Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 960 · 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? True or false: the tub of water is kept the same. (a) False (b) True
2. 2.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) more plain water (c) lots of salt stirred in (d) a little shaking
3. 3.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
4. 4.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) its hollow shape (c) steel is very light (d) sea water is warm
5. 5.True or false: a ping-pong ball floats on water. (a) True (b) False
6. 6.⚖️ 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 measure it (c) we keep it the same
7. 7.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) a cork (b) an ice-cream stick (c) a dry leaf (d) an iron nail
9. 9.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it melts (c) it sinks (d) it floats higher
10. 10.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a results table (d) a battery cell
11. 11.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
12. 12.⚖️ 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
13. 13.🌊 What pushes a floating cork upward? (a) the tub (b) the cork itself (c) the water (d) the air above
14. 14.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
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 keep it the same (b) we measure it (c) we change it
16. 16.🔍 Which is the odd one out? (a) a ball of clay (b) a coin (c) an ice cube (d) a pebble
17. 17.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
18. 18.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
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 keep it the same (b) we change it (c) we measure it
20. 20.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to hide the corks (d) to keep children safe
21. 21.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
22. 22.⚖️ 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 shape of the clay (b) the amount of clay (c) the tub of water (d) the kind of clay
23. 23.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a mirror (d) a towel for spills
24. 24.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
25. 25.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) an empty capped bottle (b) a pebble (c) a steel spoon (d) a metal key
27. 27.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a dry leaf (c) a ball of clay (d) a cork
28. 28.⚖️ 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 keep it the same (c) we measure it
29. 29.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
30. 30.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a magnet (c) turmeric powder (d) a results table
31. 31.🧺 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) a towel for spills (d) small test objects
32. 32.🔍 Which is the odd one out? (a) a pebble (b) a ping-pong ball (c) a dry leaf (d) an ice cube
33. 33.🛟 Which of these floats on water? (a) a metal key (b) a pebble (c) a ping-pong ball (d) a ball of clay
34. 34.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) wipe up spills at once (c) run around the tub (d) leave water on the floor
35. 35.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a tub of water (c) a results table (d) small test objects
36. 36.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
37. 37.⚖️ 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) True (b) False
38. 38.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) a mirror (d) small test objects
39. 39.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) yeast (c) a balloon (d) a tub of water
40. 40.True or false: a cork floats on water. (a) False (b) True

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