Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 890 · 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? Which of these is kept the same? (a) whether it floats (b) the shape of the clay (c) the kind of clay
2. 2.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
3. 3.🌊 What pushes a floating cork upward? (a) the cork itself (b) the tub (c) the water (d) the air above
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a balloon (d) a tub of water
5. 5.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it sinks (d) it turns blue
6. 6.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
7. 7.🛟 Which of these floats on water? (a) a steel spoon (b) an iron nail (c) a dry leaf (d) a coin
8. 8.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
9. 9.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it dissolves (c) it sinks faster (d) it can float
10. 10.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) run around the tub (c) play near a deep pond (d) leave water on the floor
11. 11.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) a battery cell (d) a tub of water
12. 12.🛟 Which of these floats on water? (a) a metal key (b) a pebble (c) a coin (d) a cork
13. 13.🛟 Does a cork float or sink in water? (a) sinks (b) floats
14. 14.True or false: a feather floats on water. (a) True (b) False
15. 15.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a results table (d) a balloon
16. 16.🔍 Which is the odd one out? (a) an iron nail (b) a metal key (c) a piece of thermocol (d) a ball of clay
17. 17.🛟 Which of these floats on water? (a) a ball of clay (b) a steel spoon (c) a metal key (d) a piece of thermocol
18. 18.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) True (b) False
19. 19.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
20. 20.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a few ice cubes (c) a little shaking (d) lots of salt stirred in
21. 21.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
22. 22.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to win a prize (c) to keep children safe (d) to splash everyone
23. 23.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the small pebble (c) neither of them (d) the big log
24. 24.🛟 Which of these sinks in water? (a) a dry leaf (b) a cork (c) a coin (d) a piece of thermocol
25. 25.⚖️ 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 measure it (b) we keep it the same (c) we change it
26. 26.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it floats (c) it dissolves (d) it bounces up
27. 27.True or false: a feather sinks in water. (a) False (b) True
28. 28.True or false: an ice-cream stick floats on water. (a) False (b) True
29. 29.🛟 Which of these floats on water? (a) an ice cube (b) an iron nail (c) a pebble (d) a ball of clay
30. 30.🔍 Which is the odd one out? (a) a ping-pong ball (b) a coin (c) an ice cube (d) an ice-cream stick
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) yeast (c) a results table (d) a towel for spills
32. 32.⚖️ 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
33. 33.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a magnet (c) a towel for spills (d) a results table
34. 34.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
35. 35.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
36. 36.🔍 Which is the odd one out? (a) a coin (b) a cork (c) a pebble (d) a steel spoon
37. 37.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
38. 38.⚖️ 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 amount of clay
39. 39.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
40. 40.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a cork (c) an empty capped bottle (d) an iron nail

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