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