Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 901 · 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 is the odd one out? (a) an ice cube (b) a coin (c) a piece of thermocol (d) an ice-cream stick
2. 2.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a towel for spills (c) a tub of water (d) a results table
3. 3.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a results table (c) small test objects (d) a tub of water
4. 4.🧺 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 tub of water
5. 5.🛟 Does a feather float or sink in water? (a) floats (b) sinks
6. 6.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
7. 7.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
8. 8.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to splash everyone (c) to win a prize (d) to keep children safe
9. 9.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
10. 10.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) small test objects (c) yeast (d) turmeric powder
11. 11.🧺 Which of these is not needed for the float-or-sink test? (a) a balloon (b) a tub of water (c) small test objects (d) a results table
12. 12.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
13. 13.True or false: an ice cube sinks in water. (a) True (b) False
14. 14.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it dissolves (c) it turns white (d) it sinks
15. 15.True or false: a feather sinks in water. (a) False (b) True
16. 16.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) it has a magnet (c) its hollow shape (d) steel is very light
17. 17.⚖️ 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) the kind of clay (c) the amount of clay (d) whether it floats
18. 18.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
19. 19.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
20. 20.⚖️ 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
21. 21.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) small test objects (d) a magnet
22. 22.🛟 Which of these floats on water? (a) a coin (b) an ice cube (c) a glass marble (d) an iron nail
23. 23.🛟 Which of these floats on water? (a) a metal key (b) an iron nail (c) a piece of thermocol (d) a pebble
24. 24.🌊 What pushes a floating cork upward? (a) the tub (b) the cork itself (c) the water (d) the air above
25. 25.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
26. 26.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) yeast (c) a magnet (d) a results table
27. 27.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
28. 28.🛟 Which of these sinks in water? (a) an ice cube (b) an ice-cream stick (c) an empty capped bottle (d) a coin
29. 29.🔍 Which is the odd one out? (a) a cork (b) an ice cube (c) a glass marble (d) an empty capped bottle
30. 30.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a tub of water (c) a mirror (d) turmeric powder
31. 31.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) wipe up spills at once (c) play near a deep pond (d) run around the tub
32. 32.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) water is sticky (d) ice is less dense
33. 33.True or false: a coin sinks in water. (a) True (b) False
34. 34.🛟 Which of these sinks in water? (a) a dry leaf (b) a steel spoon (c) an ice cube (d) an ice-cream stick
35. 35.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a tub of water (d) a mirror
36. 36.⚖️ 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 keep it the same (b) we change it (c) we measure it
37. 37.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it sinks (c) it melts (d) it turns blue
38. 38.⚖️ 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 amount of clay (b) the kind of clay (c) the shape of the clay (d) the tub of water
39. 39.🛟 Does a ball of clay float or sink in water? (a) sinks (b) floats
40. 40.⚖️ 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

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