Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 262 · 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? Which of these is the one thing we change? (a) whether it floats (b) the shape of the clay (c) the tub of water (d) the amount of clay
2. 2.True or false: a dry leaf floats on water. (a) True (b) False
3. 3.🔮 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
4. 4.⚖️ 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 measure it (b) we keep it the same (c) we change it
5. 5.🛟 Which of these sinks in water? (a) a cork (b) an ice-cream stick (c) an empty capped bottle (d) a ball of clay
6. 6.🌊 What pushes a floating cork upward? (a) the tub (b) the cork itself (c) the air above (d) the water
7. 7.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
8. 8.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
9. 9.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a battery cell (c) small test objects (d) a tub of water
10. 10.🧊 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
11. 11.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
12. 12.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) the kind of clay (c) the tub of water (d) whether it floats
13. 13.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
14. 14.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) small test objects (c) a mirror (d) a battery cell
15. 15.⚖️ 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 measure it (c) we change it
16. 16.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) a tub of water (c) a results table (d) a towel for spills
17. 17.⚖️ 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 keep it the same (c) we change it
18. 18.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) yeast (d) a results table
19. 19.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) its hollow shape (c) sea water is warm (d) steel is very light
20. 20.🔍 Which is the odd one out? (a) a metal key (b) a feather (c) a pebble (d) an iron nail
21. 21.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
22. 22.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
23. 23.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
24. 24.🛟 Which of these floats on water? (a) a pebble (b) an ice cube (c) a coin (d) an iron nail
25. 25.🔍 Which is the odd one out? (a) a coin (b) a steel spoon (c) a pebble (d) a piece of thermocol
26. 26.True or false: a metal key sinks in water. (a) False (b) True
27. 27.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) leave water on the floor (c) run around the tub (d) play near a deep pond
28. 28.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a mirror (c) a magnet (d) a tub of water
29. 29.⚖️ 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
30. 30.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a towel for spills (d) a magnet
32. 32.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
33. 33.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) turmeric powder (d) a tub of water
34. 34.🛟 Which of these floats on water? (a) a metal key (b) a coin (c) an ice-cream stick (d) a ball of clay
35. 35.⚖️ 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
36. 36.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
37. 37.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
38. 38.⚖️ 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 keep it the same (c) we change it
39. 39.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
40. 40.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to keep children safe (d) to hide the corks

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