Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 717 · 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.⚖️ 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 measure it (c) we keep it the same
2. 2.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
3. 3.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
4. 4.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
5. 5.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the tub of water (b) the shape of the clay (c) whether it floats
6. 6.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
7. 7.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a results table (c) small test objects (d) a tub of water
8. 8.⚖️ 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
9. 9.🛟 Which of these floats on water? (a) a pebble (b) an iron nail (c) a coin (d) a cork
10. 10.🔍 Which is the odd one out? (a) a pebble (b) an iron nail (c) a ball of clay (d) a piece of thermocol
11. 11.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
12. 12.⚖️ 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
13. 13.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it turns white (c) it still floats (d) it sinks
14. 14.🥚 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
15. 15.⚖️ 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
16. 16.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
17. 17.🛟 Which of these sinks in water? (a) a coin (b) a dry leaf (c) a ping-pong ball (d) an empty capped bottle
18. 18.⚖️ 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 measure it (c) we keep it the same
19. 19.🔍 Which is the odd one out? (a) a metal key (b) an ice-cream stick (c) a steel spoon (d) an iron nail
20. 20.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) both of them (c) the big log (d) neither of them
21. 21.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
22. 22.🔮 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
23. 23.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
24. 24.🔍 Which is the odd one out? (a) an ice cube (b) an iron nail (c) a ping-pong ball (d) an ice-cream stick
25. 25.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it floats higher (c) it sinks (d) it melts
26. 26.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) yeast (c) a towel for spills (d) a magnet
27. 27.🧊 Why does an ice cube float on water? (a) ice is very cold (b) water is sticky (c) ice is magnetic (d) ice is less dense
28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) small test objects (d) a battery cell
29. 29.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to keep children safe (c) to splash everyone (d) to hide the corks
30. 30.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) small test objects (d) a mirror
32. 32.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) leave water on the floor (d) wipe up spills at once
33. 33.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a tub of water (c) a towel for spills (d) a results table
34. 34.True or false: an iron nail floats on water. (a) False (b) True
35. 35.⚖️ 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) the kind of clay (c) whether it floats (d) the shape of the clay
36. 36.⚖️ 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 tub of water (c) the shape of the clay (d) whether it floats
37. 37.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
38. 38.🛟 Which of these floats on water? (a) a coin (b) a glass marble (c) an ice cube (d) an iron nail
39. 39.🛟 Which of these floats on water? (a) a steel spoon (b) a pebble (c) an ice-cream stick (d) a ball of clay
40. 40.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) a results table (d) yeast

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