Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 874 · 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.🍯 Is a cork denser or less dense than water? (a) denser than water (b) less dense than water
2. 2.🔍 What do you see after pouring honey, water and oil into one glass? (a) three separate layers (b) the glass gets hot (c) bubbles of gas (d) one mixed colour
3. 3.True or false: a mirror is not needed for the density tower. (a) False (b) True
4. 4.🔍 Which is the odd one out? (a) a pebble (b) air (c) cooking oil (d) a cork
5. 5.True or false: cooking oil is not needed for the density tower. (a) True (b) False
6. 6.🍯 Which of these is less dense than water? (a) air (b) honey (c) a pebble (d) very salty water
7. 7.⚖️ 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 change it (c) we keep it the same
8. 8.🧺 Which of these is needed for the density tower? (a) water with food colour (b) turmeric powder (c) a battery cell (d) a mirror
9. 9.⚖️ 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 same three liquids (b) the order of pouring (c) the order of the layers
10. 10.🧺 Which of these is needed for the density tower? (a) a mirror (b) yeast (c) a battery cell (d) cooking oil
11. 11.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
12. 12.⚖️ 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
13. 13.True or false: honey is not needed for the density tower. (a) False (b) True
14. 14.True or false: air is denser than water. (a) True (b) False
15. 15.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a mirror (b) water with food colour (c) cooking oil (d) honey
16. 16.⚖️ 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
17. 17.📘 What does “dense” mean? (a) very hot (b) heavy for its size (c) very colourful (d) very thin
18. 18.⚖️ 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
19. 19.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) yeast (b) water with food colour (c) a tall clear glass (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 kept the same. (a) False (b) True
21. 21.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) at the very bottom (b) on top of the oil (c) in the water layer (d) in the oil layer
22. 22.True or false: cooking oil is less dense than water. (a) True (b) False
23. 23.🔮 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
24. 24.🍯 Why does honey sink to the bottom of the glass? (a) it is the densest (b) it is the stickiest (c) it is yellow (d) it is the coldest
25. 25.True or false: a coin is less dense than water. (a) True (b) False
26. 26.True or false: a magnet is needed for the density tower. (a) True (b) False
27. 27.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
28. 28.True or false: honey is less dense than water. (a) True (b) False
29. 29.🍯 Is honey denser or less dense than water? (a) less dense than water (b) denser than water
30. 30.🍯 Which of these is denser than water? (a) a cork (b) cooking oil (c) an ice cube (d) very salty water
31. 31.🧺 Do we need a mirror for the density tower? (a) not needed (b) needed
32. 32.🔍 Which is the odd one out? (a) very salty water (b) a coin (c) a cork (d) a pebble
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 keep it the same (b) we measure it (c) we change it
34. 34.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a magnet (b) a tall clear glass (c) cooking oil (d) water with food colour
35. 35.🍯 Which of these is less dense than water? (a) cooking oil (b) honey (c) a pebble (d) a coin
36. 36.⚖️ 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 keep it the same (c) we change it
37. 37.True or false: an ice cube is denser than water. (a) False (b) True
38. 38.True or false: a glass marble is denser than water. (a) False (b) True
39. 39.🔮 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 water layer (d) in the honey layer
40. 40.⚖️ 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 measure it (b) we change it (c) we keep it the same

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