Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 124 · 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.⚖️ 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
2. 2.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
3. 3.⚖️ 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) False (b) True
4. 4.🧺 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) a mirror
5. 5.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it turns to stone (c) it can float (d) it dissolves
6. 6.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) small test objects (d) a magnet
7. 7.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) turmeric powder (d) a towel for spills
8. 8.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
9. 9.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
10. 10.True or false: a steel spoon floats on water. (a) True (b) False
11. 11.🛟 Which of these sinks in water? (a) a cork (b) a dry leaf (c) a glass marble (d) an empty capped bottle
12. 12.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
13. 13.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
14. 14.⚖️ 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
15. 15.⚖️ 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 change it (b) we measure it (c) we keep it the same
16. 16.⚖️ 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
17. 17.🔮 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
18. 18.True or false: an ice cube floats on water. (a) False (b) True
19. 19.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to hide the corks (c) to splash everyone (d) to win a prize
20. 20.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) yeast (c) turmeric powder (d) a balloon
21. 21.True or false: a dry leaf sinks in water. (a) True (b) False
22. 22.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
23. 23.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
24. 24.🛟 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
25. 25.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a towel for spills (c) turmeric powder (d) a balloon
26. 26.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the tub (d) the cork itself
27. 27.⚖️ 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 change it (b) we measure it (c) we keep it the same
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) whether it floats (b) the amount of clay (c) the kind of clay (d) the shape of the clay
29. 29.🧺 Which of these is not needed for the float-or-sink test? (a) a balloon (b) a tub of water (c) a results table (d) small test objects
30. 30.🛟 Does a cork float or sink in water? (a) sinks (b) floats
31. 31.🛟 Which of these floats on water? (a) a coin (b) a piece of thermocol (c) a ball of clay (d) a steel spoon
32. 32.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
33. 33.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) steel is very light (c) it has a magnet (d) sea water is warm
34. 34.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) a results table (d) a mirror
35. 35.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) a little shaking (c) a few ice cubes (d) more plain water
36. 36.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a cork (c) a metal key (d) a ping-pong ball
37. 37.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
38. 38.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a towel for spills (c) a tub of water (d) small test objects
39. 39.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it sinks (c) it bounces up (d) it dissolves
40. 40.🔍 Which is the odd one out? (a) an empty capped bottle (b) an ice cube (c) a dry leaf (d) a metal key

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