Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 871 · 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? True or false: the tub of water is kept the same. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) a feather (b) a metal key (c) a dry leaf (d) a cork
3. 3.🧺 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 battery cell (d) small test objects
4. 4.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) it has a magnet (c) sea water is warm (d) steel is very light
5. 5.🔮 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
6. 6.🛟 Does a cork float or sink in water? (a) floats (b) sinks
7. 7.⚖️ 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
8. 8.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
9. 9.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
10. 10.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a balloon (c) small test objects (d) a tub of water
11. 11.True or false: a piece of thermocol sinks in water. (a) True (b) False
12. 12.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
13. 13.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
14. 14.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) play near a deep pond (d) leave water on the floor
15. 15.⚖️ 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
16. 16.🛟 Which of these floats on water? (a) a cork (b) an iron nail (c) a steel spoon (d) a glass marble
17. 17.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) yeast (d) small test objects
18. 18.⚖️ 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
19. 19.⚖️ 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 shape of the clay (b) the tub of water (c) whether it floats (d) the amount of clay
20. 20.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) both of them (c) the small pebble (d) the big log
21. 21.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to splash everyone (c) to hide the corks (d) to win a prize
22. 22.True or false: a ping-pong ball floats on water. (a) False (b) True
23. 23.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a towel for spills (d) a mirror
24. 24.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it still floats (c) it turns white (d) it dissolves
25. 25.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
26. 26.🔍 Which is the odd one out? (a) a steel spoon (b) a dry leaf (c) an iron nail (d) a coin
27. 27.🔍 Which is the odd one out? (a) a ping-pong ball (b) an ice cube (c) an empty capped bottle (d) a pebble
28. 28.⚖️ 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 change it (c) we keep it the same
29. 29.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
30. 30.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
31. 31.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
32. 32.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
33. 33.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) True (b) False
34. 34.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a balloon (c) a tub of water (d) a results table
35. 35.🔍 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
36. 36.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a magnet (d) a tub of water
37. 37.🛟 Which of these sinks in water? (a) an ice cube (b) a feather (c) a coin (d) a ping-pong ball
38. 38.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) the shape of the clay (c) whether it floats (d) the kind of clay
39. 39.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
40. 40.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed

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