honey (d) a tall clear glass
- 34.🔍 Which is the odd one out? (a) a pebble (b) a glass marble (c) a ping-pong ball (d) very salty water
- 35.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “the order of pouring”? (a) we measure it (b) we keep it the same (c) we change it
- 36.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the order of the layers is what we measure. (a) False (b) True
- 37.True or false: honey is less dense than water. (a) True (b) False
- 38.True or false: very salty water is denser than water. (a) False (b) True
- 39.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
- 40.True or false: a balloon is not needed for the density tower. (a) True (b) False
Answer key
- a battery cell
- we measure it
- the same glass
- not needed
- False
- False
- we keep it the same
- they separate again
- a coin
- True
- a balloon
- we keep it the same
- True
- do not lick the spoon
- heavy for its size
- a pebble
- an ice cube
- cooking oil
- spilled oil is slippery
- False
- needed
- honey
- honey
- a balloon
- oil is less dense
- a coin
- True
- we keep it the same
- yeast
- False
- the same three liquids
- a glass marble
- a magnet
- a ping-pong ball
- we change it
- True
- False
- True
- not needed
- True
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