Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 767 · 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.True or false: a metal key sinks in water. (a) False (b) True
2. 2.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we keep it the same (c) we measure it
4. 4.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
5. 5.True or false: an iron nail floats on water. (a) True (b) False
6. 6.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) both of them (c) the small pebble (d) the big log
7. 7.🛟 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 splash everyone (d) to keep children safe
8. 8.🔍 Which is the odd one out? (a) an iron nail (b) a steel spoon (c) a pebble (d) an ice cube
9. 9.⚖️ 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
10. 10.⚖️ 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 amount of clay
11. 11.🛟 Which of these floats on water? (a) a piece of thermocol (b) a metal key (c) a steel spoon (d) a pebble
12. 12.⚖️ 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
13. 13.🧺 Which of these is not needed for the float-or-sink test? (a) a battery cell (b) small test objects (c) a results table (d) a tub of water
14. 14.⚖️ 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 keep it the same (b) we measure it (c) we change it
15. 15.🧺 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 towel for spills (d) a mirror
16. 16.⚖️ 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
17. 17.⚖️ 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 kind of clay (c) the shape of the clay
18. 18.🔍 Which is the odd one out? (a) a feather (b) an ice-cream stick (c) a coin (d) an empty capped bottle
19. 19.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) wipe up spills at once (d) leave water on the floor
20. 20.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
21. 21.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a results table (d) a magnet
22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a balloon (c) a results table (d) a tub of water
23. 23.⚖️ 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) the tub of water (c) whether it floats
24. 24.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) a dry leaf (b) a ping-pong ball (c) a ball of clay (d) an empty capped bottle
26. 26.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) whether it floats (c) the tub of water (d) the amount of clay
27. 27.⚖️ 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
28. 28.⚖️ 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
29. 29.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it floats higher (c) it melts (d) it sinks
30. 30.🛟 Which of these sinks in water? (a) a ping-pong ball (b) an ice-cream stick (c) a dry leaf (d) an iron nail
31. 31.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
32. 32.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) steel is very light (c) it has a magnet (d) sea water is warm
33. 33.True or false: an ice-cream stick floats on water. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) an ice-cream stick (b) a cork (c) a steel spoon (d) a piece of thermocol
35. 35.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a pebble (c) a ping-pong ball (d) a cork
36. 36.True or false: an ice-cream stick sinks in water. (a) True (b) False
37. 37.⚖️ 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 measure it (b) we keep it the same (c) we change it
38. 38.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
39. 39.🧺 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) yeast (d) a results table
40. 40.🥚 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

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