Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 261 · 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.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
2. 2.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a results table (c) a towel for spills (d) small test objects
3. 3.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
4. 4.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it floats (c) it bounces up (d) it dissolves
5. 5.🔮 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 turns to stone (d) it can float
6. 6.🧊 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
7. 7.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
8. 8.🛟 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
9. 9.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
10. 10.⚖️ 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 amount of clay (c) whether it floats
11. 11.🛟 Which of these sinks in water? (a) a piece of thermocol (b) an empty capped bottle (c) a cork (d) a ball of clay
12. 12.⚖️ 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
13. 13.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) yeast (c) a results table (d) small test objects
14. 14.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) yeast (c) small test objects (d) a balloon
15. 15.🧺 Which of these is not needed for the float-or-sink test? (a) a balloon (b) small test objects (c) a towel for spills (d) a tub of water
16. 16.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a towel for spills (d) yeast
17. 17.🔮 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
18. 18.🛟 Does a cork 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 change it (b) we measure it (c) we keep it the same
20. 20.⚖️ 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 keep it the same (c) we measure it
21. 21.🛟 Which of these sinks in water? (a) a dry leaf (b) a piece of thermocol (c) a coin (d) a cork
22. 22.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) lots of salt stirred in (c) a little shaking (d) more plain water
23. 23.🔍 Which is the odd one out? (a) a ball of clay (b) a coin (c) a cork (d) a metal key
24. 24.True or false: an ice-cream stick sinks in water. (a) False (b) True
25. 25.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a magnet (c) a towel for spills (d) a results table
26. 26.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
27. 27.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
28. 28.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
29. 29.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) it has a magnet (c) its hollow shape (d) sea water is warm
30. 30.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
31. 31.🛟 Which of these floats on water? (a) a steel spoon (b) a coin (c) an iron nail (d) an ice cube
32. 32.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
33. 33.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
34. 34.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) yeast (c) a tub of water (d) a balloon
35. 35.True or false: a dry leaf floats on water. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) a dry leaf (b) a steel spoon (c) a feather (d) an ice-cream stick
37. 37.⚖️ 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
38. 38.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) True (b) False
39. 39.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
40. 40.⚖️ 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) True (b) False

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