Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 788 · 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.🧺 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 towel for spills (d) a battery cell
2. 2.⚖️ 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
3. 3.⚖️ 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 measure it (b) we keep it the same (c) we change it
4. 4.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a coin (c) an empty capped bottle (d) an ice cube
5. 5.True or false: a pebble floats on water. (a) True (b) False
6. 6.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) small test objects (d) a magnet
7. 7.⚖️ 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) True (b) False
8. 8.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
9. 9.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
10. 10.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
11. 11.🧺 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
12. 12.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is very cold (c) ice is magnetic (d) water is sticky
13. 13.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) a tub of water (d) turmeric powder
14. 14.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) the big log (c) neither of them (d) both of them
15. 15.🛟 Which of these sinks in water? (a) an ice cube (b) a glass marble (c) a cork (d) an ice-cream stick
16. 16.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) small test objects (c) a magnet (d) a balloon
17. 17.🔍 Which is the odd one out? (a) a cork (b) a steel spoon (c) a glass marble (d) a metal key
18. 18.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
19. 19.True or false: a metal key floats on water. (a) True (b) False
20. 20.🔮 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 turns to stone (d) it dissolves
21. 21.⚖️ 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) False (b) True
22. 22.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to keep children safe (c) to win a prize (d) to hide the corks
23. 23.🔍 Which is the odd one out? (a) an empty capped bottle (b) a piece of thermocol (c) an ice cube (d) a ball of clay
24. 24.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
25. 25.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it floats higher (c) it turns blue (d) it melts
26. 26.🔍 Which is the odd one out? (a) an ice-cream stick (b) an ice cube (c) a steel spoon (d) a ping-pong ball
27. 27.⚖️ 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
28. 28.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) a coin (b) a ping-pong ball (c) an empty capped bottle (d) a dry leaf
30. 30.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
31. 31.🛟 Does a cork float or sink in water? (a) floats (b) sinks
32. 32.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
33. 33.🔍 Which is the odd one out? (a) an empty capped bottle (b) a steel spoon (c) a ball of clay (d) an iron nail
34. 34.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
35. 35.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the amount of clay (b) whether it floats (c) the shape of the clay
36. 36.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it dissolves (c) it floats (d) it bounces up
37. 37.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) a tub of water (c) small test objects (d) a results table
38. 38.🛟 Which of these floats on water? (a) a ball of clay (b) a piece of thermocol (c) a coin (d) a steel spoon
39. 39.True or false: a coin sinks in water. (a) False (b) True
40. 40.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) leave water on the floor (c) wipe up spills at once (d) run around the tub

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