Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 935 · 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.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
2. 2.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
3. 3.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
4. 4.🛟 Does a ball of clay float or sink in water? (a) sinks (b) floats
5. 5.🛟 Which of these floats on water? (a) a coin (b) an ice-cream stick (c) a steel spoon (d) a ball of clay
6. 6.🔮 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 turns to stone (d) it dissolves
7. 7.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it still floats (c) it sinks (d) it turns white
8. 8.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
9. 9.⚖️ 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
10. 10.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
11. 11.⚖️ 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
12. 12.🛟 Which of these sinks in water? (a) an ice cube (b) a metal key (c) a dry leaf (d) a piece of thermocol
13. 13.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
14. 14.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a magnet (c) a towel for spills (d) a tub of water
15. 15.True or false: an empty capped bottle floats on water. (a) True (b) False
16. 16.🛟 Which of these floats on water? (a) an iron nail (b) a coin (c) a dry leaf (d) a glass marble
17. 17.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) True (b) False
18. 18.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the amount of clay”? (a) we change it (b) we measure it (c) we keep it the same
19. 19.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a towel for spills (c) a balloon (d) small test objects
20. 20.True or false: a cork floats on water. (a) False (b) True
21. 21.⚖️ 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) True (b) False
22. 22.⚖️ 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
23. 23.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it turns blue (c) it sinks (d) it melts
24. 24.🔍 Which is the odd one out? (a) a cork (b) a piece of thermocol (c) a pebble (d) an ice cube
25. 25.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a towel for spills (d) a mirror
26. 26.🔍 Which is the odd one out? (a) a steel spoon (b) a coin (c) a glass marble (d) an ice cube
27. 27.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a results table (d) yeast
28. 28.🛟 Which of these sinks in water? (a) a dry leaf (b) an ice-cream stick (c) a cork (d) an iron nail
29. 29.🔍 Which is the odd one out? (a) a dry leaf (b) a feather (c) a cork (d) a glass marble
30. 30.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) a balloon (d) small test objects
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a results table (d) yeast
32. 32.True or false: an ice-cream stick floats on water. (a) True (b) False
33. 33.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a results table (d) a magnet
34. 34.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) it has a magnet (c) steel is very light (d) its hollow shape
35. 35.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) water is sticky (d) ice is less dense
36. 36.🔍 Which is the odd one out? (a) a glass marble (b) a metal key (c) a ball of clay (d) a ping-pong ball
37. 37.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) a little shaking (c) more plain water (d) lots of salt stirred in
38. 38.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) small test objects (d) a battery cell
39. 39.True or false: a metal key sinks in water. (a) True (b) False
40. 40.⚖️ 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

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