Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 278 · 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.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it turns blue (c) it floats higher (d) it sinks
2. 2.🛟 Which of these sinks in water? (a) a metal key (b) a piece of thermocol (c) a feather (d) a dry leaf
3. 3.⚖️ 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
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) yeast (c) a tub of water (d) a results table
5. 5.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a piece of thermocol (c) an iron nail (d) an ice cube
6. 6.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a mirror (c) a results table (d) a tub of water
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 shape of the clay (b) whether it floats (c) the kind of clay (d) the amount of clay
8. 8.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
9. 9.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) leave water on the floor (c) wipe up spills at once (d) run around the tub
10. 10.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) small test objects (d) turmeric powder
11. 11.🛟 Which of these sinks in water? (a) a piece of thermocol (b) an empty capped bottle (c) a glass marble (d) a feather
12. 12.⚖️ 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 tub of water (c) the shape of the clay
13. 13.🛟 Which of these floats on water? (a) a ball of clay (b) a metal key (c) a dry leaf (d) a steel spoon
14. 14.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
15. 15.True or false: an ice-cream stick floats on water. (a) True (b) False
16. 16.🛟 Which of these floats on water? (a) a ball of clay (b) a glass marble (c) an iron nail (d) an empty capped bottle
17. 17.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) a tub of water (d) turmeric powder
18. 18.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to hide the corks (c) to keep children safe (d) to splash everyone
19. 19.True or false: an iron nail floats on water. (a) False (b) True
20. 20.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a balloon (d) a tub of water
21. 21.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a tub of water (c) a towel for spills (d) small test objects
22. 22.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
23. 23.⚖️ 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) True (b) False
24. 24.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
25. 25.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) a results table (c) small test objects (d) a towel for spills
26. 26.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
27. 27.🔮 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
28. 28.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it dissolves (c) it sinks (d) it turns white
29. 29.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
30. 30.🔍 Which is the odd one out? (a) a piece of thermocol (b) a steel spoon (c) an iron nail (d) a metal key
31. 31.🌊 What pushes a floating cork upward? (a) the air above (b) the tub (c) the water (d) the cork itself
32. 32.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) lots of salt stirred in (c) a little shaking (d) a few ice cubes
33. 33.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
34. 34.⚖️ 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 shape of the clay (b) the kind of clay (c) whether it floats (d) the amount of clay
35. 35.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) False (b) True
36. 36.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
37. 37.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) its hollow shape (c) it has a magnet (d) steel is very light
38. 38.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
39. 39.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) False (b) True
40. 40.⚖️ 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

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