Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 348 · 40 questions

What you do (Float or sink?): 1. Fill a tub with water on a towel, with an adult nearby. 2. Guess “float” or “sink” for each object and write it in a table. 3. Gently place each object on the water and write what happens. 4. Press the sinking clay into a boat shape and try again; wipe up spills.

1. 1.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it sinks (c) it floats higher (d) it turns blue
2. 2.True or false: an ice-cream stick floats on water. (a) False (b) True
3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) the shape of the clay (c) whether it floats
4. 4.🔍 Which is the odd one out? (a) a ping-pong ball (b) an ice cube (c) an ice-cream stick (d) an iron nail
5. 5.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
6. 6.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it dissolves (c) it can float (d) it turns to stone
7. 7.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) steel is very light (c) it has a magnet (d) sea water is warm
8. 8.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) whether it floats (b) the shape of the clay (c) the tub of water
9. 9.True or false: a dry leaf floats on water. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) a piece of thermocol (b) a feather (c) a cork (d) a ball of clay
11. 11.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) yeast (c) a tub of water (d) a results table
12. 12.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) True (b) False
13. 13.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the tub of water”? (a) we keep it the same (b) we change it (c) we measure it
14. 14.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) False (b) True
15. 15.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) the tub of water (b) the kind of clay (c) whether it floats (d) the shape of the clay
16. 16.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
17. 17.True or false: a cork sinks in water. (a) False (b) True
18. 18.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a tub of water (c) a mirror (d) turmeric powder
19. 19.🔍 Which is the odd one out? (a) a dry leaf (b) an ice-cream stick (c) a glass marble (d) a cork
20. 20.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a results table (d) a magnet
21. 21.🛟 Does a cork float or sink in water? (a) sinks (b) floats
22. 22.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) the amount of clay (c) the kind of clay (d) whether it floats
23. 23.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a pebble (c) an ice-cream stick (d) an empty capped bottle
24. 24.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a results table (c) a tub of water (d) small test objects
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a results table (d) yeast
26. 26.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) False (b) True
27. 27.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
28. 28.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
29. 29.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
30. 30.🔍 Which is the odd one out? (a) a dry leaf (b) a pebble (c) a feather (d) an ice cube
31. 31.True or false: an ice cube sinks in water. (a) False (b) True
32. 32.🛟 Does a feather float or sink in water? (a) floats (b) sinks
33. 33.True or false: a pebble floats on water. (a) True (b) False
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) False (b) True
35. 35.True or false: a glass marble floats on water. (a) False (b) True
36. 36.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a magnet (c) a results table (d) a battery cell
37. 37.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) True (b) False
38. 38.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is very cold (c) water is sticky (d) ice is magnetic
39. 39.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a towel for spills (d) a mirror
40. 40.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed

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