Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 115 · 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.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) it has a magnet (c) steel is very light (d) its hollow shape
2. 2.🛟 Which of these sinks in water? (a) a coin (b) a ping-pong ball (c) a cork (d) a piece of thermocol
3. 3.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
4. 4.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is the one thing we change. (a) True (b) False
5. 5.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
6. 6.True or false: a balloon is not needed for the float-or-sink test. (a) True (b) False
7. 7.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) leave water on the floor (d) wipe up spills at once
8. 8.⚖️ 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
9. 9.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
10. 10.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) a results table (d) yeast
11. 11.🔍 Which is the odd one out? (a) a metal key (b) a glass marble (c) a coin (d) a ping-pong ball
12. 12.⚖️ 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 shape of the clay (c) the tub of water (d) the kind of clay
13. 13.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
14. 14.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a towel for spills (c) a magnet (d) a balloon
15. 15.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) turmeric powder (c) a balloon (d) small test objects
16. 16.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a results table (c) a magnet (d) a balloon
17. 17.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it floats higher (c) it melts (d) it turns blue
18. 18.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we measure it (c) we keep it the same
19. 19.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it sinks faster (c) it can float (d) it turns to stone
20. 20.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
21. 21.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
22. 22.🛟 Does a coin float or sink in water? (a) floats (b) sinks
23. 23.🔍 Which is the odd one out? (a) an ice-cream stick (b) an ice cube (c) an iron nail (d) a dry leaf
24. 24.🛟 Which of these sinks in water? (a) a feather (b) an ice-cream stick (c) an empty capped bottle (d) an iron nail
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a towel for spills (c) small test objects (d) a results table
26. 26.True or false: a cork sinks in water. (a) False (b) True
27. 27.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
28. 28.True or false: an empty capped bottle floats on water. (a) False (b) True
29. 29.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
30. 30.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) the amount of clay (c) whether it floats
31. 31.🔍 Which is the odd one out? (a) an ice cube (b) a ping-pong ball (c) a dry leaf (d) a pebble
32. 32.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a battery cell (d) a results table
33. 33.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
34. 34.🛟 Which of these floats on water? (a) an iron nail (b) a metal key (c) a glass marble (d) an empty capped bottle
35. 35.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a tub of water (d) a balloon
36. 36.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
37. 37.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
38. 38.🛟 Which of these sinks in water? (a) a ball of clay (b) a dry leaf (c) a feather (d) an ice-cream stick
39. 39.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a magnet (c) a towel for spills (d) a results table
40. 40.🛟 Does a metal key float or sink in water? (a) floats (b) sinks

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