Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 868 · 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.True or false: a ping-pong ball sinks in water. (a) True (b) False
2. 2.🧺 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) a towel for spills
3. 3.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is magnetic (c) water is sticky (d) ice is less dense
4. 4.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the kind of clay (c) the amount of clay (d) the shape of the clay
5. 5.🔍 Which is the odd one out? (a) an empty capped bottle (b) a ping-pong ball (c) an ice cube (d) a metal key
6. 6.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
7. 7.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
8. 8.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to hide the corks (c) to splash everyone (d) to keep children safe
9. 9.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a mirror (d) a results table
10. 10.⚖️ 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 change it (b) we keep it the same (c) we measure it
11. 11.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it dissolves (c) it sinks (d) it still floats
12. 12.True or false: an ice-cream stick sinks in water. (a) False (b) True
13. 13.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it dissolves (c) it sinks (d) it floats
14. 14.🔍 Which is the odd one out? (a) a ball of clay (b) an empty capped bottle (c) an ice cube (d) a feather
15. 15.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) turmeric powder (d) a tub of water
16. 16.True or false: a dry leaf sinks in water. (a) True (b) False
17. 17.🛟 Which of these floats on water? (a) a metal key (b) a pebble (c) a ball of clay (d) a cork
18. 18.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
19. 19.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a tub of water (d) a balloon
20. 20.🔍 Which is the odd one out? (a) a pebble (b) an iron nail (c) a coin (d) a ping-pong ball
21. 21.🛟 Which of these floats on water? (a) an ice cube (b) a metal key (c) a steel spoon (d) a ball of clay
22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a results table (d) a magnet
23. 23.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
24. 24.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
25. 25.⚖️ 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 keep it the same (b) we change it (c) we measure it
26. 26.🛟 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
27. 27.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
28. 28.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a piece of thermocol (c) an empty capped bottle (d) an iron nail
29. 29.True or false: an iron nail floats on water. (a) True (b) False
30. 30.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it turns to stone (c) it dissolves (d) it sinks faster
31. 31.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) lots of salt stirred in (c) a little shaking (d) a few ice cubes
32. 32.⚖️ 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 keep it the same (b) we measure it (c) we change it
33. 33.⚖️ 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 keep it the same (b) we measure it (c) we change it
34. 34.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it melts (c) it floats higher (d) it turns blue
35. 35.⚖️ 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) the shape of the clay (c) the kind of clay (d) whether it floats
36. 36.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a battery cell (c) turmeric powder (d) small test objects
37. 37.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
38. 38.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
39. 39.True or false: a pebble floats on water. (a) False (b) True
40. 40.🛟 Does a coin float or sink in water? (a) floats (b) sinks

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