Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 424 · 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 of these is not needed for the float-or-sink test? (a) a towel for spills (b) turmeric powder (c) small test objects (d) a tub of water
2. 2.🚢 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
3. 3.⚖️ 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 change it (b) we keep it the same (c) we measure it
4. 4.🔮 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
5. 5.⚖️ 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 change it (c) we keep it the same
6. 6.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it turns blue (d) it sinks
7. 7.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a dry leaf (c) a steel spoon (d) an ice-cream stick
8. 8.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
9. 9.True or false: an empty capped bottle sinks in water. (a) False (b) True
10. 10.⚖️ 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 amount of clay (b) the tub of water (c) the kind of clay (d) the shape of the clay
11. 11.⚖️ 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 measure it (c) we keep it the same
12. 12.True or false: an ice cube sinks in water. (a) False (b) True
13. 13.🛟 Which of these floats on water? (a) a ball of clay (b) a pebble (c) an empty capped bottle (d) a steel spoon
14. 14.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
15. 15.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) more plain water (c) a few ice cubes (d) a little shaking
16. 16.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a balloon (c) a battery cell (d) a tub of water
17. 17.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) True (b) False
18. 18.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) yeast (c) small test objects (d) a tub of water
19. 19.🛟 Which of these floats on water? (a) a steel spoon (b) a pebble (c) an ice-cream stick (d) a ball of clay
20. 20.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to win a prize (c) to hide the corks (d) to splash everyone
21. 21.🛟 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
22. 22.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) False (b) True
23. 23.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
24. 24.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) a balloon (c) turmeric powder (d) yeast
25. 25.⚖️ 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 tub of water (c) the shape of the clay
26. 26.🧺 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
27. 27.🌊 What pushes a floating cork upward? (a) the air above (b) the tub (c) the water (d) the cork itself
28. 28.🛟 Does a feather float or sink in water? (a) sinks (b) floats
29. 29.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a towel for spills (d) a balloon
31. 31.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
32. 32.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) a magnet (d) a results table
33. 33.🛟 Which of these floats on water? (a) a ping-pong ball (b) a metal key (c) a steel spoon (d) an iron nail
34. 34.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
35. 35.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is magnetic (c) water is sticky (d) ice is very cold
36. 36.True or false: a tub of water is 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 “whether it floats”? (a) we keep it the same (b) we measure it (c) we change it
38. 38.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a balloon (c) small test objects (d) a results table
39. 39.🧺 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) turmeric powder (d) a tub of water
40. 40.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a pebble (c) a dry leaf (d) a cork

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