Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 861 · 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.🔍 Which is the odd one out? (a) a feather (b) a cork (c) an ice-cream stick (d) an iron nail
2. 2.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
3. 3.🔍 Which is the odd one out? (a) a pebble (b) a steel spoon (c) a coin (d) an ice-cream stick
4. 4.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
5. 5.True or false: yeast 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? Which of these is what we measure? (a) the amount of clay (b) the kind of clay (c) the shape of the clay (d) whether it floats
7. 7.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
8. 8.⚖️ 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
9. 9.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a results table (d) turmeric powder
10. 10.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) run around the tub (c) play near a deep pond (d) wipe up spills at once
11. 11.⚖️ 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 amount of clay (c) whether it floats
12. 12.⚖️ 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 change it (b) we keep it the same (c) we measure it
13. 13.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) lots of salt stirred in (c) a little shaking (d) more plain water
14. 14.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a mirror (c) a balloon (d) a towel for spills
15. 15.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to hide the corks (c) to splash everyone (d) to keep children safe
16. 16.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
17. 17.⚖️ 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) False (b) True
18. 18.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
19. 19.🛟 Does a feather float or sink in water? (a) sinks (b) floats
20. 20.🔍 Which is the odd one out? (a) a metal key (b) a dry leaf (c) an ice-cream stick (d) a cork
21. 21.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it floats (c) it bounces up (d) it sinks
22. 22.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
23. 23.⚖️ 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
24. 24.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) an empty capped bottle (b) a feather (c) a coin (d) an ice-cream stick
26. 26.🧊 Why does an ice cube float on water? (a) ice is very cold (b) water is sticky (c) ice is magnetic (d) ice is less dense
27. 27.⚖️ 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
28. 28.⚖️ 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 tub of water (c) the shape of the clay (d) the amount of clay
29. 29.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
30. 30.True or false: a ball of clay sinks in water. (a) False (b) True
31. 31.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
32. 32.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
33. 33.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) False (b) True
34. 34.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) sea water is warm (c) its hollow shape (d) it has a magnet
35. 35.True or false: a cork sinks in water. (a) True (b) False
36. 36.🧺 Which of these is not needed for the float-or-sink test? (a) yeast (b) a towel for spills (c) a tub of water (d) small test objects
37. 37.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a magnet (c) a tub of water (d) turmeric powder
38. 38.🛟 Which of these floats on water? (a) a metal key (b) a pebble (c) a piece of thermocol (d) a coin
39. 39.🔍 Which is the odd one out? (a) a metal key (b) an iron nail (c) a coin (d) a cork
40. 40.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed

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