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) taste each layer (b) pour it on the floor (c) throw the glass (d) do not lick the spoon
- 2.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
- 3.🍯 Which of these is denser than water? (a) a cork (b) air (c) cooking oil (d) a pebble
- 4.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: how much of each liquid is kept the same. (a) False (b) True
- 5.🛟 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
- 6.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water
- 7.🔍 Which is the odd one out? (a) honey (b) a coin (c) very salty water (d) air
- 8.🧺 Which of these is not needed for the density tower? (a) honey (b) a spoon (c) turmeric powder (d) cooking oil
- 9.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) in the honey layer (c) on top of the oil (d) in the water layer
- 10.True or false: a tall clear glass is not needed for the density tower. (a) True (b) False
- 11.🔮 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
- 12.⚖️ 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 glass (b) the order of pouring (c) the order of the layers
- 13.🧺 Which of these is not needed for the density tower? (a) a spoon (b) a tall clear glass (c) a balloon (d) honey
- 14.🔍 Which is the odd one out? (a) a coin (b) a ping-pong ball (c) honey (d) a pebble
- 15.🔍 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
- 16.🧺 Do we need cooking oil for the density tower? (a) not needed (b) needed
- 17.🍯 Is a glass marble denser or less dense than water? (a) denser than water (b) less dense than water
- 18.🍯 Why does honey sink to the bottom of the glass? (a) it is the densest (b) it is the stickiest (c) it is the coldest (d) it is yellow
- 19.🧺 Which of these is needed for the density tower? (a) a mirror (b) yeast (c) water with food colour (d) a magnet
- 20.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a battery cell (c) honey (d) a tall clear glass
- 21.⚖️ 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
- 22.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a magnet (b) cooking oil (c) a tall clear glass (d) a spoon
- 23.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) a battery cell (c) honey (d) a tall clear glass
- 24.🔍 Which is the odd one out? (a) very salty water (b) a pebble (c) cooking oil (d) honey
- 25.🧺 Which of these is needed for the density tower? (a) a mirror (b) honey (c) a battery cell (d) turmeric powder
- 26.🍯 Which of these is denser than water? (a) an ice cube (b) air (c) cooking oil (d) honey
- 27.⚖️ 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 order of pouring (c) how much of each liquid
- 28.True or false: cooking oil is not needed for the density tower. (a) True (b) False
- 29.⚖️ 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 same glass (c) the order of the layers (d) the order of pouring
- 30.True or false: a tall clear glass is needed for the density tower. (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 the one thing we change? (a) the same glass (b) the same three liquids (c) how much of each liquid (d) the order of pouring
- 32.⚖️ 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 change it (c) we keep it the same
- 33.🧺 Which of these is needed for the density tower? (a) cooking oil (b) turmeric powder (c) a magnet (d) a mirror
- 34.⚖️ 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 the one thing we change. (a) False (b) True
- 35.🧺 Do we need a battery cell for the density tower? (a) needed (b) not needed
- 36.True or false: air is less dense than water. (a) True (b) False
- 37.True or false: honey is denser than water. (a) False (b) True
- 38.🍯 Which of these is less dense than water? (a) a coin (b) honey (c) cooking oil (d) a pebble
- 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 order of pouring”? (a) we measure it (b) we change it (c) we keep it the same
- 40.⚖️ 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 what we measure. (a) False (b) True
Answer key
- do not lick the spoon
- not needed
- a pebble
- True
- spilled oil is slippery
- denser than water
- air
- turmeric powder
- on top of the oil
- False
- at the very bottom
- the same glass
- a balloon
- a ping-pong ball
- three separate layers
- needed
- denser than water
- it is the densest
- water with food colour
- a battery cell
- False
- a magnet
- a battery cell
- cooking oil
- honey
- honey
- how much of each liquid
- False
- the order of the layers
- True
- the order of pouring
- we keep it the same
- cooking oil
- True
- not needed
- True
- True
- cooking oil
- we change it
- False
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