Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 444 · 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.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is sticky (c) oil is less dense (d) oil is heavier
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 “the same glass”? (a) we keep it the same (b) we change it (c) we measure it
3. 3.True or false: a tall clear glass is needed for the density tower. (a) False (b) True
4. 4.⚖️ 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) True (b) False
5. 5.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a tall clear glass (c) a magnet (d) water with food colour
6. 6.⚖️ 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 pouring (c) the order of the layers (d) the same three liquids
7. 7.True or false: a ping-pong ball is denser than water. (a) True (b) False
8. 8.🔮 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
9. 9.🍯 Which of these is denser than water? (a) a ping-pong ball (b) an ice cube (c) a cork (d) very salty water
10. 10.⚖️ 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 change it (b) we measure it (c) we keep it the same
11. 11.🍯 Which of these is less dense than water? (a) very salty water (b) a pebble (c) honey (d) a ping-pong ball
12. 12.🔍 What do you see after pouring honey, water and oil into one glass? (a) three separate layers (b) one mixed colour (c) the glass gets hot (d) bubbles of gas
13. 13.🧺 Do we need water with food colour for the density tower? (a) needed (b) not needed
14. 14.🧺 Which of these is needed for the density tower? (a) a battery cell (b) a magnet (c) yeast (d) a spoon
15. 15.📘 What does “dense” mean? (a) heavy for its size (b) very thin (c) very colourful (d) very hot
16. 16.🍯 Is a glass marble denser or less dense than water? (a) less dense than water (b) denser than water
17. 17.⚖️ 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 measure it (c) we change it
18. 18.🍯 Is honey denser or less dense than water? (a) denser than water (b) less dense than water
19. 19.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) water with food colour (c) a mirror (d) cooking oil
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 order of the layers is the one thing we change. (a) False (b) True
21. 21.🍯 Which of these is less dense than water? (a) an ice cube (b) honey (c) a pebble (d) a coin
22. 22.True or false: yeast is needed for the density tower. (a) True (b) False
23. 23.🧺 Which of these is needed for the density tower? (a) turmeric powder (b) honey (c) a balloon (d) yeast
24. 24.True or false: a coin is denser than water. (a) False (b) True
25. 25.⚖️ 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 the one thing we change. (a) True (b) False
26. 26.True or false: cooking oil is not needed for the density tower. (a) False (b) True
27. 27.🧺 Which of these is not needed for the density tower? (a) a spoon (b) a tall clear glass (c) turmeric powder (d) cooking oil
28. 28.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a battery cell (b) honey (c) a spoon (d) water with food colour
29. 29.🔍 Which is the odd one out? (a) a glass marble (b) air (c) very salty water (d) honey
30. 30.🔍 Which is the odd one out? (a) honey (b) cooking oil (c) a pebble (d) very salty water
31. 31.🧺 Do we need honey for the density tower? (a) not needed (b) needed
32. 32.🍯 Which of these is denser than water? (a) an ice cube (b) air (c) a glass marble (d) cooking oil
33. 33.🔮 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
34. 34.🧺 Do we need a tall clear glass for the density tower? (a) needed (b) not needed
35. 35.True or false: cooking oil is denser than water. (a) True (b) False
36. 36.⚖️ 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
37. 37.⚖️ 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) the same glass (c) the order of the layers (d) the same three liquids
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: the same three liquids is kept the same. (a) True (b) False
39. 39.True or false: yeast is not needed for the density tower. (a) False (b) True
40. 40.⚖️ 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

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