Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 673 · 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.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to splash everyone (c) to keep children safe (d) to win a prize
2. 2.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a mirror (c) a towel for spills (d) a tub of water
3. 3.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
4. 4.⚖️ 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 amount of clay (c) the shape of the clay (d) whether it floats
5. 5.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a battery cell (c) small test objects (d) a towel for spills
6. 6.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
7. 7.🛟 Which of these floats on water? (a) a pebble (b) a steel spoon (c) an empty capped bottle (d) a coin
8. 8.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
9. 9.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it turns blue (d) it sinks
10. 10.🔮 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 dissolves (d) it can float
11. 11.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) turmeric powder (c) a tub of water (d) a magnet
12. 12.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
13. 13.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
14. 14.True or false: a glass marble sinks in water. (a) False (b) True
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 what we measure. (a) True (b) False
16. 16.🔍 Which is the odd one out? (a) a coin (b) an ice-cream stick (c) a glass marble (d) a pebble
17. 17.⚖️ 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
18. 18.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
19. 19.⚖️ 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
20. 20.🔍 Which is the odd one out? (a) a piece of thermocol (b) a steel spoon (c) a coin (d) a glass marble
21. 21.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
22. 22.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it still floats (c) it dissolves (d) it sinks
23. 23.True or false: a towel for spills is not 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) a battery cell (c) a balloon (d) a magnet
25. 25.🛟 Which of these sinks in water? (a) a cork (b) a steel spoon (c) a ping-pong ball (d) an ice-cream stick
26. 26.True or false: a ball of clay floats on water. (a) True (b) False
27. 27.⚖️ 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
28. 28.⚖️ 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 amount of clay
29. 29.🛟 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
30. 30.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
31. 31.⚖️ 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) True (b) False
32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we keep it the same (c) we measure it
33. 33.🧺 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) small test objects (d) a magnet
34. 34.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
35. 35.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
36. 36.🛟 Which of these sinks in water? (a) an ice-cream stick (b) an ice cube (c) a metal key (d) a feather
37. 37.🔍 Which is the odd one out? (a) an ice cube (b) a steel spoon (c) an ice-cream stick (d) a piece of thermocol
38. 38.⚖️ 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 measure it (b) we change it (c) we keep it the same
39. 39.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
40. 40.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed

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