Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 447 · 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? What do we do with “whether it floats”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🛟 Does a coin float or sink in water? (a) floats (b) sinks
3. 3.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
4. 4.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) a balloon (d) a results table
5. 5.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the small pebble (c) both of them (d) the big log
6. 6.🌊 What pushes a floating cork upward? (a) the water (b) the cork itself (c) the tub (d) the air above
7. 7.🛟 Which of these sinks in water? (a) a cork (b) an ice-cream stick (c) a steel spoon (d) an empty capped bottle
8. 8.⚖️ 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
9. 9.⚖️ 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 tub of water (c) the amount of clay (d) whether it floats
10. 10.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
11. 11.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
12. 12.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it sinks (c) it dissolves (d) it bounces up
13. 13.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
14. 14.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
15. 15.🛟 Which of these sinks in water? (a) an ice-cream stick (b) an ice cube (c) a metal key (d) a ping-pong ball
16. 16.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
17. 17.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a mirror (d) a tub of water
18. 18.🔍 Which is the odd one out? (a) a glass marble (b) a ball of clay (c) a pebble (d) a dry leaf
19. 19.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) small test objects (c) a results table (d) a towel for spills
20. 20.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it sinks (c) it turns white (d) it dissolves
21. 21.🔍 Which is the odd one out? (a) a cork (b) a metal key (c) a ball of clay (d) an iron nail
22. 22.⚖️ 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
23. 23.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it sinks (c) it floats higher (d) it turns blue
24. 24.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) False (b) True
25. 25.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it can float (c) it sinks faster (d) it dissolves
26. 26.🛟 Which of these floats on water? (a) a pebble (b) an iron nail (c) a ball of clay (d) an ice-cream stick
27. 27.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the shape of the clay (c) the amount of clay (d) the tub of water
28. 28.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) False (b) True
29. 29.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
30. 30.🛟 Which of these floats on water? (a) a pebble (b) an iron nail (c) a ball of clay (d) an empty capped bottle
31. 31.⚖️ 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
32. 32.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
33. 33.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a ping-pong ball (c) a coin (d) a dry leaf
34. 34.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) leave water on the floor (d) wipe up spills at once
35. 35.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
36. 36.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is what we measure. (a) False (b) True
37. 37.True or false: an iron nail floats on water. (a) True (b) False
38. 38.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a balloon (c) a tub of water (d) small test objects
39. 39.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) water is sticky (c) ice is very cold (d) ice is less dense
40. 40.True or false: a feather sinks in water. (a) False (b) True

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