Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 254 · 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 metal key (b) a dry leaf (c) a steel spoon (d) a pebble
2. 2.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a towel for spills (d) a battery cell
3. 3.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it still floats (d) it turns white
4. 4.⚖️ 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 keep it the same (b) we change it (c) we measure it
5. 5.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) leave water on the floor (d) wipe up spills at once
6. 6.⚖️ 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
7. 7.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the tub of water (b) the amount of clay (c) the kind of clay (d) whether it floats
8. 8.🔍 Which is the odd one out? (a) a feather (b) a metal key (c) a piece of thermocol (d) a cork
9. 9.⚖️ 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
10. 10.🔍 Which is the odd one out? (a) a pebble (b) a coin (c) a ball of clay (d) an ice-cream stick
11. 11.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
12. 12.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) it has a magnet (c) its hollow shape (d) sea water is warm
13. 13.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
14. 14.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a magnet (c) a towel for spills (d) small test objects
15. 15.⚖️ 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) False (b) True
16. 16.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
17. 17.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the amount of clay (b) the shape of the clay (c) whether it floats
18. 18.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
19. 19.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a results table (c) a balloon (d) yeast
20. 20.⚖️ 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
21. 21.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) small test objects (d) yeast
22. 22.⚖️ 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
23. 23.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it dissolves (c) it turns to stone (d) it sinks faster
24. 24.⚖️ 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 keep it the same (b) we change it (c) we measure it
25. 25.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
26. 26.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
27. 27.True or false: an iron nail floats on water. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) a piece of thermocol (b) a coin (c) an iron nail (d) a metal key
29. 29.🔍 Which is the odd one out? (a) a feather (b) a pebble (c) an iron nail (d) a ball of clay
30. 30.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it turns blue (c) it sinks (d) it floats higher
31. 31.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) a cork (b) a ball of clay (c) an ice cube (d) a feather
33. 33.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
34. 34.True or false: a dry leaf sinks in water. (a) False (b) True
35. 35.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a magnet (c) a towel for spills (d) a tub of water
36. 36.True or false: yeast is not needed for the float-or-sink test. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) a piece of thermocol (b) a cork (c) a pebble (d) a dry leaf
38. 38.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) True (b) False
39. 39.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) more plain water (c) lots of salt stirred in (d) a few ice cubes
40. 40.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a balloon (c) a tub of water (d) a towel for spills

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