Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 531 · 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.🔮 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
2. 2.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
3. 3.⚖️ 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
4. 4.⚖️ 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 change it (b) we keep it the same (c) we measure it
5. 5.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) water is sticky (d) ice is less dense
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) small test objects (c) a results table (d) a tub of water
7. 7.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
8. 8.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a battery cell (c) small test objects (d) a tub of water
9. 9.True or false: an iron nail floats on water. (a) False (b) True
10. 10.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
11. 11.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) both of them (c) the small pebble (d) neither of them
12. 12.⚖️ 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 keep it the same (b) we change it (c) we measure it
13. 13.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) yeast (c) a towel for spills (d) small test objects
14. 14.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
15. 15.🛟 Which of these sinks in water? (a) an iron nail (b) a piece of thermocol (c) a feather (d) a dry leaf
16. 16.⚖️ 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
17. 17.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a mirror (c) a tub of water (d) a towel for spills
18. 18.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
19. 19.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
20. 20.True or false: a coin floats on water. (a) False (b) True
21. 21.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
22. 22.🔍 Which is the odd one out? (a) a ping-pong ball (b) a dry leaf (c) an ice cube (d) a glass marble
23. 23.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
24. 24.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it dissolves (c) it sinks (d) it floats
25. 25.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
26. 26.🔍 Which is the odd one out? (a) an empty capped bottle (b) a cork (c) a piece of thermocol (d) a steel spoon
27. 27.🔍 Which is the odd one out? (a) a dry leaf (b) a ping-pong ball (c) a piece of thermocol (d) a coin
28. 28.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a balloon (d) a tub of water
29. 29.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
30. 30.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
31. 31.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
32. 32.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it sinks (c) it dissolves (d) it still floats
33. 33.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it sinks (c) it turns blue (d) it melts
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) whether it floats (c) the shape of the clay
35. 35.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) it has a magnet (c) its hollow shape (d) steel is very light
36. 36.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) yeast (c) a mirror (d) a results table
37. 37.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to hide the corks (c) to win a prize (d) to splash everyone
38. 38.⚖️ 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
39. 39.🛟 Which of these floats on water? (a) a steel spoon (b) a dry leaf (c) a glass marble (d) a ball of clay
40. 40.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) wipe up spills at once (d) leave water on the floor

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