Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 257 · 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.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
2. 2.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a balloon (d) a tub of water
3. 3.🔍 Which is the odd one out? (a) a pebble (b) a dry leaf (c) a coin (d) a metal key
4. 4.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
5. 5.⚖️ 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 amount of clay
6. 6.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
7. 7.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
8. 8.⚖️ 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
9. 9.True or false: a glass marble floats on water. (a) True (b) False
10. 10.🛟 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 hide the corks (d) to keep children safe
11. 11.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a balloon (d) a towel for spills
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) yeast (d) small test objects
13. 13.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a tub of water (c) yeast (d) a battery cell
14. 14.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
15. 15.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
16. 16.🔍 Which is the odd one out? (a) a ping-pong ball (b) a steel spoon (c) an ice-cream stick (d) a piece of thermocol
17. 17.🔍 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
18. 18.🛟 Which of these floats on water? (a) a pebble (b) a ball of clay (c) a glass marble (d) a feather
19. 19.⚖️ 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 amount of clay (c) the shape of the clay (d) the kind of clay
20. 20.⚖️ 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
21. 21.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) steel is very light (c) its hollow shape (d) sea water is warm
22. 22.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) play near a deep pond (c) run around the tub (d) leave water on the floor
23. 23.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a results table (c) a towel for spills (d) small test objects
24. 24.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
25. 25.🔮 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 sinks faster (d) it turns to stone
26. 26.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a mirror (c) small test objects (d) turmeric powder
27. 27.⚖️ 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 keep it the same (b) we change it (c) we measure it
28. 28.🛟 Does a pebble 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) False (b) True
30. 30.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is less dense (c) ice is magnetic (d) water is sticky
31. 31.True or false: an ice-cream stick sinks in water. (a) True (b) False
32. 32.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a towel for spills (c) a results table (d) a mirror
33. 33.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
34. 34.🧺 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 tub of water (d) a mirror
35. 35.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
36. 36.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
37. 37.True or false: an empty capped bottle floats on water. (a) True (b) False
38. 38.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) neither of them (c) the big log (d) the small pebble
39. 39.🔍 Which is the odd one out? (a) a coin (b) a steel spoon (c) a glass marble (d) a cork
40. 40.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed

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