Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 44 · 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.📘 What does “dense” mean? (a) very hot (b) very thin (c) very colourful (d) heavy for its size
2. 2.⚖️ 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 keep it the same (b) we change it (c) we measure it
3. 3.🍯 Why does honey sink to the bottom of the glass? (a) it is yellow (b) it is the stickiest (c) it is the coldest (d) it is the densest
4. 4.True or false: water with food colour is not needed for the density tower. (a) True (b) False
5. 5.🍯 Is honey denser or less dense than water? (a) denser than water (b) less dense than water
6. 6.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
7. 7.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) on top of the oil (b) in the water layer (c) under the honey (d) in the honey layer
8. 8.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a magnet (b) a tall clear glass (c) honey (d) water with food colour
9. 9.True or false: a coin is denser than water. (a) True (b) False
10. 10.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they become solid (b) they separate again (c) they mix for ever (d) they turn to honey
11. 11.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) throw the glass (c) taste each layer (d) do not lick the spoon
12. 12.🧺 Do we need a spoon for the density tower? (a) not needed (b) needed
13. 13.⚖️ 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) how much of each liquid (d) the order of the layers
14. 14.⚖️ 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 three liquids”? (a) we measure it (b) we keep it the same (c) we change it
15. 15.⚖️ 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 keep it the same (b) we change it (c) we measure it
16. 16.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) oil attracts magnets (c) oil makes it rain (d) spilled oil is slippery
17. 17.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) a spoon (c) water with food colour (d) yeast
18. 18.True or false: yeast is not needed for the density tower. (a) True (b) False
19. 19.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the water layer (b) on top of the oil (c) in the oil layer (d) at the very bottom
20. 20.🧺 Do we need a magnet for the density tower? (a) not needed (b) needed
21. 21.🍯 Is very salty water denser or less dense than water? (a) less dense than water (b) denser than water
22. 22.⚖️ 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 same glass (c) the order of pouring (d) the same three liquids
23. 23.🧺 Do we need honey for the density tower? (a) not needed (b) needed
24. 24.🔍 What do you see after pouring honey, water and oil into one glass? (a) one mixed colour (b) the glass gets hot (c) bubbles of gas (d) three separate layers
25. 25.True or false: a pebble is denser than water. (a) True (b) False
26. 26.True or false: cooking oil is needed for the density tower. (a) False (b) True
27. 27.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a spoon (c) turmeric powder (d) cooking oil
28. 28.True or false: an ice cube is less dense than water. (a) False (b) True
29. 29.⚖️ 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 the one thing we change. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) honey (b) a ping-pong ball (c) a coin (d) a pebble
31. 31.🔍 Which is the odd one out? (a) cooking oil (b) a cork (c) a pebble (d) an ice cube
32. 32.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
33. 33.🍯 Which of these is less dense than water? (a) a coin (b) cooking oil (c) honey (d) a glass marble
34. 34.🔍 Which is the odd one out? (a) an ice cube (b) a pebble (c) a glass marble (d) a coin
35. 35.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a balloon (c) water with food colour (d) cooking oil
36. 36.🧺 Do we need water with food colour for the density tower? (a) needed (b) not needed
37. 37.⚖️ 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 change it (b) we measure it (c) we keep it the same
38. 38.⚖️ 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
39. 39.🔍 Which layer is on top in the honey-water-oil tower? (a) cooking oil (b) honey (c) coloured water (d) the spoon
40. 40.🔍 Which is the odd one out? (a) a glass marble (b) a pebble (c) honey (d) cooking oil

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