Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 830 · 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 is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) play near a deep pond (c) run around the tub (d) leave water on the floor
2. 2.True or false: a pebble floats on water. (a) False (b) True
3. 3.True or false: an ice-cream stick sinks in water. (a) True (b) False
4. 4.True or false: a pebble sinks in water. (a) False (b) True
5. 5.🛟 Does a cork float or sink in water? (a) floats (b) sinks
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a towel for spills (d) turmeric powder
7. 7.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to win a prize (c) to hide the corks (d) to keep children safe
8. 8.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it sinks faster (c) it dissolves (d) it can float
9. 9.🔍 Which is the odd one out? (a) a piece of thermocol (b) a metal key (c) a feather (d) an empty capped bottle
10. 10.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a mirror (c) a towel for spills (d) a tub of water
11. 11.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it melts (c) it floats higher (d) it sinks
12. 12.🛟 Which of these sinks in water? (a) a dry leaf (b) a coin (c) a cork (d) an ice cube
13. 13.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) True (b) False
14. 14.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
15. 15.⚖️ 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 change it (c) we keep it the same
16. 16.True or false: an ice cube sinks in water. (a) False (b) True
17. 17.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
18. 18.⚖️ 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 kind of clay (c) the shape of the clay
19. 19.🔍 Which is the odd one out? (a) an ice-cream stick (b) an iron nail (c) a cork (d) an empty capped bottle
20. 20.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a little shaking (c) lots of salt stirred in (d) a few ice cubes
21. 21.⚖️ 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
22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) yeast (d) a towel for spills
23. 23.🔍 Which is the odd one out? (a) an ice cube (b) a glass marble (c) a metal key (d) a coin
24. 24.🛟 Which of these sinks in water? (a) a steel spoon (b) an empty capped bottle (c) a piece of thermocol (d) an ice-cream stick
25. 25.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
26. 26.⚖️ 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
27. 27.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) small test objects (c) yeast (d) a battery cell
28. 28.True or false: a steel spoon sinks in water. (a) False (b) True
29. 29.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
30. 30.⚖️ 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 tub of water (d) the shape of the clay
31. 31.⚖️ 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
32. 32.🔍 Which is the odd one out? (a) a piece of thermocol (b) a dry leaf (c) a ping-pong ball (d) a glass marble
33. 33.🔍 Which is the odd one out? (a) a pebble (b) a steel spoon (c) a coin (d) a ping-pong ball
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) a ball of clay (b) a metal key (c) a feather (d) a pebble
36. 36.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
37. 37.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
38. 38.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is magnetic (c) ice is less dense (d) water is sticky
39. 39.⚖️ 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
40. 40.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed

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