Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 410 · 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 of these sinks in water? (a) an empty capped bottle (b) a glass marble (c) a piece of thermocol (d) a cork
2. 2.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) yeast (c) a mirror (d) a balloon
3. 3.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) a tub of water (d) a mirror
4. 4.True or false: an ice cube sinks in water. (a) False (b) True
5. 5.🔮 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
6. 6.True or false: a metal key floats on water. (a) True (b) False
7. 7.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) turmeric powder (d) a towel for spills
8. 8.🛟 Which of these floats on water? (a) a coin (b) a metal key (c) a glass marble (d) a feather
9. 9.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
10. 10.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
11. 11.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) steel is very light (c) sea water is warm (d) its hollow shape
12. 12.True or false: a steel spoon floats on water. (a) True (b) False
13. 13.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) yeast (c) a towel for spills (d) a tub of water
14. 14.True or false: a piece of thermocol floats on water. (a) True (b) False
15. 15.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) whether it floats (c) the shape of the clay
16. 16.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
17. 17.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a mirror (c) a towel for spills (d) small test objects
18. 18.True or false: a coin floats on water. (a) True (b) False
19. 19.🛟 Which of these floats on water? (a) a glass marble (b) a ball of clay (c) a piece of thermocol (d) an iron nail
20. 20.⚖️ 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) the amount of clay (d) whether it floats
21. 21.🧺 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 battery cell (d) a towel for spills
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 what we measure. (a) False (b) True
23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) an empty capped bottle (b) an iron nail (c) a steel spoon (d) a metal key
25. 25.🔍 Which is the odd one out? (a) a piece of thermocol (b) a metal key (c) a coin (d) a ball of clay
26. 26.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it sinks faster (c) it turns to stone (d) it can float
27. 27.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a magnet (c) a results table (d) a tub of water
29. 29.⚖️ 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) whether it floats (c) the tub of water
30. 30.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) wipe up spills at once (c) leave water on the floor (d) run around the tub
31. 31.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
32. 32.🔮 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
33. 33.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a little shaking (c) lots of salt stirred in (d) a few ice cubes
34. 34.🧺 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) a results table
35. 35.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we measure it (c) we change it
36. 36.🔍 Which is the odd one out? (a) an ice cube (b) a feather (c) an iron nail (d) a cork
37. 37.🛟 Which of these floats on water? (a) a cork (b) a ball of clay (c) a steel spoon (d) an iron nail
38. 38.True or false: an iron nail floats on water. (a) True (b) False
39. 39.⚖️ 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
40. 40.⚖️ 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) True (b) False

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