Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 73 · 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? True or false: whether it floats is what we measure. (a) True (b) False
2. 2.🛟 Which of these sinks in water? (a) an ice cube (b) a coin (c) a dry leaf (d) a cork
3. 3.⚖️ 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) whether it floats (c) the kind of clay
4. 4.🧺 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 tub of water (d) a balloon
5. 5.🛟 Does a cork float or sink in water? (a) sinks (b) floats
6. 6.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the tub (d) the cork itself
7. 7.⚖️ 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 keep it the same (b) we change it (c) we measure it
8. 8.🛟 Which of these floats on water? (a) an iron nail (b) a ball of clay (c) an ice-cream stick (d) a metal key
9. 9.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
10. 10.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it melts (c) it turns blue (d) it floats higher
11. 11.True or false: a pebble sinks in water. (a) True (b) False
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 keep it the same (b) we measure it (c) we change it
13. 13.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
14. 14.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
15. 15.🔍 Which is the odd one out? (a) a ball of clay (b) a glass marble (c) an ice-cream stick (d) a metal key
16. 16.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
17. 17.⚖️ 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 amount of clay (c) whether it floats
18. 18.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) True (b) False
19. 19.⚖️ 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) False (b) True
20. 20.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is magnetic (c) ice is very cold (d) water is sticky
21. 21.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a mirror (c) a tub of water (d) a results table
22. 22.🔍 Which is the odd one out? (a) a ping-pong ball (b) an empty capped bottle (c) a feather (d) a ball of clay
23. 23.🔍 Which is the odd one out? (a) a pebble (b) a steel spoon (c) a coin (d) an ice cube
24. 24.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) the small pebble (c) both of them (d) neither of them
25. 25.⚖️ 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) True (b) False
26. 26.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
27. 27.⚖️ 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) the kind of clay (c) whether it floats (d) the amount of clay
28. 28.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) yeast (c) a results table (d) a tub of water
29. 29.⚖️ 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
30. 30.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
31. 31.🛟 Which of these floats on water? (a) a pebble (b) an empty capped bottle (c) an iron nail (d) a coin
32. 32.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
33. 33.⚖️ 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) True (b) False
34. 34.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it dissolves (c) it sinks (d) it bounces up
35. 35.True or false: a glass marble floats on water. (a) False (b) True
36. 36.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
37. 37.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it can float (c) it dissolves (d) it turns to stone
38. 38.🔍 Which is the odd one out? (a) a cork (b) a metal key (c) a coin (d) a glass marble
39. 39.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
40. 40.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed

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