Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 784 · 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.True or false: a spoon is needed for the density tower. (a) True (b) False
2. 2.🍯 Which of these is less dense than water? (a) honey (b) a pebble (c) very salty water (d) an ice cube
3. 3.⚖️ 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
4. 4.🍯 Why does honey sink to the bottom of the glass? (a) it is yellow (b) it is the densest (c) it is the coldest (d) it is the stickiest
5. 5.🔍 Which is the odd one out? (a) a coin (b) a pebble (c) cooking oil (d) honey
6. 6.🫗 Why does cooking oil float on top of water? (a) oil is sticky (b) oil is heavier (c) oil is hot (d) oil is less dense
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 honey layer (c) under the honey (d) in the water layer
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) how much of each liquid (b) the same three liquids (c) the same glass (d) the order of pouring
9. 9.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a spoon (c) water with food colour (d) a magnet
10. 10.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) cooking oil (c) a spoon (d) yeast
11. 11.🔍 Which is the odd one out? (a) air (b) a coin (c) a glass marble (d) a pebble
12. 12.⚖️ 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) how much of each liquid (c) the order of pouring
13. 13.⚖️ 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
14. 14.🍯 Which of these is denser than water? (a) a glass marble (b) an ice cube (c) a ping-pong ball (d) cooking oil
15. 15.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they become solid (c) they mix for ever (d) they separate again
16. 16.True or false: a magnet is needed for the density tower. (a) True (b) False
17. 17.🧺 Which of these is not needed for the density tower? (a) a battery cell (b) a spoon (c) a tall clear glass (d) cooking oil
18. 18.🧺 Which of these is needed for the density tower? (a) a magnet (b) yeast (c) a spoon (d) a balloon
19. 19.True or false: a cork is less dense than water. (a) False (b) True
20. 20.📘 What does “dense” mean? (a) very colourful (b) heavy for its size (c) very hot (d) very thin
21. 21.🍯 Which of these is denser than water? (a) a ping-pong ball (b) air (c) a cork (d) very salty water
22. 22.True or false: turmeric powder is needed for the density tower. (a) True (b) False
23. 23.🍯 Which of these is less dense than water? (a) a coin (b) a glass marble (c) very salty water (d) cooking oil
24. 24.True or false: yeast is needed for the density tower. (a) True (b) False
25. 25.🧺 Which of these is not needed for the density tower? (a) a magnet (b) honey (c) a spoon (d) water with food colour
26. 26.🔍 What do you see after pouring honey, water and oil into one glass? (a) one mixed colour (b) bubbles of gas (c) the glass gets hot (d) three separate layers
27. 27.⚖️ 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
28. 28.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) turmeric powder (b) water with food colour (c) a spoon (d) cooking oil
29. 29.⚖️ 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 measure it (b) we change it (c) we keep it the same
30. 30.True or false: turmeric powder is not needed for the density tower. (a) True (b) False
31. 31.⚖️ 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) how much of each liquid (b) the same three liquids (c) the order of the layers (d) the same glass
32. 32.True or false: a pebble is denser than water. (a) False (b) True
33. 33.🧺 Do we need a spoon for the density tower? (a) needed (b) not needed
34. 34.🧺 Which of these is needed for the density tower? (a) yeast (b) a mirror (c) a magnet (d) a tall clear glass
35. 35.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) on top of the oil (b) at the very bottom (c) in the water layer (d) in the oil layer
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: the order of the layers is the one thing we change. (a) False (b) True
37. 37.True or false: cooking oil is denser than water. (a) True (b) False
38. 38.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a tall clear glass (c) a mirror (d) water with food colour
39. 39.True or false: a pebble is less dense than water. (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 order of pouring is the one thing we change. (a) True (b) False

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