Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 323 · 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 needed for the density tower? (a) a mirror (b) a tall clear glass (c) a balloon (d) yeast
2. 2.🔮 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
3. 3.🍯 Which of these is denser than water? (a) air (b) a ping-pong ball (c) an ice cube (d) very salty water
4. 4.True or false: cooking oil is denser than water. (a) False (b) True
5. 5.🔮 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
6. 6.⚖️ 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
7. 7.🍯 Which of these is denser than water? (a) honey (b) cooking oil (c) an ice cube (d) a ping-pong ball
8. 8.⚖️ 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 order of the layers (b) the order of pouring (c) the same glass (d) how much of each liquid
9. 9.🍯 Is a cork denser or less dense than water? (a) less dense than water (b) denser than water
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 the layers is what we measure. (a) False (b) True
11. 11.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a spoon (c) turmeric powder (d) a tall clear glass
12. 12.🍯 Is a pebble denser or less dense than water? (a) denser than water (b) less dense than water
13. 13.⚖️ 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
14. 14.🍯 Is very salty water denser or less dense than water? (a) denser than water (b) less dense than water
15. 15.🧺 Which of these is not needed for the density tower? (a) honey (b) cooking oil (c) a balloon (d) a tall clear glass
16. 16.🔍 What do you see after pouring honey, water and oil into one glass? (a) the glass gets hot (b) bubbles of gas (c) one mixed colour (d) three separate layers
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 kept the same? (a) the order of the layers (b) the order of pouring (c) how much of each liquid
18. 18.True or false: honey is denser than water. (a) True (b) False
19. 19.⚖️ 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
20. 20.True or false: air is less dense than water. (a) False (b) True
21. 21.True or false: water with food colour is needed for the density tower. (a) False (b) True
22. 22.True or false: water with food colour is not needed for the density tower. (a) False (b) True
23. 23.True or false: a coin is less dense than water. (a) True (b) False
24. 24.True or false: a cork is denser than water. (a) True (b) False
25. 25.True or false: a mirror is needed for the density tower. (a) False (b) True
26. 26.True or false: a glass marble is denser than water. (a) False (b) True
27. 27.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the water layer (b) in the honey layer (c) on top of the oil (d) under the honey
28. 28.⚖️ 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 order of pouring (b) how much of each liquid (c) the order of the layers (d) the same glass
29. 29.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) cooking oil (c) water with food colour (d) a battery cell
30. 30.🍯 Which of these is less dense than water? (a) very salty water (b) a coin (c) honey (d) cooking oil
31. 31.🧺 Which of these is needed for the density tower? (a) a magnet (b) a balloon (c) a mirror (d) honey
32. 32.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) spilled oil is slippery (c) oil makes it rain (d) oil attracts magnets
33. 33.🔍 Which is the odd one out? (a) very salty water (b) a ping-pong ball (c) a coin (d) honey
34. 34.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) water with food colour (c) a mirror (d) a spoon
35. 35.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
36. 36.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) honey (c) a balloon (d) a tall clear glass
37. 37.🍯 Which of these is less dense than water? (a) an ice cube (b) a coin (c) honey (d) a glass marble
38. 38.🛟 Which rule keeps the density tower experiment safe? (a) throw the glass (b) pour it on the floor (c) taste each layer (d) do not lick the spoon
39. 39.🔍 Which layer is on top in the honey-water-oil tower? (a) coloured water (b) cooking oil (c) honey (d) the spoon
40. 40.🍯 Which of these is less dense than water? (a) a glass marble (b) honey (c) a ping-pong ball (d) a pebble

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