Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 265 · 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.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the kind of clay”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
3. 3.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it turns blue (c) it floats higher (d) it melts
4. 4.🛟 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
5. 5.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
6. 6.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) sea water is warm (c) its hollow shape (d) steel is very light
7. 7.🛟 Which of these sinks in water? (a) an iron nail (b) an empty capped bottle (c) a piece of thermocol (d) a ping-pong ball
8. 8.🧺 Which of these is not needed for the float-or-sink test? (a) a balloon (b) small test objects (c) a towel for spills (d) a tub of water
9. 9.🛟 Does a feather float or sink in water? (a) floats (b) sinks
10. 10.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
11. 11.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) small test objects (c) a results table (d) a towel for spills
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) a towel for spills (d) a battery cell
13. 13.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to keep children safe (c) to splash everyone (d) to win a prize
14. 14.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a tub of water (d) a magnet
15. 15.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the small pebble (c) the big log (d) neither of them
16. 16.⚖️ 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 measure it (b) we keep it the same (c) we change it
17. 17.🛟 Which of these floats on water? (a) a glass marble (b) a steel spoon (c) a ball of clay (d) a cork
18. 18.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) a little shaking (c) more plain water (d) a few ice cubes
19. 19.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) turmeric powder (c) a results table (d) small test objects
20. 20.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) a mirror (d) small test objects
21. 21.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is kept the same. (a) False (b) True
22. 22.⚖️ 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 keep it the same (b) we change it (c) we measure it
23. 23.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
24. 24.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a tub of water (c) a towel for spills (d) small test objects
25. 25.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
26. 26.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it turns to stone (c) it sinks faster (d) it can float
27. 27.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
28. 28.⚖️ 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 measure it (b) we keep it the same (c) we change it
29. 29.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it turns white (c) it dissolves (d) it sinks
30. 30.🔍 Which is the odd one out? (a) a ball of clay (b) a glass marble (c) an iron nail (d) an ice cube
31. 31.True or false: a ping-pong ball sinks in water. (a) False (b) True
32. 32.⚖️ 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
33. 33.🧺 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) yeast
34. 34.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
35. 35.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
36. 36.⚖️ 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
37. 37.True or false: a ping-pong ball floats on water. (a) True (b) False
38. 38.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) yeast (c) a results table (d) turmeric powder
39. 39.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
40. 40.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a balloon (c) a mirror (d) a towel for spills

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