Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 403 · 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 the one thing we change? (a) whether it floats (b) the tub of water (c) the amount of clay (d) the shape of the clay
2. 2.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) yeast (d) a tub of water
3. 3.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it can float (c) it sinks faster (d) it turns to stone
4. 4.🔍 Which is the odd one out? (a) a glass marble (b) a cork (c) a steel spoon (d) a pebble
5. 5.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
6. 6.🔍 Which is the odd one out? (a) a piece of thermocol (b) an ice cube (c) an empty capped bottle (d) an iron nail
7. 7.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) wipe up spills at once (d) run around the tub
8. 8.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
9. 9.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it still floats (c) it turns white (d) it dissolves
10. 10.⚖️ 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
11. 11.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) its hollow shape (c) it has a magnet (d) steel is very light
12. 12.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
13. 13.True or false: an empty capped bottle floats on water. (a) False (b) True
14. 14.🌊 What pushes a floating cork upward? (a) the tub (b) the water (c) the cork itself (d) the air above
15. 15.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) a results table (d) a balloon
16. 16.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a steel spoon (c) a piece of thermocol (d) a cork
17. 17.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to win a prize (c) to hide the corks (d) to keep children safe
18. 18.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
19. 19.⚖️ 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) False (b) True
20. 20.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
21. 21.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) True (b) False
22. 22.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) neither of them (c) the small pebble (d) the big log
23. 23.🧺 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 tub of water (d) a mirror
24. 24.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a battery cell (c) a towel for spills (d) a tub of water
25. 25.🛟 Which of these sinks in water? (a) a ping-pong ball (b) an ice cube (c) a ball of clay (d) an empty capped bottle
26. 26.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
27. 27.True or false: a pebble floats on water. (a) False (b) True
28. 28.True or false: a dry leaf sinks in water. (a) False (b) True
29. 29.🧊 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
30. 30.🛟 Which of these floats on water? (a) a pebble (b) a metal key (c) a coin (d) a ping-pong ball
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) turmeric powder (c) a tub of water (d) a towel for spills
32. 32.🛟 Which of these floats on water? (a) a glass marble (b) a ball of clay (c) a cork (d) a metal key
33. 33.⚖️ 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 amount of clay
34. 34.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
35. 35.🛟 Which of these floats on water? (a) an iron nail (b) a metal key (c) a steel spoon (d) a feather
36. 36.⚖️ 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) the amount of clay (d) whether it floats
37. 37.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
38. 38.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
39. 39.⚖️ 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 change it (b) we measure it (c) we keep it the same
40. 40.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a glass marble (c) a cork (d) an ice-cream stick

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