Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 848 · 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.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a battery cell (c) a tub of water (d) a results table
2. 2.⚖️ 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 measure it (b) we keep it the same (c) we change it
3. 3.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) water is sticky (c) ice is less dense (d) ice is very cold
4. 4.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
5. 5.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) a balloon (c) a battery cell (d) a mirror
6. 6.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
7. 7.True or false: a metal key sinks in water. (a) False (b) True
8. 8.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a little shaking (c) a few ice cubes (d) lots of salt stirred in
9. 9.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
10. 10.🛟 Which of these sinks in water? (a) a cork (b) a dry leaf (c) a ping-pong ball (d) an iron nail
11. 11.True or false: a glass marble sinks in water. (a) True (b) False
12. 12.🛟 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 keep children safe (d) to win a prize
13. 13.🔮 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
14. 14.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
15. 15.True or false: an ice-cream stick sinks in water. (a) False (b) True
16. 16.⚖️ 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
17. 17.🔍 Which is the odd one out? (a) a metal key (b) a piece of thermocol (c) a cork (d) an ice cube
18. 18.⚖️ 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
19. 19.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a ball of clay (c) a cork (d) a feather
20. 20.True or false: a ball of clay sinks in water. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) an ice-cream stick (b) a coin (c) a ping-pong ball (d) a dry leaf
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 what we measure. (a) False (b) True
23. 23.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
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 keep it the same (c) we measure it
25. 25.⚖️ 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) whether it floats (c) the shape of the clay (d) the amount of clay
26. 26.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it sinks (c) it dissolves (d) it turns white
27. 27.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) a balloon (d) small test objects
28. 28.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
29. 29.🔍 Which is the odd one out? (a) a ping-pong ball (b) an ice-cream stick (c) a piece of thermocol (d) a ball of clay
30. 30.🛟 Which of these sinks in water? (a) an empty capped bottle (b) an ice-cream stick (c) a pebble (d) a feather
31. 31.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
32. 32.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) leave water on the floor (c) run around the tub (d) wipe up spills at once
33. 33.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
34. 34.True or false: a coin floats on water. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) a metal key (b) a steel spoon (c) a coin (d) a feather
36. 36.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) a pebble (b) a ball of clay (c) an iron nail (d) a ping-pong ball
38. 38.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) False (b) True
39. 39.⚖️ 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 kind of clay
40. 40.⚖️ 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

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