Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 193 · 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 ball of clay (b) a metal key (c) a dry leaf (d) a coin
2. 2.🛟 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
3. 3.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
4. 4.🛟 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
5. 5.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it sinks (c) it dissolves (d) it floats
6. 6.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the shape of the clay (c) the tub of water (d) the amount of clay
7. 7.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a balloon (c) a magnet (d) a results table
8. 8.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) an empty capped bottle (b) a ping-pong ball (c) a pebble (d) a piece of thermocol
10. 10.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a battery cell (c) small test objects (d) a results table
11. 11.⚖️ 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
12. 12.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it floats higher (c) it melts (d) it sinks
13. 13.🔍 Which is the odd one out? (a) a pebble (b) a ball of clay (c) an empty capped bottle (d) an iron nail
14. 14.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
15. 15.⚖️ 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
16. 16.🛟 Which of these floats on water? (a) a feather (b) a ball of clay (c) a glass marble (d) an iron nail
17. 17.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it still floats (c) it sinks (d) it dissolves
18. 18.🧺 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 tub of water (d) a magnet
19. 19.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a balloon (c) a towel for spills (d) a magnet
20. 20.🛟 Which of these floats on water? (a) a coin (b) a ball of clay (c) a pebble (d) an ice-cream stick
21. 21.⚖️ 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
22. 22.🌊 What pushes a floating cork upward? (a) the water (b) the cork itself (c) the tub (d) the air above
23. 23.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
24. 24.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a mirror (c) small test objects (d) a tub of water
25. 25.🔍 Which is the odd one out? (a) a coin (b) an ice cube (c) an ice-cream stick (d) a feather
26. 26.🧺 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 results table (d) yeast
27. 27.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) its hollow shape (c) it has a magnet (d) steel is very light
28. 28.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
29. 29.⚖️ 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 measure it (c) we change it
30. 30.🧺 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) a balloon (d) small test objects
31. 31.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the kind of clay (c) the amount of clay (d) the shape of the clay
33. 33.🛟 Does a cork float or sink in water? (a) floats (b) sinks
34. 34.🔍 Which is the odd one out? (a) a feather (b) a metal key (c) a steel spoon (d) a coin
35. 35.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
36. 36.True or false: a balloon is not needed for the float-or-sink test. (a) True (b) False
37. 37.⚖️ 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 measure it (b) we change it (c) we keep it the same
38. 38.True or false: a steel spoon floats on water. (a) True (b) False
39. 39.🧊 Why does an ice cube float on water? (a) ice is very cold (b) water is sticky (c) ice is less dense (d) ice is magnetic
40. 40.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed

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