Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 816 · 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) small test objects (b) turmeric powder (c) a towel for spills (d) a tub of water
2. 2.🛟 Does a ball of clay float or sink in water? (a) sinks (b) floats
3. 3.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a few ice cubes (c) a little shaking (d) lots of salt stirred in
4. 4.True or false: a pebble floats on water. (a) False (b) True
5. 5.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it turns blue (d) it sinks
6. 6.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
7. 7.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) whether it floats (c) the kind of clay (d) the shape of the clay
8. 8.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
9. 9.🧊 Why does an ice cube float on water? (a) ice is very cold (b) water is sticky (c) ice is less dense (d) ice is magnetic
10. 10.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) wipe up spills at once (d) leave water on the floor
11. 11.⚖️ 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) False (b) True
12. 12.🛟 Which of these floats on water? (a) a glass marble (b) a steel spoon (c) an empty capped bottle (d) a pebble
13. 13.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) the small pebble (c) neither of them (d) both of them
14. 14.⚖️ 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 keep it the same (b) we change it (c) we measure it
15. 15.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
16. 16.🔍 Which is the odd one out? (a) a ping-pong ball (b) an iron nail (c) a glass marble (d) a metal key
17. 17.🔍 Which is the odd one out? (a) a ball of clay (b) a metal key (c) a pebble (d) a piece of thermocol
18. 18.🔮 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
19. 19.🧺 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
20. 20.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) small test objects (d) yeast
21. 21.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a balloon (c) a tub of water (d) small test objects
22. 22.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
23. 23.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to splash everyone (c) to keep children safe (d) to win a prize
24. 24.True or false: an ice cube sinks in water. (a) True (b) False
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a magnet (d) a results table
26. 26.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
27. 27.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
28. 28.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
29. 29.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it sinks (c) it bounces up (d) it dissolves
30. 30.⚖️ 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
31. 31.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
32. 32.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
33. 33.⚖️ 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) True (b) False
34. 34.⚖️ 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 tub of water (d) the kind of clay
35. 35.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) a tub of water (d) a battery cell
36. 36.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
37. 37.⚖️ 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
38. 38.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
39. 39.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a magnet (c) a results table (d) a mirror
40. 40.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a results table (d) a mirror

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