Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 100 · 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.🧺 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) turmeric powder
2. 2.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) sea water is warm (c) steel is very light (d) it has a magnet
3. 3.🛟 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
4. 4.🔍 Which is the odd one out? (a) a ping-pong ball (b) a feather (c) a steel spoon (d) a cork
5. 5.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) a battery cell (d) a results table
6. 6.⚖️ 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 amount of clay (b) the shape of the clay (c) the kind of clay (d) the tub of water
7. 7.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it sinks (c) it still floats (d) it dissolves
8. 8.⚖️ 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 tub of water (c) whether it floats (d) the kind of clay
9. 9.🔮 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
10. 10.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
11. 11.⚖️ 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 keep it the same (c) we measure it
12. 12.🛟 Does a feather float or sink in water? (a) floats (b) sinks
13. 13.⚖️ 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
14. 14.True or false: a metal key sinks in water. (a) True (b) False
15. 15.⚖️ 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 measure it (b) we change it (c) we keep it the same
16. 16.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
17. 17.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
18. 18.⚖️ 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 shape of the clay (c) the amount of clay
19. 19.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
20. 20.🧺 Which of these is not needed for the float-or-sink test? (a) a battery cell (b) a tub of water (c) small test objects (d) a towel for spills
21. 21.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
22. 22.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
23. 23.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
24. 24.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a magnet (c) a mirror (d) a results table
25. 25.🛟 Which of these floats on water? (a) a cork (b) a metal key (c) a pebble (d) a steel spoon
26. 26.🔍 Which is the odd one out? (a) an iron nail (b) a ball of clay (c) a piece of thermocol (d) a coin
27. 27.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a balloon (c) a tub of water (d) small test objects
28. 28.True or false: a piece of thermocol sinks in water. (a) False (b) True
29. 29.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) lots of salt stirred in (c) a few ice cubes (d) more plain water
30. 30.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a battery cell (c) a towel for spills (d) a magnet
31. 31.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
32. 32.True or false: an ice-cream stick sinks in water. (a) True (b) False
33. 33.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a mirror (c) small test objects (d) a tub of water
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) False (b) True
35. 35.🛟 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
36. 36.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a magnet (c) small test objects (d) yeast
37. 37.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
38. 38.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it melts (c) it sinks (d) it floats higher
39. 39.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a ping-pong ball (c) a pebble (d) a dry leaf
40. 40.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a mirror (d) a tub of water

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