Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 959 · 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.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
2. 2.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to hide the corks (c) to keep children safe (d) to win a prize
3. 3.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
4. 4.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is very cold (c) water is sticky (d) ice is magnetic
5. 5.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
6. 6.⚖️ 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
7. 7.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the kind of clay”? (a) we keep it the same (b) we change it (c) we measure it
8. 8.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
9. 9.⚖️ 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
10. 10.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a battery cell (c) small test objects (d) a results table
11. 11.⚖️ 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 change it (b) we measure it (c) we keep it the same
12. 12.🔮 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 can float (d) it dissolves
13. 13.⚖️ 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
14. 14.🛟 Does a ball of clay float or sink in water? (a) sinks (b) floats
15. 15.True or false: an ice cube sinks in water. (a) True (b) False
16. 16.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
17. 17.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
18. 18.🛟 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
19. 19.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) small test objects (c) a tub of water (d) a towel for spills
20. 20.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a little shaking (c) a few ice cubes (d) lots of salt stirred in
21. 21.🧺 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 balloon (d) a tub of water
22. 22.🔍 Which is the odd one out? (a) a pebble (b) a ball of clay (c) an iron nail (d) a ping-pong ball
23. 23.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
24. 24.🧺 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) yeast (d) a towel for spills
25. 25.True or false: a cork sinks in water. (a) True (b) False
26. 26.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we measure it (c) we change it
27. 27.True or false: a cork floats on water. (a) True (b) False
28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a tub of water (c) a results table (d) a towel for spills
29. 29.⚖️ 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
30. 30.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a battery cell (d) a results table
31. 31.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
32. 32.True or false: an empty capped bottle sinks in water. (a) False (b) True
33. 33.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) the kind of clay (c) whether it floats (d) the tub of water
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) True (b) False
35. 35.🛟 Which of these sinks in water? (a) a piece of thermocol (b) an ice-cream stick (c) a steel spoon (d) a dry leaf
36. 36.⚖️ 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
37. 37.True or false: a metal key sinks in water. (a) True (b) False
38. 38.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
39. 39.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
40. 40.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the tub of water (b) whether it floats (c) the shape of the clay

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