Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 272 · 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.🔍 Which is the odd one out? (a) a metal key (b) an iron nail (c) a cork (d) a ball of clay
2. 2.True or false: a ball of clay sinks in water. (a) False (b) True
3. 3.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) turmeric powder (d) a towel for spills
4. 4.True or false: a piece of thermocol floats on water. (a) False (b) True
5. 5.⚖️ 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 amount of clay (c) the shape of the clay (d) whether it floats
6. 6.⚖️ 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
7. 7.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) neither of them (c) the small pebble (d) the big log
8. 8.True or false: a cork floats on water. (a) True (b) False
9. 9.🛟 Which of these floats on water? (a) a coin (b) a ball of clay (c) a metal key (d) a dry leaf
10. 10.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is very cold (c) ice is less dense (d) ice is magnetic
11. 11.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
12. 12.🔮 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
13. 13.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
14. 14.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
15. 15.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
16. 16.⚖️ 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 kind of clay (c) whether it floats
17. 17.🛟 Which of these floats on water? (a) a ball of clay (b) a pebble (c) a steel spoon (d) a ping-pong ball
18. 18.⚖️ 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
19. 19.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
20. 20.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to hide the corks (c) to win a prize (d) to keep children safe
21. 21.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
22. 22.🧺 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
23. 23.⚖️ 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 keep it the same (b) we change it (c) we measure it
24. 24.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
25. 25.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
26. 26.True or false: a glass marble sinks in water. (a) False (b) True
27. 27.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a balloon (c) small test objects (d) a mirror
28. 28.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) True (b) False
29. 29.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it still floats (d) it turns white
30. 30.🛟 Does a cork float or sink in water? (a) floats (b) sinks
31. 31.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a little shaking (c) lots of salt stirred in (d) a few ice cubes
32. 32.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
33. 33.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
34. 34.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) play near a deep pond (d) wipe up spills at once
35. 35.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) the tub of water (c) whether it floats (d) the amount of clay
36. 36.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
37. 37.⚖️ 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
38. 38.True or false: a steel spoon floats on water. (a) False (b) True
39. 39.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a mirror (c) a magnet (d) a results table
40. 40.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a tub of water (c) a towel for spills (d) small test objects

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