Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 811 · 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.🔮 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 dissolves (d) it turns to stone
2. 2.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it dissolves (c) it sinks (d) it 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) whether it floats (b) the shape of the clay (c) the tub of water
4. 4.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
5. 5.🔍 Which is the odd one out? (a) an empty capped bottle (b) a pebble (c) an iron nail (d) a steel spoon
6. 6.⚖️ 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 tub of water (b) the shape of the clay (c) the amount of clay (d) the kind of clay
7. 7.🛟 Which of these sinks in water? (a) a ball of clay (b) a cork (c) an ice cube (d) an empty capped bottle
8. 8.⚖️ 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 measure it (c) we change it
9. 9.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) turmeric powder (c) a magnet (d) a balloon
10. 10.🧺 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) a balloon (d) small test objects
11. 11.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
12. 12.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
13. 13.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a battery cell (c) a towel for spills (d) a results table
14. 14.🛟 Which of these floats on water? (a) an iron nail (b) a pebble (c) a piece of thermocol (d) a coin
15. 15.🛟 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 win a prize (d) to keep children safe
16. 16.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
17. 17.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
18. 18.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) a towel for spills (c) a tub of water (d) a results table
19. 19.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a few ice cubes (c) a little shaking (d) lots of salt stirred in
20. 20.True or false: an ice-cream stick sinks in water. (a) False (b) True
21. 21.🛟 Which of these floats on water? (a) a pebble (b) a cork (c) a steel spoon (d) a metal key
22. 22.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
23. 23.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
24. 24.⚖️ 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
25. 25.🛟 Which of these sinks in water? (a) a metal key (b) a feather (c) a dry leaf (d) a piece of thermocol
26. 26.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we keep it the same (c) we change it
27. 27.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
28. 28.True or false: an iron nail sinks in water. (a) False (b) True
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the tub of water (b) the shape of the clay (c) whether it floats (d) the amount of clay
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 the one thing we change. (a) False (b) True
31. 31.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it floats higher (c) it melts (d) it sinks
32. 32.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
33. 33.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
34. 34.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) wipe up spills at once (d) run around the tub
35. 35.⚖️ 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
36. 36.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) a magnet (c) a battery cell (d) a balloon
37. 37.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a mirror (c) a towel for spills (d) small test objects
38. 38.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) turmeric powder (c) small test objects (d) a towel for spills
39. 39.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
40. 40.⚖️ 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

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