Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 270 · 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.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
2. 2.🔍 Which is the odd one out? (a) a coin (b) a glass marble (c) an empty capped bottle (d) an iron nail
3. 3.⚖️ 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 measure it (c) we change it
4. 4.⚖️ 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 kind of clay (b) the tub of water (c) the shape of the clay (d) the amount of clay
5. 5.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) sea water is warm (c) steel is very light (d) it has a magnet
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a balloon (c) a results table (d) small test objects
7. 7.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
8. 8.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) run around the tub (c) play near a deep pond (d) leave water on the floor
9. 9.🛟 Which of these sinks in water? (a) a metal key (b) a piece of thermocol (c) a feather (d) an ice-cream stick
10. 10.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
11. 11.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the amount of clay”? (a) we measure it (b) we change it (c) we keep it the same
12. 12.🛟 Does a ball of clay float or sink in water? (a) sinks (b) floats
13. 13.🛟 Which of these sinks in water? (a) an ice cube (b) a ping-pong ball (c) a coin (d) a feather
14. 14.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the shape of the clay”? (a) we change it (b) we measure it (c) we keep it the same
15. 15.🔍 Which is the odd one out? (a) an ice-cream stick (b) a cork (c) an empty capped bottle (d) an iron nail
16. 16.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a cork (c) a glass marble (d) an ice-cream stick
17. 17.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a magnet (c) a results table (d) a balloon
18. 18.🛟 Which of these floats on water? (a) a metal key (b) a ping-pong ball (c) a steel spoon (d) a pebble
19. 19.True or false: a cork floats on water. (a) True (b) False
20. 20.True or false: an iron nail sinks in water. (a) True (b) False
21. 21.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) False (b) True
22. 22.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the amount of clay (c) the shape of the clay (d) the tub of water
24. 24.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
25. 25.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
26. 26.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
27. 27.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a results table (d) a balloon
28. 28.⚖️ 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
29. 29.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
30. 30.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
31. 31.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it dissolves (c) it floats (d) it bounces up
32. 32.🔍 Which is the odd one out? (a) a steel spoon (b) a pebble (c) a cork (d) a ball of clay
33. 33.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a tub of water (d) turmeric powder
34. 34.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it sinks faster (c) it turns to stone (d) it dissolves
35. 35.⚖️ 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
36. 36.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) False (b) True
37. 37.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a tub of water (c) a mirror (d) turmeric powder
38. 38.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
39. 39.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
40. 40.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it sinks (c) it floats higher (d) it melts

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