Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 420 · 40 questions

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.

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

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