Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 233 · 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 an ice-cream stick float or sink in water? (a) floats (b) sinks
2. 2.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) steel is very light (c) its hollow shape (d) sea water is warm
3. 3.🔍 Which is the odd one out? (a) a pebble (b) an ice cube (c) a metal key (d) an iron nail
4. 4.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) run around the tub (c) wipe up spills at once (d) play near a deep pond
5. 5.⚖️ 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 measure it (c) we keep it the same
6. 6.🔮 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
7. 7.🛟 Which of these floats on water? (a) a dry leaf (b) a glass marble (c) a coin (d) a steel spoon
8. 8.🧺 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 balloon
9. 9.⚖️ 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 keep it the same (c) we measure it
10. 10.⚖️ 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 tub of water (c) the shape of the clay (d) the amount of clay
11. 11.True or false: yeast is not needed for the float-or-sink test. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) an iron nail (b) a piece of thermocol (c) a metal key (d) a pebble
13. 13.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) both of them (c) the big log (d) the small pebble
14. 14.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
15. 15.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
16. 16.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it bounces up (c) it dissolves (d) it floats
17. 17.🔍 Which is the odd one out? (a) a piece of thermocol (b) an ice-cream stick (c) an empty capped bottle (d) a metal key
18. 18.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to win a prize (c) to hide the corks (d) to splash everyone
19. 19.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
20. 20.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
21. 21.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
22. 22.True or false: a ping-pong ball floats on water. (a) True (b) False
23. 23.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
24. 24.🔍 Which is the odd one out? (a) a pebble (b) an iron nail (c) a metal key (d) an empty capped bottle
25. 25.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
26. 26.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the tub (d) the water
27. 27.🛟 Which of these sinks in water? (a) a dry leaf (b) a ping-pong ball (c) a steel spoon (d) a feather
28. 28.⚖️ 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 shape of the clay (c) the tub of water
29. 29.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a magnet (d) a results table
30. 30.🔍 Which is the odd one out? (a) an empty capped bottle (b) a cork (c) a piece of thermocol (d) a coin
31. 31.⚖️ 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
32. 32.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) more plain water (c) a little shaking (d) lots of salt stirred in
33. 33.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
34. 34.🛟 Which of these sinks in water? (a) a dry leaf (b) a metal key (c) a piece of thermocol (d) an empty capped bottle
35. 35.⚖️ 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
36. 36.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
37. 37.🧺 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) yeast (d) small test objects
38. 38.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) turmeric powder (d) a tub of water
39. 39.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
40. 40.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed

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