Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 369 · 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.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
2. 2.🛟 Does a cork float or sink in water? (a) floats (b) sinks
3. 3.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) steel is very light (c) its hollow shape (d) it has a magnet
4. 4.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) False (b) True
5. 5.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) yeast (d) small test objects
7. 7.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) False (b) True
8. 8.⚖️ 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 change it (c) we measure it
9. 9.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it bounces up (c) it floats (d) it sinks
10. 10.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
11. 11.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is the one thing we change. (a) False (b) True
12. 12.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) True (b) False
13. 13.True or false: a feather floats on water. (a) False (b) True
14. 14.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) the big log (c) neither of them (d) both of them
15. 15.🛟 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
16. 16.🔍 Which is the odd one out? (a) a glass marble (b) a cork (c) a coin (d) an iron nail
17. 17.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a magnet (c) yeast (d) a results table
18. 18.🔍 Which is the odd one out? (a) a metal key (b) a steel spoon (c) an ice-cream stick (d) an iron nail
19. 19.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) a coin (b) a cork (c) an ice-cream stick (d) an ice cube
21. 21.⚖️ 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 kind of clay
22. 22.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
23. 23.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a magnet (c) small test objects (d) yeast
24. 24.🛟 Which of these floats on water? (a) a coin (b) an iron nail (c) a pebble (d) an ice cube
25. 25.⚖️ 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) whether it floats (c) the tub of water
26. 26.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
27. 27.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) ice is less dense (d) water is sticky
28. 28.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
29. 29.True or false: a pebble floats on water. (a) True (b) False
30. 30.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a balloon (c) a mirror (d) a towel for spills
31. 31.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
32. 32.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it still floats (c) it sinks (d) it turns white
33. 33.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
34. 34.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
35. 35.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) play near a deep pond (d) wipe up spills at once
36. 36.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
37. 37.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
38. 38.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
39. 39.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a feather (c) a ball of clay (d) a ping-pong ball
40. 40.🔍 Which is the odd one out? (a) an iron nail (b) a cork (c) a dry leaf (d) a ping-pong ball

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