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.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the same three liquids is kept the same. (a) False (b) True
- 2.🧺 Which of these is not needed for the density tower? (a) turmeric powder (b) a spoon (c) honey (d) a tall clear glass
- 3.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
- 4.True or false: an ice cube is denser than water. (a) False (b) True
- 5.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the water layer (b) in the oil layer (c) on top of the oil (d) at the very bottom
- 6.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) do not lick the spoon (c) taste each layer (d) throw the glass
- 7.🧺 Which of these is needed for the density tower? (a) a balloon (b) a battery cell (c) cooking oil (d) a magnet
- 8.True or false: honey is needed for the density tower. (a) True (b) False
- 9.🍯 Which of these is less dense than water? (a) honey (b) air (c) a coin (d) a pebble
- 10.True or false: a spoon 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 spoon (b) cooking oil (c) a balloon (d) honey
- 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 “the same three liquids”? (a) we change it (b) we measure it (c) we keep it the same
- 13.⚖️ 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 same three liquids (b) the order of pouring (c) the order of the layers
- 14.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is heavier (c) oil is sticky (d) oil is less dense
- 15.True or false: a glass marble is denser than water. (a) True (b) False
- 16.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is the one thing we change? (a) the same glass (b) how much of each liquid (c) the same three liquids (d) the order of pouring
- 17.True or false: a spoon is not needed for the density tower. (a) True (b) False
- 18.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) oil attracts magnets (c) spilled oil is slippery (d) oil makes it rain
- 19.True or false: a balloon is needed for the density tower. (a) True (b) False
- 20.📘 What does “dense” mean? (a) heavy for its size (b) very thin (c) very hot (d) very colourful
- 21.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the honey layer (b) under the honey (c) on top of the oil (d) in the water layer
- 22.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is what we measure? (a) the same three liquids (b) how much of each liquid (c) the order of pouring (d) the order of the layers
- 23.🔍 What do you see after pouring honey, water and oil into one glass? (a) bubbles of gas (b) three separate layers (c) one mixed colour (d) the glass gets hot
- 24.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
- 25.🔍 Which is the odd one out? (a) a pebble (b) a coin (c) cooking oil (d) a glass marble
- 26.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) yeast (c) a tall clear glass (d) a spoon
- 27.⚖️ 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 change it (b) we measure it (c) we keep it the same
- 28.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a magnet (c) water with food colour (d) honey
- 29.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the same glass is what we measure. (a) False (b) True
- 30.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
- 31.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) honey (c) turmeric powder (d) water with food colour
- 32.🍯 Which of these is denser than water? (a) a ping-pong ball (b) an ice cube (c) air (d) a pebble
- 33.🍯 Is very salty water denser or less dense than water? (a) less dense than water (b) denser than water
- 34.🧺 Which of these is needed for the density tower? (a) a battery cell (b) a spoon (c) a balloon (d) turmeric powder
- 35.⚖️ 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
- 36.🍯 Why does honey sink to the bottom of the glass? (a) it is the stickiest (b) it is the coldest (c) it is the densest (d) it is yellow
- 37.True or false: very salty water is less dense than water. (a) True (b) False
- 38.🍯 Which of these is denser than water? (a) air (b) an ice cube (c) a ping-pong ball (d) a coin
- 39.🧺 Do we need honey for the density tower? (a) needed (b) not needed
- 40.True or false: a cork is less dense than water. (a) True (b) False
Answer key
- True
- turmeric powder
- needed
- False
- at the very bottom
- do not lick the spoon
- cooking oil
- True
- air
- True
- a balloon
- we keep it the same
- the same three liquids
- oil is less dense
- True
- the order of pouring
- False
- spilled oil is slippery
- False
- heavy for its size
- on top of the oil
- the order of the layers
- three separate layers
- needed
- cooking oil
- yeast
- we keep it the same
- a magnet
- False
- not needed
- turmeric powder
- a pebble
- denser than water
- a spoon
- True
- it is the densest
- False
- a coin
- needed
- True
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