Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 712 · 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.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it dissolves (c) it can float (d) it turns to stone
2. 2.True or false: a glass marble sinks in water. (a) True (b) False
3. 3.🌊 What pushes a floating cork upward? (a) the tub (b) the water (c) the air above (d) the cork itself
4. 4.⚖️ 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
5. 5.⚖️ 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 measure it (b) we keep it the same (c) we change it
6. 6.⚖️ 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
7. 7.True or false: a ball of clay floats on water. (a) False (b) True
8. 8.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to hide the corks (c) to splash everyone (d) to keep children safe
9. 9.🧺 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 balloon (d) a tub of water
10. 10.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) a towel for spills (d) a mirror
11. 11.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) sea water is warm (c) its hollow shape (d) it has a magnet
12. 12.🧺 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) yeast (d) small test objects
13. 13.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) the shape of the clay (b) whether it floats (c) the amount of clay (d) the kind of clay
14. 14.True or false: a coin floats on water. (a) False (b) True
15. 15.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
16. 16.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
17. 17.🛟 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
18. 18.⚖️ 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 change it (c) we keep it the same
19. 19.🛟 Which of these floats on water? (a) an iron nail (b) a metal key (c) a steel spoon (d) an empty capped bottle
20. 20.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
21. 21.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
22. 22.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) yeast (c) a results table (d) turmeric powder
23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the tub of water (b) the shape of the clay (c) whether it floats
24. 24.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) both of them (c) the big log (d) neither of them
25. 25.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
26. 26.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) yeast (c) a towel for spills (d) a magnet
27. 27.🛟 Which of these sinks in water? (a) a coin (b) a dry leaf (c) a ping-pong ball (d) a feather
28. 28.🔍 Which is the odd one out? (a) an iron nail (b) a glass marble (c) a steel spoon (d) a feather
29. 29.⚖️ 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 measure it (b) we change it (c) we keep it the same
30. 30.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it floats (c) it dissolves (d) it sinks
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a battery cell (c) a results table (d) a towel for spills
32. 32.🔍 Which is the odd one out? (a) a dry leaf (b) a steel spoon (c) a feather (d) a cork
33. 33.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
34. 34.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
35. 35.True or false: a cork sinks in water. (a) False (b) True
36. 36.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a tub of water (c) small test objects (d) a towel for spills
37. 37.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it melts (c) it floats higher (d) it sinks
38. 38.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
39. 39.⚖️ 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 amount of clay (c) the tub of water (d) whether it floats
40. 40.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False

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