Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 238 · 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.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
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 cork (b) a ball of clay (c) a piece of thermocol (d) a feather
4. 4.⚖️ 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
5. 5.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) small test objects (c) turmeric powder (d) a magnet
6. 6.🌊 What pushes a floating cork upward? (a) the cork itself (b) the tub (c) the air above (d) the water
7. 7.🧺 Which of these is not needed for the float-or-sink test? (a) a mirror (b) a tub of water (c) a towel for spills (d) a results table
8. 8.⚖️ 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 keep it the same (c) we change it
9. 9.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
10. 10.⚖️ 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) whether it floats (d) the shape of the clay
11. 11.⚖️ 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) True (b) False
12. 12.🧺 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 results table (d) a balloon
13. 13.🧺 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) a results table (d) a mirror
14. 14.🔍 Which is the odd one out? (a) a ping-pong ball (b) a pebble (c) a steel spoon (d) an iron nail
15. 15.🔍 Which is the odd one out? (a) a coin (b) a piece of thermocol (c) a metal key (d) a pebble
16. 16.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
17. 17.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) yeast (c) a towel for spills (d) turmeric powder
18. 18.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
19. 19.🚢 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
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 tub of water (b) the amount of clay (c) the shape of the clay (d) whether it floats
21. 21.⚖️ 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 amount of clay
22. 22.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it melts (c) it floats higher (d) it turns blue
23. 23.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
24. 24.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
25. 25.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
26. 26.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to keep children safe (c) to hide the corks (d) to win a prize
27. 27.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) more plain water (c) a few ice cubes (d) lots of salt stirred in
28. 28.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
29. 29.🔍 Which is the odd one out? (a) a cork (b) a ball of clay (c) a glass marble (d) a pebble
30. 30.🧺 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
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) a tub of water (c) a towel for spills (d) small test objects
32. 32.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
33. 33.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it sinks (c) it floats (d) it bounces up
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the kind of clay”? (a) we measure it (b) we keep it the same (c) we change it
35. 35.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
36. 36.True or false: a ball of clay floats on water. (a) False (b) True
37. 37.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a magnet (c) a results table (d) a mirror
38. 38.🔍 Which is the odd one out? (a) a piece of thermocol (b) a steel spoon (c) a ping-pong ball (d) an ice-cream stick
39. 39.⚖️ 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) False (b) True
40. 40.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed

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