Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 980 · 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) a piece of thermocol (b) a ping-pong ball (c) a cork (d) a steel spoon
2. 2.True or false: a steel spoon sinks in water. (a) False (b) True
3. 3.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is magnetic (c) water is sticky (d) ice is less dense
4. 4.⚖️ 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 measure it (c) we change it
5. 5.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a towel for spills (c) a magnet (d) a results table
6. 6.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
7. 7.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
8. 8.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a mirror (c) small test objects (d) a tub of water
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 measure it (b) we keep it the same (c) we change it
10. 10.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) True (b) False
11. 11.🛟 Which of these floats on water? (a) an iron nail (b) a pebble (c) a glass marble (d) a cork
12. 12.⚖️ 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 measure it (b) we change it (c) we keep it the same
13. 13.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is kept the same. (a) True (b) False
14. 14.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
15. 15.🔍 Which is the odd one out? (a) a coin (b) a metal key (c) an ice-cream stick (d) an iron nail
16. 16.True or false: an ice-cream stick floats on water. (a) False (b) True
17. 17.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
18. 18.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
19. 19.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it sinks (c) it turns white (d) it still floats
20. 20.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a results table (d) a balloon
21. 21.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a tub of water (d) a balloon
22. 22.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) the kind of clay (c) whether it floats
23. 23.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
24. 24.🛟 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) run around the tub (d) wipe up spills at once
25. 25.🔮 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
26. 26.⚖️ 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 measure it (c) we keep it the same
27. 27.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a towel for spills (d) a battery cell
28. 28.🛟 Which of these floats on water? (a) an ice cube (b) a coin (c) a steel spoon (d) an iron nail
29. 29.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
30. 30.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
31. 31.🔍 Which is the odd one out? (a) an iron nail (b) a dry leaf (c) a coin (d) a glass marble
32. 32.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) turmeric powder (c) a balloon (d) a magnet
33. 33.🛟 Which of these floats on water? (a) a coin (b) an iron nail (c) a pebble (d) a dry leaf
34. 34.🔍 Which is the odd one out? (a) an ice cube (b) a dry leaf (c) a feather (d) a pebble
35. 35.🔍 Which is the odd one out? (a) an ice cube (b) a ping-pong ball (c) a dry leaf (d) a metal key
36. 36.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it turns blue (c) it melts (d) it sinks
37. 37.⚖️ 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) True (b) False
38. 38.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
39. 39.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) lots of salt stirred in (c) more plain water (d) a little shaking
40. 40.🌊 What pushes a floating cork upward? (a) the water (b) the cork itself (c) the tub (d) the air above

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