Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 680 · 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.🚢 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
2. 2.🔍 Which is the odd one out? (a) a piece of thermocol (b) an ice-cream stick (c) a glass marble (d) an empty capped bottle
3. 3.True or false: a feather sinks in water. (a) False (b) True
4. 4.🛟 Which of these sinks in water? (a) an ice cube (b) an empty capped bottle (c) a ball of clay (d) a piece of thermocol
5. 5.⚖️ 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 kind of clay (d) the amount of clay
6. 6.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) a battery cell (c) a magnet (d) yeast
7. 7.⚖️ 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 keep it the same (c) we measure it
8. 8.🧺 Which of these is not needed for the float-or-sink test? (a) yeast (b) small test objects (c) a towel for spills (d) a results table
9. 9.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to win a prize (c) to hide the corks (d) to keep children safe
10. 10.🛟 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) play near a deep pond (d) run around the tub
11. 11.🔍 Which is the odd one out? (a) a feather (b) an ice-cream stick (c) an ice cube (d) a metal key
12. 12.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
13. 13.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
14. 14.⚖️ 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 kind of clay (b) the amount of clay (c) the shape of the clay (d) whether it floats
15. 15.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it sinks (c) it bounces up (d) it dissolves
16. 16.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a towel for spills (c) small test objects (d) a magnet
17. 17.True or false: an iron nail floats on water. (a) False (b) True
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 tub of water (b) whether it floats (c) the shape of the clay
19. 19.🔍 Which is the odd one out? (a) a coin (b) a steel spoon (c) a metal key (d) a ping-pong ball
20. 20.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) neither of them (c) the small pebble (d) both of them
21. 21.⚖️ 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 measure it (c) we keep it the same
22. 22.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
23. 23.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a tub of water (c) small test objects (d) a towel for spills
24. 24.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) a results table (c) a tub of water (d) a towel for spills
26. 26.🧺 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 mirror (d) small test objects
27. 27.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
28. 28.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a battery cell (c) small test objects (d) a tub of water
29. 29.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) turmeric powder (c) a magnet (d) a results table
30. 30.🛟 Which of these floats on water? (a) a ball of clay (b) a glass marble (c) a pebble (d) a piece of thermocol
31. 31.🛟 Which of these floats on water? (a) a steel spoon (b) a dry leaf (c) a glass marble (d) an iron nail
32. 32.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
33. 33.🛟 Which of these floats on water? (a) a steel spoon (b) a glass marble (c) an iron nail (d) a ping-pong ball
34. 34.True or false: a steel spoon sinks in water. (a) True (b) False
35. 35.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it sinks (d) it turns blue
36. 36.🔍 Which is the odd one out? (a) a coin (b) a feather (c) an ice-cream stick (d) a ping-pong ball
37. 37.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) small test objects (c) a results table (d) a tub of water
38. 38.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
39. 39.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
40. 40.True or false: a pebble sinks in water. (a) True (b) False

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