Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 225 · 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.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the tub (d) the water
2. 2.True or false: a cork sinks in water. (a) False (b) True
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) the amount of clay (c) whether it floats
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.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
6. 6.⚖️ 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 keep it the same (c) we measure it
7. 7.True or false: a steel spoon sinks in water. (a) True (b) False
8. 8.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
9. 9.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
10. 10.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) yeast (c) a tub of water (d) a results table
11. 11.⚖️ 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) whether it floats (c) the kind of clay (d) the amount of clay
12. 12.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
13. 13.⚖️ 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 keep it the same (c) we change it
14. 14.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
15. 15.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it floats higher (c) it turns blue (d) it sinks
16. 16.⚖️ 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
17. 17.🧺 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) turmeric powder (d) a towel for spills
18. 18.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to hide the corks (d) to keep children safe
19. 19.🛟 Which of these floats on water? (a) a metal key (b) a steel spoon (c) a coin (d) an ice cube
20. 20.True or false: a dry leaf floats on water. (a) True (b) False
21. 21.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it turns white (c) it sinks (d) it dissolves
22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) a magnet (d) a tub of water
23. 23.True or false: a pebble sinks in water. (a) False (b) True
24. 24.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the big log (c) both of them (d) the small pebble
25. 25.⚖️ 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
26. 26.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a towel for spills (c) a battery cell (d) a magnet
27. 27.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it dissolves (c) it sinks (d) it floats
28. 28.🧺 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) small test objects (d) a balloon
29. 29.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
30. 30.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
31. 31.🛟 Which of these floats on water? (a) a glass marble (b) a piece of thermocol (c) a metal key (d) a steel spoon
32. 32.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
33. 33.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a piece of thermocol (c) a coin (d) a cork
34. 34.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) water is sticky (d) ice is less dense
35. 35.🛟 Which of these floats on water? (a) an iron nail (b) a cork (c) a glass marble (d) a metal key
36. 36.🔍 Which is the odd one out? (a) an ice cube (b) a dry leaf (c) a ping-pong ball (d) a coin
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a balloon (c) small test objects (d) a tub of water
38. 38.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a mirror (c) a results table (d) a tub of water
39. 39.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) an ice-cream stick (b) a pebble (c) a piece of thermocol (d) a ping-pong ball

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