Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 714 · 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 floats on water? (a) a pebble (b) a metal key (c) a cork (d) a ball of clay
2. 2.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) the shape of the clay (c) whether it floats
4. 4.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) False (b) True
5. 5.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
6. 6.🔍 Which is the odd one out? (a) a coin (b) an empty capped bottle (c) a dry leaf (d) a cork
7. 7.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
8. 8.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
9. 9.⚖️ 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
10. 10.🧺 Which of these is not needed for the float-or-sink test? (a) yeast (b) a results table (c) a tub of water (d) small test objects
11. 11.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it can float (c) it dissolves (d) it sinks faster
12. 12.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a feather (c) an ice cube (d) a glass marble
13. 13.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a results table (c) a mirror (d) a magnet
14. 14.True or false: an ice cube floats on water. (a) True (b) False
15. 15.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is kept the same. (a) False (b) True
16. 16.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) a cork (b) a ball of clay (c) a piece of thermocol (d) an empty capped bottle
18. 18.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
19. 19.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a towel for spills (d) a magnet
20. 20.⚖️ 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 measure it (c) we keep it the same
21. 21.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to keep children safe (c) to hide the corks (d) to splash everyone
22. 22.True or false: a steel spoon sinks in water. (a) True (b) False
23. 23.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) it has a magnet (c) sea water is warm (d) its hollow shape
24. 24.⚖️ 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
25. 25.⚖️ 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
26. 26.🔍 Which is the odd one out? (a) a ping-pong ball (b) a metal key (c) a dry leaf (d) a piece of thermocol
27. 27.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) a results table (d) a balloon
28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) a magnet (d) a tub of water
29. 29.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a battery cell (c) a towel for spills (d) a tub of water
30. 30.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
31. 31.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) water is sticky (c) ice is less dense (d) ice is very cold
32. 32.🛟 Which of these floats on water? (a) a glass marble (b) an iron nail (c) a coin (d) a feather
33. 33.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) False (b) True
35. 35.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
36. 36.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) both of them (c) the small pebble (d) the big log
37. 37.True or false: yeast is not needed for the float-or-sink test. (a) True (b) False
38. 38.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) a balloon (c) turmeric powder (d) a mirror
39. 39.🔍 Which is the odd one out? (a) a coin (b) a metal key (c) a ball of clay (d) a dry leaf
40. 40.🛟 Which of these sinks in water? (a) a pebble (b) an empty capped bottle (c) a cork (d) a feather

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