Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 878 · 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.🛟 Which of these sinks in water? (a) a dry leaf (b) a metal key (c) a feather (d) an empty capped bottle
2. 2.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) sea water is warm (c) it has a magnet (d) its hollow shape
3. 3.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
4. 4.⚖️ 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 change it (c) we measure it
5. 5.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a magnet (c) a battery cell (d) a tub of water
6. 6.⚖️ 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) False (b) True
7. 7.⚖️ 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 keep it the same (c) we change it
8. 8.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a magnet (c) a tub of water (d) a towel for spills
9. 9.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it dissolves (c) it turns white (d) it sinks
10. 10.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
11. 11.⚖️ 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 amount of clay (c) the shape of the clay (d) the kind of clay
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) a balloon (d) small test objects
13. 13.True or false: a feather sinks in water. (a) False (b) True
14. 14.True or false: a metal key sinks in water. (a) True (b) False
15. 15.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) a balloon (c) turmeric powder (d) a battery cell
16. 16.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it sinks (c) it bounces up (d) it floats
17. 17.True or false: a glass marble floats on water. (a) False (b) True
18. 18.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to hide the corks (c) to win a prize (d) to keep children safe
19. 19.🛟 Which of these floats on water? (a) an ice cube (b) a ball of clay (c) a metal key (d) an iron nail
20. 20.⚖️ 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
21. 21.🛟 Which of these floats on water? (a) an ice-cream stick (b) a pebble (c) a metal key (d) an iron nail
22. 22.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) wipe up spills at once (c) run around the tub (d) play near a deep pond
23. 23.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it sinks (c) it melts (d) it turns blue
24. 24.⚖️ 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 measure it (c) we keep it the same
25. 25.🔍 Which is the odd one out? (a) a coin (b) an ice-cream stick (c) an iron nail (d) a pebble
26. 26.True or false: an iron nail sinks in water. (a) True (b) False
27. 27.🛟 Which of these floats on water? (a) a steel spoon (b) a ball of clay (c) a metal key (d) a piece of thermocol
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) the tub of water (c) whether it floats
29. 29.🛟 Which of these sinks in water? (a) an ice cube (b) a dry leaf (c) a cork (d) a coin
30. 30.🔍 Which is the odd one out? (a) a feather (b) an ice cube (c) an empty capped bottle (d) a glass marble
31. 31.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
32. 32.⚖️ 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 amount of clay
33. 33.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it dissolves (c) it can float (d) it turns to stone
34. 34.True or false: an iron nail floats on water. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) an ice-cream stick (b) a dry leaf (c) a pebble (d) an ice cube
36. 36.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
37. 37.True or false: a results table is 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) turmeric powder (c) a balloon (d) a battery cell
39. 39.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
40. 40.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks

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