Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 347 · 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.🔮 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 separate again (d) they become solid
2. 2.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the water layer (b) on top of the oil (c) in the honey layer (d) under the honey
3. 3.🧺 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) cooking oil
4. 4.⚖️ 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 change it (b) we keep it the same (c) we measure it
5. 5.🔍 Which is the odd one out? (a) a cork (b) a ping-pong ball (c) a glass marble (d) air
6. 6.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
7. 7.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) honey (c) a mirror (d) a spoon
8. 8.🍯 Which of these is denser than water? (a) air (b) honey (c) an ice cube (d) a ping-pong ball
9. 9.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
10. 10.🔮 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
11. 11.🍯 Which of these is less dense than water? (a) a pebble (b) a cork (c) very salty water (d) a glass marble
12. 12.🧺 Do we need a spoon for the density tower? (a) needed (b) not needed
13. 13.🔍 Which is the odd one out? (a) a ping-pong ball (b) honey (c) very salty water (d) a coin
14. 14.🍯 Is a glass marble denser or less dense than water? (a) less dense than water (b) denser than water
15. 15.🧺 Which of these is not needed for the density tower? (a) honey (b) water with food colour (c) a magnet (d) a spoon
16. 16.🔍 Which is the odd one out? (a) a cork (b) air (c) a ping-pong ball (d) very salty water
17. 17.True or false: yeast is not needed for the density tower. (a) True (b) False
18. 18.True or false: a battery cell is needed for the density tower. (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? What do we do with “the same three liquids”? (a) we measure it (b) we change it (c) we keep it the same
20. 20.🛟 Which rule keeps the density tower experiment safe? (a) taste each layer (b) do not lick the spoon (c) throw the glass (d) pour it on the floor
21. 21.⚖️ 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
22. 22.True or false: turmeric powder is needed for the density tower. (a) True (b) False
23. 23.⚖️ 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
24. 24.True or false: honey is less dense than water. (a) False (b) True
25. 25.🧺 Which of these is not needed for the density tower? (a) honey (b) a battery cell (c) a spoon (d) water with food colour
26. 26.🧺 Which of these is needed for the density tower? (a) honey (b) a mirror (c) yeast (d) turmeric powder
27. 27.🍯 Why does honey sink to the bottom of the glass? (a) it is the coldest (b) it is the stickiest (c) it is the densest (d) it is yellow
28. 28.🔍 What do you see after pouring honey, water and oil into one glass? (a) three separate layers (b) bubbles of gas (c) the glass gets hot (d) one mixed colour
29. 29.🫗 Why does cooking oil float on top of water? (a) oil is less dense (b) oil is heavier (c) oil is sticky (d) oil is hot
30. 30.True or false: a pebble is less dense than water. (a) False (b) True
31. 31.📘 What does “dense” mean? (a) very colourful (b) very thin (c) heavy for its size (d) very hot
32. 32.⚖️ 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 glass (b) how much of each liquid (c) the order of pouring (d) the order of the layers
33. 33.⚖️ 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 pouring”? (a) we measure it (b) we keep it the same (c) we change it
34. 34.🔍 Which is the odd one out? (a) a ping-pong ball (b) air (c) cooking oil (d) a pebble
35. 35.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) yeast (c) water with food colour (d) honey
36. 36.True or false: cooking oil is denser than water. (a) True (b) False
37. 37.⚖️ 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) False (b) True
38. 38.🔍 Which is the odd one out? (a) honey (b) a glass marble (c) an ice cube (d) a coin
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: the same three liquids is the one thing we change. (a) True (b) False
40. 40.True or false: cooking oil is needed for the density tower. (a) False (b) True

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