Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 227 · 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? True or false: the amount of clay is the one thing we change. (a) True (b) False
2. 2.🛟 Which of these floats on water? (a) a coin (b) a ping-pong ball (c) a glass marble (d) a pebble
3. 3.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a towel for spills (d) a balloon
4. 4.True or false: an ice cube floats on water. (a) True (b) False
5. 5.True or false: an ice-cream stick floats on water. (a) False (b) True
6. 6.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it still floats (c) it sinks (d) it turns white
7. 7.⚖️ 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) True (b) False
8. 8.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
9. 9.🧺 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) a magnet
10. 10.⚖️ 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 change it (c) we keep it the same
11. 11.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
12. 12.⚖️ 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) the shape of the clay (d) whether it floats
13. 13.🛟 Which of these sinks in water? (a) a piece of thermocol (b) an empty capped bottle (c) an iron nail (d) a ping-pong ball
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 tub of water is needed for the float-or-sink test. (a) False (b) True
16. 16.🛟 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) play near a deep pond (d) run around the tub
17. 17.🛟 Which of these floats on water? (a) an empty capped bottle (b) an iron nail (c) a metal key (d) a ball of clay
18. 18.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
19. 19.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
20. 20.⚖️ 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 keep it the same (c) we change it
21. 21.⚖️ 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
22. 22.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
23. 23.⚖️ 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
24. 24.True or false: an iron nail sinks in water. (a) False (b) True
25. 25.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
26. 26.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
27. 27.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
28. 28.🛟 Which of these floats on water? (a) a glass marble (b) a steel spoon (c) an iron nail (d) an ice cube
29. 29.True or false: a steel spoon floats on water. (a) True (b) False
30. 30.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a balloon (c) a results table (d) a battery cell
31. 31.🛟 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
32. 32.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
33. 33.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it sinks (c) it floats higher (d) it turns blue
34. 34.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) both of them (c) the small pebble (d) neither of them
35. 35.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it sinks faster (c) it turns to stone (d) it can float
36. 36.⚖️ 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
37. 37.🔍 Which is the odd one out? (a) a steel spoon (b) a coin (c) an ice cube (d) an iron nail
38. 38.🧊 Why does an ice cube float on water? (a) ice is less dense (b) water is sticky (c) ice is magnetic (d) ice is very cold
39. 39.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a tub of water (d) a mirror
40. 40.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) sea water is warm (c) steel is very light (d) its hollow shape

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