Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 226 · 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 amount of clay”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
3. 3.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
4. 4.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
5. 5.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) its hollow shape (c) sea water is warm (d) it has a magnet
6. 6.🔍 Which is the odd one out? (a) a coin (b) a ping-pong ball (c) an ice cube (d) an empty capped bottle
7. 7.🧺 Which of these is not needed for the float-or-sink test? (a) a mirror (b) small test objects (c) a tub of water (d) a towel for spills
8. 8.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a balloon (c) a mirror (d) small test objects
9. 9.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to hide the corks (c) to splash everyone (d) to keep children safe
10. 10.⚖️ 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 amount of clay (b) the kind of clay (c) the shape of the clay (d) whether it floats
11. 11.🛟 Which of these sinks in water? (a) a ball of clay (b) an ice-cream stick (c) a dry leaf (d) a ping-pong ball
12. 12.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
13. 13.⚖️ 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) False (b) True
14. 14.⚖️ 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 keep it the same (c) we measure it
15. 15.🛟 Which of these floats on water? (a) an iron nail (b) a glass marble (c) a ping-pong ball (d) a pebble
16. 16.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) a mirror (d) a towel for spills
17. 17.⚖️ 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) True (b) False
18. 18.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
19. 19.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) wipe up spills at once (c) play near a deep pond (d) run around the tub
20. 20.True or false: a ball of clay sinks in water. (a) True (b) False
21. 21.True or false: an empty capped bottle floats on water. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) a feather (b) a steel spoon (c) a ball of clay (d) a glass marble
23. 23.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a magnet (c) small test objects (d) a tub of water
24. 24.🛟 Which of these sinks in water? (a) an ice cube (b) a dry leaf (c) a piece of thermocol (d) a pebble
25. 25.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
26. 26.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) a balloon (d) a towel for spills
27. 27.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a battery cell (c) a results table (d) a balloon
28. 28.🛟 Which of these floats on water? (a) a steel spoon (b) an iron nail (c) an empty capped bottle (d) a metal key
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we keep it the same (c) we change it
30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) yeast (c) small test objects (d) a results table
31. 31.🛟 Which of these floats on water? (a) a glass marble (b) a pebble (c) a metal key (d) a dry leaf
32. 32.⚖️ 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
33. 33.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) water is sticky (c) ice is very cold (d) ice is less dense
34. 34.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
35. 35.🛟 Which of these sinks in water? (a) a cork (b) an ice cube (c) a steel spoon (d) a dry leaf
36. 36.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) small test objects (d) turmeric powder
37. 37.True or false: a metal key sinks in water. (a) True (b) False
38. 38.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
39. 39.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) neither of them (c) the big log (d) both of them
40. 40.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it still floats (c) it dissolves (d) it sinks

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