Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 311 · 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.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
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) small test objects (d) turmeric powder
3. 3.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
4. 4.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a towel for spills (c) turmeric powder (d) a magnet
5. 5.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
6. 6.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) it has a magnet (c) sea water is warm (d) steel is very light
7. 7.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) the big log (c) neither of them (d) both of them
8. 8.🧺 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) small test objects (d) a magnet
9. 9.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
10. 10.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to keep children safe (c) to win a prize (d) to splash everyone
11. 11.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
12. 12.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
13. 13.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
14. 14.⚖️ 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
15. 15.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
16. 16.⚖️ 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 keep it the same (c) we change it
17. 17.🔍 Which is the odd one out? (a) a ball of clay (b) a cork (c) an ice-cream stick (d) an ice cube
18. 18.True or false: a steel spoon floats on water. (a) True (b) False
19. 19.🔮 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
20. 20.🔍 Which is the odd one out? (a) a dry leaf (b) a ping-pong ball (c) an ice cube (d) a steel spoon
21. 21.🛟 Does a coin float or sink in water? (a) floats (b) sinks
22. 22.True or false: a metal key sinks in water. (a) False (b) True
23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) the kind of clay (c) the amount of clay (d) whether it floats
24. 24.True or false: a ball of clay floats on water. (a) True (b) False
25. 25.⚖️ 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) True (b) False
26. 26.⚖️ 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) False (b) True
27. 27.🥚 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
28. 28.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) turmeric powder (c) a magnet (d) a tub of water
29. 29.⚖️ 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) False (b) True
30. 30.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it bounces up (c) it dissolves (d) it sinks
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a battery cell (c) a results table (d) a towel for spills
32. 32.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
33. 33.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
34. 34.True or false: a coin sinks in water. (a) True (b) False
35. 35.⚖️ 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
36. 36.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is less dense (c) ice is magnetic (d) ice is very cold
37. 37.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the tub (d) the water
38. 38.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it turns to stone (c) it dissolves (d) it can float
39. 39.🔍 Which is the odd one out? (a) a metal key (b) a steel spoon (c) a pebble (d) a piece of thermocol
40. 40.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) yeast (c) a results table (d) a magnet

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