Floating and Sinking Experiment Worksheet

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

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