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.
NameDateTime takenScore ___ / 40
- 1.🧺 Which of these is needed for the density tower? (a) yeast (b) a battery cell (c) honey (d) turmeric powder
- 2.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) a spoon (c) a magnet (d) water with food colour
- 3.True or false: honey is not needed for the density tower. (a) True (b) False
- 4.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) honey (c) a battery cell (d) a tall clear glass
- 5.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) turmeric powder (c) a tall clear glass (d) water with food colour
- 6.🛟 Why should we wipe up spilled oil at once? (a) spilled oil is slippery (b) oil attracts magnets (c) oil turns into honey (d) oil makes it rain
- 7.⚖️ 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
- 8.⚖️ 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 order of pouring (b) the same glass (c) the same three liquids (d) the order of the layers
- 9.True or false: a balloon is not needed for the density tower. (a) False (b) True
- 10.🍯 Which of these is less dense than water? (a) an ice cube (b) a pebble (c) honey (d) a coin
- 11.🧺 Which of these is needed for the density tower? (a) a mirror (b) cooking oil (c) turmeric powder (d) a magnet
- 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 glass”? (a) we keep it the same (b) we change it (c) we measure it
- 13.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) honey (c) cooking oil (d) yeast
- 14.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) in the honey layer (c) in the water layer (d) on top of the oil
- 15.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) at the very bottom (b) in the oil layer (c) on top of the oil (d) in the water layer
- 16.🧺 Which of these is needed for the density tower? (a) a tall clear glass (b) a battery cell (c) a balloon (d) a mirror
- 17.🧺 Do we need cooking oil for the density tower? (a) needed (b) not needed
- 18.🧺 Which of these is not needed for the density tower? (a) yeast (b) honey (c) water with food colour (d) a tall clear glass
- 19.⚖️ 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
- 20.🔍 Which is the odd one out? (a) a glass marble (b) honey (c) a coin (d) a ping-pong ball
- 21.🔍 Which is the odd one out? (a) a glass marble (b) an ice cube (c) a cork (d) a ping-pong ball
- 22.🔍 What do you see after pouring honey, water and oil into one glass? (a) the glass gets hot (b) three separate layers (c) one mixed colour (d) bubbles of gas
- 23.🔍 Which is the odd one out? (a) a ping-pong ball (b) a pebble (c) cooking oil (d) a cork
- 24.True or false: honey is denser than water. (a) True (b) False
- 25.True or false: a ping-pong ball is denser than water. (a) True (b) False
- 26.🧺 Which of these is not needed for the density tower? (a) honey (b) a tall clear glass (c) water with food colour (d) a balloon
- 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 order of pouring”? (a) we measure it (b) we change it (c) we keep it the same
- 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 order of the layers”? (a) we change it (b) we measure it (c) we keep it the same
- 29.🍯 Which of these is denser than water? (a) cooking oil (b) an ice cube (c) air (d) a pebble
- 30.🔍 Which is the odd one out? (a) air (b) a glass marble (c) very salty water (d) honey
- 31.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is less dense (c) oil is sticky (d) oil is heavier
- 32.True or false: a glass marble is less dense than water. (a) False (b) True
- 33.⚖️ 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 three liquids (b) the order of the layers (c) the same glass (d) the order of pouring
- 34.True or false: air is denser than water. (a) False (b) True
- 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.🍯 Is an ice cube denser or less dense than water? (a) less dense than water (b) denser than water
- 37.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
- 38.True or false: turmeric powder is needed for the density tower. (a) True (b) False
- 39.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a balloon (c) water with food colour (d) a spoon
- 40.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they mix for ever (b) they turn to honey (c) they separate again (d) they become solid
Answer key
- honey
- a magnet
- False
- a battery cell
- turmeric powder
- spilled oil is slippery
- True
- the order of the layers
- True
- an ice cube
- cooking oil
- we keep it the same
- yeast
- on top of the oil
- at the very bottom
- a tall clear glass
- needed
- yeast
- we keep it the same
- a ping-pong ball
- a glass marble
- three separate layers
- a pebble
- True
- False
- a balloon
- we change it
- we measure it
- a pebble
- air
- oil is less dense
- False
- the order of pouring
- False
- True
- less dense than water
- not needed
- False
- a balloon
- they separate again
Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids