Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 434 · 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 amount of clay is the one thing we change. (a) False (b) True
2. 2.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it dissolves (c) it turns to stone (d) it sinks faster
3. 3.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
4. 4.🛟 Which of these sinks in water? (a) a ball of clay (b) a ping-pong ball (c) an ice-cream stick (d) a cork
5. 5.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
6. 6.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
7. 7.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it bounces up (c) it floats (d) it dissolves
8. 8.🧺 Which of these is not needed for the float-or-sink test? (a) a balloon (b) small test objects (c) a tub of water (d) a results table
9. 9.🛟 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
10. 10.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we change it (c) we measure it
11. 11.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a mirror (d) a tub of water
12. 12.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
13. 13.⚖️ 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 change it (b) we measure it (c) we keep it the same
14. 14.⚖️ 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) whether it floats (c) the amount of clay (d) the tub of water
15. 15.🔍 Which is the odd one out? (a) a ping-pong ball (b) a dry leaf (c) a feather (d) a ball of clay
16. 16.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
17. 17.🛟 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) run around the tub (d) play near a deep pond
18. 18.⚖️ 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 amount of clay (c) whether it floats
19. 19.🔍 Which is the odd one out? (a) a steel spoon (b) a ball of clay (c) a dry leaf (d) a glass marble
20. 20.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) it has a magnet (c) steel is very light (d) its hollow shape
21. 21.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
22. 22.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
23. 23.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is very cold (c) water is sticky (d) ice is magnetic
24. 24.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
25. 25.True or false: a ping-pong ball sinks in water. (a) True (b) False
26. 26.🛟 Which of these floats on water? (a) a steel spoon (b) a cork (c) a pebble (d) a glass marble
27. 27.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a tub of water (c) a balloon (d) turmeric powder
28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) small test objects (d) a magnet
29. 29.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
30. 30.⚖️ 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
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) a towel for spills (c) a tub of water (d) small test objects
32. 32.⚖️ 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) False (b) True
33. 33.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
34. 34.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the big log (c) the small pebble (d) neither of them
35. 35.🔍 Which is the odd one out? (a) a glass marble (b) an iron nail (c) an ice cube (d) a pebble
36. 36.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
37. 37.🔮 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
38. 38.🔍 Which is the odd one out? (a) an ice cube (b) a steel spoon (c) an empty capped bottle (d) a cork
39. 39.True or false: an ice-cream stick sinks in water. (a) False (b) True
40. 40.True or false: a ball of clay sinks in water. (a) True (b) False

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