Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 856 · 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 a ball of clay float or sink in water? (a) sinks (b) floats
2. 2.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
3. 3.🚢 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
4. 4.🔮 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
5. 5.🔍 Which is the odd one out? (a) a dry leaf (b) an empty capped bottle (c) a coin (d) a cork
6. 6.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a magnet (c) a tub of water (d) a mirror
7. 7.🧺 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
8. 8.🛟 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
9. 9.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to splash everyone (c) to hide the corks (d) to win a prize
10. 10.🛟 Which of these sinks in water? (a) a dry leaf (b) a piece of thermocol (c) an empty capped bottle (d) an iron nail
11. 11.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) True (b) False
12. 12.True or false: a steel spoon sinks in water. (a) False (b) True
13. 13.⚖️ 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 tub of water (d) whether it floats
14. 14.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) a little shaking (c) more plain water (d) lots of salt stirred in
15. 15.⚖️ 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) True (b) False
16. 16.🔍 Which is the odd one out? (a) a metal key (b) a cork (c) a glass marble (d) a steel spoon
17. 17.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) yeast (d) small test objects
18. 18.⚖️ 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
19. 19.🔮 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 can float (d) it turns to stone
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 change it (b) we measure it (c) we keep it the same
21. 21.⚖️ 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 tub of water (d) whether it floats
22. 22.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it still floats (c) it dissolves (d) it turns white
23. 23.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
24. 24.🛟 Does a cork float or sink in water? (a) sinks (b) floats
25. 25.🧺 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 tub of water (d) small test objects
26. 26.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a mirror (c) a results table (d) turmeric powder
27. 27.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a magnet (c) a towel for spills (d) a battery cell
28. 28.True or false: a pebble floats on water. (a) True (b) False
29. 29.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a towel for spills (d) a balloon
30. 30.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
31. 31.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
32. 32.🌊 What pushes a floating cork upward? (a) the water (b) the cork itself (c) the air above (d) the tub
33. 33.True or false: a ball of clay sinks in water. (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 kept the same. (a) True (b) False
35. 35.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a tub of water (d) yeast
36. 36.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) ice is less dense (d) water is sticky
37. 37.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
38. 38.True or false: an ice cube floats on water. (a) False (b) True
39. 39.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
40. 40.🧺 Which of these is not needed for the float-or-sink test? (a) turmeric powder (b) a towel for spills (c) a tub of water (d) a results table

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