Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 229 · 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 sinks in water? (a) a ping-pong ball (b) an ice cube (c) a ball of clay (d) an empty capped bottle
2. 2.🧺 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) a battery cell (d) small test objects
3. 3.🛟 Which of these floats on water? (a) a steel spoon (b) a coin (c) a metal key (d) an empty capped bottle
4. 4.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
5. 5.⚖️ 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 shape of the clay (c) the kind of clay
6. 6.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) a little shaking (c) a few ice cubes (d) more plain water
7. 7.🛟 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 keep children safe (d) to splash everyone
8. 8.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a tub of water (c) yeast (d) a magnet
9. 9.🛟 Which of these sinks in water? (a) a steel spoon (b) a piece of thermocol (c) a ping-pong ball (d) an empty capped bottle
10. 10.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it melts (c) it sinks (d) it floats higher
11. 11.True or false: a cork floats on water. (a) True (b) False
12. 12.🛟 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
13. 13.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
14. 14.🔮 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
15. 15.⚖️ 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) False (b) True
16. 16.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
17. 17.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
18. 18.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
19. 19.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
20. 20.True or false: a metal key floats on water. (a) True (b) False
21. 21.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
22. 22.True or false: a feather sinks in water. (a) False (b) True
23. 23.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
24. 24.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) both of them (c) neither of them (d) the small pebble
25. 25.⚖️ 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 shape of the clay (b) the kind of clay (c) the tub of water (d) the amount of clay
26. 26.🧺 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) small test objects (d) a tub of water
27. 27.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it dissolves (c) it can float (d) it sinks faster
28. 28.True or false: small test objects is not needed for the float-or-sink test. (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 tub of water”? (a) we keep it the same (b) we change it (c) we measure it
30. 30.True or false: a glass marble sinks in water. (a) True (b) False
31. 31.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) yeast (c) small test objects (d) a towel for spills
32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) whether it floats (c) the tub of water
33. 33.🔍 Which is the odd one out? (a) a steel spoon (b) a feather (c) a cork (d) a dry leaf
34. 34.🔍 Which is the odd one out? (a) a steel spoon (b) a pebble (c) a metal key (d) a feather
35. 35.🛟 Which of these floats on water? (a) an iron nail (b) a coin (c) a steel spoon (d) a ping-pong ball
36. 36.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) True (b) False
37. 37.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
38. 38.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) a magnet (d) a tub of water
39. 39.⚖️ 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
40. 40.True or false: a ping-pong ball floats on water. (a) False (b) True

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