Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 605 · 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? What do we do with “the same glass”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.🍯 Which of these is denser than water? (a) an ice cube (b) a ping-pong ball (c) cooking oil (d) honey
3. 3.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a battery cell (c) cooking oil (d) a tall clear glass
4. 4.🛟 Why should we wipe up spilled oil at once? (a) oil attracts magnets (b) spilled oil is slippery (c) oil turns into honey (d) oil makes it rain
5. 5.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they separate again (b) they mix for ever (c) they turn to honey (d) they become solid
6. 6.True or false: a mirror is needed for the density tower. (a) False (b) True
7. 7.🍯 Is very salty water denser or less dense than water? (a) less dense than water (b) denser than water
8. 8.True or false: an ice cube is less dense than water. (a) False (b) True
9. 9.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) on top of the oil (c) in the honey layer (d) in the water layer
10. 10.⚖️ 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 pouring is kept the same. (a) False (b) True
11. 11.⚖️ 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
12. 12.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
13. 13.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the water layer (b) in the oil layer (c) on top of the oil (d) at the very bottom
14. 14.True or false: a magnet is not needed for the density tower. (a) False (b) True
15. 15.True or false: a balloon is not needed for the density tower. (a) True (b) False
16. 16.⚖️ 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
17. 17.🍯 Which of these is less dense than water? (a) a coin (b) a pebble (c) honey (d) a cork
18. 18.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) taste each layer (c) throw the glass (d) do not lick the spoon
19. 19.True or false: a ping-pong ball is denser than water. (a) False (b) True
20. 20.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
21. 21.True or false: water with food colour is needed for the density tower. (a) False (b) True
22. 22.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
23. 23.🍯 Which of these is less dense than water? (a) honey (b) cooking oil (c) very salty water (d) a coin
24. 24.⚖️ 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
25. 25.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
26. 26.📘 What does “dense” mean? (a) very hot (b) heavy for its size (c) very thin (d) very colourful
27. 27.True or false: a coin is denser than water. (a) True (b) False
28. 28.True or false: cooking oil is needed for the density tower. (a) False (b) True
29. 29.🧺 Do we need cooking oil for the density tower? (a) needed (b) not needed
30. 30.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a magnet (b) a spoon (c) cooking oil (d) water with food colour
31. 31.🔍 Which is the odd one out? (a) a cork (b) a ping-pong ball (c) cooking oil (d) very salty water
32. 32.🔍 Which is the odd one out? (a) a cork (b) air (c) a pebble (d) an ice cube
33. 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 what we measure? (a) the same three liquids (b) the order of the layers (c) how much of each liquid (d) the same glass
34. 34.🔍 Which layer is on top in the honey-water-oil tower? (a) cooking oil (b) the spoon (c) coloured water (d) honey
35. 35.True or false: a tall clear glass is needed for the density tower. (a) True (b) False
36. 36.True or false: cooking oil is not needed for the density tower. (a) False (b) True
37. 37.🧺 Which of these is needed for the density tower? (a) cooking oil (b) a balloon (c) a mirror (d) a magnet
38. 38.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a tall clear glass (c) honey (d) turmeric powder
39. 39.⚖️ 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) False (b) True
40. 40.True or false: very salty water is less dense than water. (a) False (b) True

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