Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 224 · 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.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is magnetic (c) water is sticky (d) ice is very cold
2. 2.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a balloon (c) a towel for spills (d) a results table
3. 3.⚖️ 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 tub of water (b) the amount of clay (c) the shape of the clay (d) the kind of clay
4. 4.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) False (b) True
5. 5.🧺 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) a towel for spills (d) a magnet
6. 6.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
7. 7.True or false: an empty capped bottle sinks in water. (a) True (b) False
8. 8.🛟 Which of these floats on water? (a) a coin (b) a glass marble (c) a piece of thermocol (d) a metal key
9. 9.🔍 Which is the odd one out? (a) a cork (b) a steel spoon (c) a pebble (d) a metal key
10. 10.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the tub (d) the water
11. 11.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
12. 12.⚖️ 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 measure it (b) we keep it the same (c) we change it
13. 13.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) steel is very light (c) it has a magnet (d) its hollow shape
14. 14.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
15. 15.⚖️ 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) the shape of the clay (d) whether it floats
16. 16.⚖️ 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
17. 17.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
18. 18.⚖️ 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
19. 19.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
20. 20.🧺 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
21. 21.True or false: a dry leaf sinks in water. (a) True (b) False
22. 22.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a battery cell (c) a magnet (d) small test objects
23. 23.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it sinks (d) it turns blue
24. 24.True or false: a piece of thermocol sinks in water. (a) False (b) True
25. 25.⚖️ 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 measure it (c) we change it
26. 26.True or false: a piece of thermocol floats on water. (a) True (b) False
27. 27.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) a pebble (b) a metal key (c) a coin (d) a dry leaf
29. 29.🛟 Does a feather float or sink in water? (a) sinks (b) floats
30. 30.⚖️ 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
31. 31.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a results table (c) yeast (d) a battery cell
32. 32.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a tub of water (c) a balloon (d) turmeric powder
33. 33.True or false: a ping-pong ball sinks in water. (a) False (b) True
34. 34.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a battery cell (c) a tub of water (d) a results table
35. 35.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
36. 36.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
37. 37.⚖️ 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) True (b) False
38. 38.🛟 Which of these floats on water? (a) a cork (b) a ball of clay (c) a coin (d) an iron nail
39. 39.True or false: a cork floats on water. (a) True (b) False
40. 40.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a results table (d) a mirror

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