Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 190 · 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: a magnet is not needed for the float-or-sink test. (a) False (b) True
2. 2.🛟 Which of these sinks in water? (a) a cork (b) an empty capped bottle (c) a metal key (d) an ice-cream stick
3. 3.True or false: a feather floats on water. (a) True (b) False
4. 4.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) True (b) False
5. 5.⚖️ 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 shape of the clay (d) the kind of clay
6. 6.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) a mirror (d) a results table
7. 7.⚖️ 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
8. 8.🧺 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 towel for spills (d) a battery cell
9. 9.🛟 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) leave water on the floor (d) run around the tub
10. 10.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) it has a magnet (c) steel is very light (d) its hollow shape
11. 11.🧺 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) small test objects (d) a results table
12. 12.⚖️ 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) True (b) False
13. 13.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) a dry leaf (b) an ice cube (c) a piece of thermocol (d) a pebble
15. 15.⚖️ 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
16. 16.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
17. 17.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it sinks (c) it turns blue (d) it melts
18. 18.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
19. 19.⚖️ 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 measure it (b) we change it (c) we keep it the same
20. 20.🌊 What pushes a floating cork upward? (a) the cork itself (b) the water (c) the tub (d) the air above
21. 21.🧺 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) a magnet (d) a results table
22. 22.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to keep children safe (c) to hide the corks (d) to win a prize
23. 23.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
24. 24.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) turmeric powder (c) a mirror (d) a magnet
25. 25.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
26. 26.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
27. 27.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
28. 28.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
29. 29.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
30. 30.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) True (b) False
31. 31.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it sinks faster (c) it can float (d) it dissolves
32. 32.🛟 Which of these floats on water? (a) a metal key (b) a pebble (c) a coin (d) a ping-pong ball
33. 33.🔍 Which is the odd one out? (a) a ball of clay (b) a cork (c) a piece of thermocol (d) an ice-cream stick
34. 34.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it turns white (c) it still floats (d) it sinks
35. 35.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
36. 36.🛟 Which of these floats on water? (a) a coin (b) a glass marble (c) an iron nail (d) an ice cube
37. 37.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
38. 38.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) a mirror (c) a battery cell (d) a magnet
39. 39.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) False (b) True
40. 40.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed

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