Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 550 · 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.⚖️ 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 change it (b) we measure it (c) we keep it the same
2. 2.🛟 Which of these floats on water? (a) a steel spoon (b) a coin (c) a glass marble (d) a dry leaf
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 shape of the clay (b) whether it floats (c) the kind of clay
4. 4.🧺 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 mirror (d) a tub of water
5. 5.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a coin (c) a ping-pong ball (d) a dry leaf
6. 6.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
7. 7.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) leave water on the floor (d) wipe up spills at once
8. 8.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
9. 9.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
10. 10.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
11. 11.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
12. 12.🧺 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) yeast
13. 13.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) yeast (c) a mirror (d) small test objects
14. 14.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) False (b) True
15. 15.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it dissolves (c) it turns white (d) it sinks
16. 16.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
17. 17.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a balloon (c) a tub of water (d) a results table
18. 18.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to keep children safe (c) to splash everyone (d) to win a prize
19. 19.⚖️ 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) the tub of water (c) whether it floats
20. 20.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
21. 21.🔍 Which is the odd one out? (a) a ball of clay (b) an iron nail (c) an ice cube (d) a pebble
22. 22.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a tub of water (d) a magnet
23. 23.⚖️ 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
24. 24.⚖️ 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
25. 25.🛟 Which of these sinks in water? (a) a pebble (b) an ice cube (c) a feather (d) a ping-pong ball
26. 26.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
27. 27.🛟 Does an empty capped bottle 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 balloon (b) a tub of water (c) small test objects (d) a towel for spills
29. 29.🛟 Which of these floats on water? (a) a steel spoon (b) a ball of clay (c) a coin (d) an empty capped bottle
30. 30.🧺 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) small test objects (d) turmeric powder
31. 31.🧺 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) a magnet (d) a tub of water
32. 32.⚖️ 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 keep it the same (b) we change it (c) we measure it
33. 33.🌊 What pushes a floating cork upward? (a) the cork itself (b) the water (c) the air above (d) the tub
34. 34.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it can float (c) it turns to stone (d) it dissolves
35. 35.🔍 Which is the odd one out? (a) a steel spoon (b) a metal key (c) a dry leaf (d) a glass marble
36. 36.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is very cold (c) ice is magnetic (d) ice is less dense
37. 37.🚢 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
38. 38.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
39. 39.⚖️ 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 tub of water (c) whether it floats (d) the shape of the clay
40. 40.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False

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