Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 944 · 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 shape of the clay is kept the same. (a) False (b) True
2. 2.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is magnetic (c) ice is less dense (d) ice is very cold
3. 3.True or false: a glass marble floats on water. (a) True (b) False
4. 4.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it sinks faster (c) it can float (d) it dissolves
5. 5.⚖️ 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) whether it floats (d) the tub of water
6. 6.⚖️ 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) False (b) True
7. 7.🔍 Which is the odd one out? (a) a ping-pong ball (b) a piece of thermocol (c) a dry leaf (d) a steel spoon
8. 8.🛟 Which of these floats on water? (a) a metal key (b) a glass marble (c) an empty capped bottle (d) a steel spoon
9. 9.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) a balloon (d) small test objects
10. 10.🛟 Does a feather float or sink in water? (a) floats (b) sinks
11. 11.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) True (b) False
12. 12.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
13. 13.True or false: a dry leaf sinks in water. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) an ice cube (b) a glass marble (c) a metal key (d) a coin
15. 15.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) small test objects (c) a tub of water (d) a towel for spills
16. 16.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) small test objects (d) a mirror
17. 17.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
18. 18.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
19. 19.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
20. 20.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
21. 21.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to win a prize (c) to keep children safe (d) to splash everyone
22. 22.True or false: an ice cube floats on water. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) a pebble (b) a cork (c) a steel spoon (d) a glass marble
24. 24.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) lots of salt stirred in (c) a few ice cubes (d) a little shaking
25. 25.🛟 Which of these floats on water? (a) a steel spoon (b) a glass marble (c) a ping-pong ball (d) a coin
26. 26.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it floats (c) it dissolves (d) it sinks
27. 27.🛟 Which of these floats on water? (a) a ball of clay (b) an iron nail (c) a coin (d) a cork
28. 28.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the tub of water (b) the amount of clay (c) whether it floats (d) the shape of the clay
29. 29.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
30. 30.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a magnet (c) a mirror (d) a tub of water
31. 31.🛟 Does a cork float or sink in water? (a) floats (b) sinks
32. 32.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) wipe up spills at once (c) leave water on the floor (d) run around the tub
33. 33.⚖️ 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
34. 34.⚖️ 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
35. 35.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the water (d) the tub
36. 36.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
37. 37.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
38. 38.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) True (b) False
39. 39.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a magnet (d) a tub of water
40. 40.🔮 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

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