Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 478 · 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 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
2. 2.⚖️ 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
3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the tub of water (c) the kind of clay (d) the amount of clay
4. 4.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
5. 5.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) True (b) False
6. 6.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) an empty capped bottle (b) a feather (c) a glass marble (d) a ping-pong ball
8. 8.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to win a prize (c) to hide the corks (d) to keep children safe
9. 9.🛟 Which of these floats on water? (a) a ping-pong ball (b) an iron nail (c) a steel spoon (d) a metal key
10. 10.⚖️ 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
11. 11.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) its hollow shape (c) it has a magnet (d) steel is very light
12. 12.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it turns blue (c) it floats higher (d) it sinks
13. 13.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a towel for spills (d) a magnet
14. 14.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a towel for spills (c) a results table (d) small test objects
15. 15.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a magnet (c) yeast (d) a tub of water
16. 16.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) a metal key (b) a glass marble (c) a coin (d) an empty capped bottle
18. 18.🔍 Which is the odd one out? (a) an iron nail (b) a ping-pong ball (c) a steel spoon (d) a pebble
19. 19.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
20. 20.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it turns white (c) it dissolves (d) it sinks
21. 21.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the small pebble (c) the big log (d) neither of them
22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) yeast (c) small test objects (d) a results table
23. 23.⚖️ 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) the shape of the clay (c) the amount of clay (d) the tub of water
24. 24.⚖️ 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
25. 25.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
26. 26.🛟 Which of these sinks in water? (a) a pebble (b) a feather (c) an ice cube (d) a ping-pong ball
27. 27.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it dissolves (c) it turns to stone (d) it can float
28. 28.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
29. 29.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
30. 30.🔍 Which is the odd one out? (a) a feather (b) a piece of thermocol (c) a coin (d) an ice cube
31. 31.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) a dry leaf (b) an iron nail (c) an ice-cream stick (d) a feather
33. 33.🔍 Which is the odd one out? (a) an ice-cream stick (b) an ice cube (c) a piece of thermocol (d) a ball of clay
34. 34.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
35. 35.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
36. 36.🧊 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
37. 37.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
38. 38.⚖️ 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
39. 39.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it floats (c) it sinks (d) it bounces up
40. 40.🛟 Which of these floats on water? (a) a glass marble (b) a coin (c) a steel spoon (d) a cork

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