Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 730 · 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.⚖️ 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 same three liquids (c) the order of pouring
2. 2.🔍 Which is the odd one out? (a) a glass marble (b) a pebble (c) cooking oil (d) very salty water
3. 3.🔮 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
4. 4.🍯 Which of these is denser than water? (a) a cork (b) cooking oil (c) a ping-pong ball (d) honey
5. 5.🍯 Is an ice cube denser or less dense than water? (a) denser than water (b) less dense than water
6. 6.⚖️ 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) True (b) False
7. 7.True or false: a pebble is less dense than water. (a) True (b) False
8. 8.⚖️ 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
9. 9.🧺 Do we need cooking oil for the density tower? (a) not needed (b) needed
10. 10.🔍 Which is the odd one out? (a) air (b) a pebble (c) a glass marble (d) very salty water
11. 11.🛟 Why should we wipe up spilled oil at once? (a) oil makes it rain (b) oil turns into honey (c) oil attracts magnets (d) spilled oil is slippery
12. 12.🧺 Do we need a mirror for the density tower? (a) not needed (b) needed
13. 13.🔮 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
14. 14.🔍 Which is the odd one out? (a) a cork (b) cooking oil (c) very salty water (d) an ice cube
15. 15.True or false: honey is not needed for the density tower. (a) False (b) True
16. 16.🧺 Which of these is needed for the density tower? (a) a battery cell (b) turmeric powder (c) a balloon (d) honey
17. 17.🧺 Which of these is needed for the density tower? (a) a mirror (b) a battery cell (c) water with food colour (d) turmeric powder
18. 18.⚖️ 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) the order of the layers (d) the same glass
19. 19.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they mix for ever (c) they become solid (d) they separate again
20. 20.⚖️ 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 kept the same. (a) True (b) False
21. 21.⚖️ 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
22. 22.True or false: very salty water is denser than water. (a) True (b) False
23. 23.True or false: a cork is denser than water. (a) True (b) False
24. 24.🧺 Do we need turmeric powder for the density tower? (a) not needed (b) needed
25. 25.🍯 Which of these is denser than water? (a) a cork (b) a ping-pong ball (c) a coin (d) an ice cube
26. 26.🍯 Which of these is less dense than water? (a) very salty water (b) air (c) honey (d) a pebble
27. 27.🧺 Which of these is needed for the density tower? (a) a spoon (b) a magnet (c) a battery cell (d) a balloon
28. 28.True or false: a spoon is not needed for the density tower. (a) False (b) True
29. 29.True or false: turmeric powder is not needed for the density tower. (a) True (b) False
30. 30.⚖️ 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 the one thing we change. (a) False (b) True
31. 31.True or false: a spoon is needed for the density tower. (a) False (b) True
32. 32.⚖️ 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
33. 33.🧺 Which of these is not needed for the density tower? (a) a battery cell (b) honey (c) cooking oil (d) a tall clear glass
34. 34.🍯 Is a cork denser or less dense than water? (a) denser than water (b) less dense than water
35. 35.🔍 Which is the odd one out? (a) a cork (b) very salty water (c) a glass marble (d) a coin
36. 36.True or false: honey is denser than water. (a) False (b) True
37. 37.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
38. 38.🔍 What do you see after pouring honey, water and oil into one glass? (a) the glass gets hot (b) one mixed colour (c) three separate layers (d) bubbles of gas
39. 39.True or false: a glass marble is denser than water. (a) False (b) True
40. 40.📘 What does “dense” mean? (a) very thin (b) heavy for its size (c) very colourful (d) very hot

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