Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 85 · 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.True or false: a glass marble is denser than water. (a) False (b) True
2. 2.🛟 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
3. 3.🧺 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) a spoon
4. 4.🧺 Do we need cooking oil for the density tower? (a) not needed (b) needed
5. 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 the layers is what we measure. (a) False (b) True
6. 6.True or false: a magnet is not needed for the density tower. (a) True (b) False
7. 7.🍯 Which of these is less dense than water? (a) a coin (b) air (c) honey (d) a glass marble
8. 8.🧺 Which of these is needed for the density tower? (a) yeast (b) a battery cell (c) a mirror (d) cooking oil
9. 9.🍯 Which of these is less dense than water? (a) honey (b) a coin (c) a glass marble (d) an ice cube
10. 10.True or false: a tall clear glass is needed for the density tower. (a) False (b) True
11. 11.🔍 What do you see after pouring honey, water and oil into one glass? (a) one mixed colour (b) three separate layers (c) the glass gets hot (d) bubbles of gas
12. 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 order of the layers (b) the order of pouring (c) how much of each liquid
13. 13.🔍 Which layer is on top in the honey-water-oil tower? (a) cooking oil (b) the spoon (c) coloured water (d) honey
14. 14.🍯 Which of these is less dense than water? (a) a coin (b) very salty water (c) a ping-pong ball (d) honey
15. 15.🍯 Why does honey sink to the bottom of the glass? (a) it is the stickiest (b) it is the densest (c) it is the coldest (d) it is yellow
16. 16.🧺 Which of these is needed for the density tower? (a) honey (b) a balloon (c) a magnet (d) yeast
17. 17.⚖️ 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) how much of each liquid (c) the order of pouring (d) the same glass
18. 18.📘 What does “dense” mean? (a) heavy for its size (b) very colourful (c) very hot (d) very thin
19. 19.🍯 Which of these is denser than water? (a) cooking oil (b) a coin (c) an ice cube (d) a ping-pong ball
20. 20.True or false: honey is needed for the density tower. (a) True (b) False
21. 21.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water
22. 22.True or false: very salty water is less dense than water. (a) False (b) True
23. 23.True or false: honey is denser than water. (a) True (b) False
24. 24.🍯 Is honey denser or less dense than water? (a) denser than water (b) less dense than water
25. 25.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a battery cell (b) honey (c) water with food colour (d) a tall clear glass
26. 26.⚖️ 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
27. 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 same glass (b) the order of the layers (c) the order of pouring
28. 28.🔍 Which is the odd one out? (a) cooking oil (b) air (c) an ice cube (d) a pebble
29. 29.🔍 Which is the odd one out? (a) honey (b) very salty water (c) a pebble (d) an ice cube
30. 30.🧺 Do we need a battery cell for the density tower? (a) needed (b) not needed
31. 31.🔮 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
32. 32.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) honey (c) yeast (d) a spoon
33. 33.🫗 Why does cooking oil float on top of water? (a) oil is sticky (b) oil is hot (c) oil is less dense (d) oil is heavier
34. 34.True or false: cooking oil is denser than water. (a) True (b) False
35. 35.⚖️ 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 measure it (b) we change it (c) we keep it the same
36. 36.True or false: air is denser than water. (a) False (b) True
37. 37.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the honey layer (b) on top of the oil (c) in the water layer (d) under the honey
38. 38.🛟 Which rule keeps the density tower experiment safe? (a) taste each layer (b) do not lick the spoon (c) pour it on the floor (d) throw the glass
39. 39.🧺 Do we need a magnet for the density tower? (a) needed (b) not needed
40. 40.⚖️ 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

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