Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 851 · 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 of these is needed for the float-or-sink test? (a) turmeric powder (b) a balloon (c) a battery cell (d) a results table
2. 2.🛟 Which of these floats on water? (a) an iron nail (b) a coin (c) an empty capped bottle (d) a steel spoon
3. 3.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) small test objects (c) turmeric powder (d) yeast
4. 4.⚖️ 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) True (b) False
5. 5.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it still floats (c) it sinks (d) it dissolves
6. 6.🔍 Which is the odd one out? (a) an iron nail (b) a steel spoon (c) a piece of thermocol (d) a ball of clay
7. 7.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it sinks (c) it floats higher (d) it melts
8. 8.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) play near a deep pond (d) leave water on the floor
9. 9.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
10. 10.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
11. 11.🛟 Which of these floats on water? (a) a steel spoon (b) a metal key (c) a glass marble (d) a feather
12. 12.True or false: an ice cube floats on water. (a) False (b) True
13. 13.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it dissolves (c) it turns to stone (d) it sinks faster
14. 14.⚖️ 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 tub of water (c) the shape of the clay
15. 15.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
16. 16.🛟 Which of these floats on water? (a) a ball of clay (b) an ice cube (c) a metal key (d) an iron nail
17. 17.🔍 Which is the odd one out? (a) a metal key (b) a cork (c) a piece of thermocol (d) a ping-pong ball
18. 18.🔍 Which is the odd one out? (a) a dry leaf (b) an empty capped bottle (c) an ice-cream stick (d) a ball of clay
19. 19.⚖️ 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 kind of clay (b) whether it floats (c) the shape of the clay (d) the tub of water
20. 20.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a balloon (d) a towel for spills
21. 21.🧊 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
22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a mirror (c) small test objects (d) a tub of water
23. 23.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
24. 24.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
25. 25.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
26. 26.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
27. 27.🧺 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 towel for spills (d) a magnet
28. 28.⚖️ 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
29. 29.⚖️ 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
30. 30.🛟 Which of these sinks in water? (a) a feather (b) a dry leaf (c) an ice-cream stick (d) a coin
31. 31.True or false: a pebble floats on water. (a) True (b) False
32. 32.🛟 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
33. 33.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
34. 34.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
35. 35.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the big log (c) neither of them (d) the small pebble
36. 36.🔍 Which is the odd one out? (a) a ping-pong ball (b) a feather (c) an iron nail (d) an ice cube
37. 37.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) more plain water (c) a few ice cubes (d) lots of salt stirred in
38. 38.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
39. 39.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a mirror (c) a tub of water (d) a towel for spills
40. 40.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) whether it floats (c) the kind of clay (d) the amount of clay

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