Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 832 · 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.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a towel for spills (c) a tub of water (d) small test objects
2. 2.🌊 What pushes a floating cork upward? (a) the cork itself (b) the tub (c) the water (d) the air above
3. 3.True or false: an ice cube sinks in water. (a) False (b) True
4. 4.🛟 Which of these floats on water? (a) a glass marble (b) a coin (c) a ball of clay (d) a cork
5. 5.🔍 Which is the odd one out? (a) an ice cube (b) an ice-cream stick (c) a ball of clay (d) an empty capped bottle
6. 6.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the tub of water (b) whether it floats (c) the amount of clay (d) the kind of clay
7. 7.True or false: a glass marble floats on water. (a) True (b) False
8. 8.🧺 Which of these is not needed for the float-or-sink test? (a) yeast (b) small test objects (c) a towel for spills (d) a tub of water
9. 9.⚖️ 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) False (b) True
10. 10.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) a little shaking (c) lots of salt stirred in (d) more plain water
11. 11.⚖️ 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
12. 12.🛟 Which of these sinks in water? (a) a pebble (b) a ping-pong ball (c) a piece of thermocol (d) an ice-cream stick
13. 13.⚖️ 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
14. 14.🔍 Which is the odd one out? (a) a coin (b) an ice-cream stick (c) a ball of clay (d) a steel spoon
15. 15.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
16. 16.🛟 Which of these sinks in water? (a) a dry leaf (b) a feather (c) a piece of thermocol (d) a glass marble
17. 17.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it dissolves (c) it floats (d) it bounces up
18. 18.🔍 Which is the odd one out? (a) an ice cube (b) a coin (c) a metal key (d) a glass marble
19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) False (b) True
20. 20.🛟 Which of these sinks in water? (a) an ice cube (b) an iron nail (c) an ice-cream stick (d) a dry leaf
21. 21.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a battery cell (d) a towel for spills
22. 22.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is less dense (c) water is sticky (d) ice is very cold
23. 23.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
24. 24.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) False (b) True
25. 25.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
26. 26.True or false: a ping-pong ball sinks in water. (a) True (b) False
27. 27.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it floats higher (c) it sinks (d) it turns blue
28. 28.🛟 Which of these floats on water? (a) a glass marble (b) a steel spoon (c) a feather (d) a metal key
29. 29.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
30. 30.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) a magnet (d) small test objects
31. 31.🔍 Which is the odd one out? (a) a cork (b) an iron nail (c) an ice cube (d) an empty capped bottle
32. 32.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) small test objects (d) a balloon
33. 33.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
34. 34.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
35. 35.🔍 Which is the odd one out? (a) a dry leaf (b) an empty capped bottle (c) a steel spoon (d) a feather
36. 36.⚖️ 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) False (b) True
37. 37.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
38. 38.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
39. 39.True or false: an ice-cream stick sinks in water. (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 tub of water”? (a) we change it (b) we measure it (c) we keep it the same

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