Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 570 · 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? True or false: the shape of the clay is the one thing we change. (a) True (b) False
2. 2.⚖️ 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
3. 3.🧺 Which of these is not needed for the float-or-sink test? (a) a balloon (b) a tub of water (c) a results table (d) a towel for spills
4. 4.True or false: a glass marble floats on water. (a) True (b) False
5. 5.🛟 Which of these floats on water? (a) a steel spoon (b) a ping-pong ball (c) a coin (d) an iron nail
6. 6.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
7. 7.⚖️ 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
8. 8.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
9. 9.⚖️ 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
10. 10.🔍 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
11. 11.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
12. 12.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
13. 13.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
14. 14.True or false: a ping-pong ball sinks in water. (a) False (b) True
15. 15.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
16. 16.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
17. 17.🛟 Which of these sinks in water? (a) a ball of clay (b) a feather (c) a ping-pong ball (d) an empty capped bottle
18. 18.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a tub of water (c) turmeric powder (d) a battery cell
19. 19.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
20. 20.⚖️ 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) the tub of water (c) whether it floats (d) the kind of clay
21. 21.⚖️ 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 keep it the same (b) we change it (c) we measure it
22. 22.🧺 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) turmeric powder
23. 23.🛟 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
24. 24.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
25. 25.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a cork (c) a coin (d) an ice cube
26. 26.🧺 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
27. 27.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a glass marble (c) a cork (d) an ice-cream stick
28. 28.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is very cold (c) water is sticky (d) ice is magnetic
29. 29.🔍 Which is the odd one out? (a) a coin (b) an empty capped bottle (c) a glass marble (d) a metal key
30. 30.🛟 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 hide the corks (d) to win a prize
31. 31.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
32. 32.True or false: a feather floats on water. (a) False (b) True
33. 33.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it dissolves (c) it still floats (d) it sinks
34. 34.🧺 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) a mirror (d) a results table
35. 35.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the small pebble (c) the big log (d) neither of them
36. 36.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a mirror (d) a towel for spills
37. 37.🛟 Which of these sinks in water? (a) a metal key (b) an ice cube (c) a cork (d) a dry leaf
38. 38.🔍 Which is the odd one out? (a) an ice-cream stick (b) a steel spoon (c) a piece of thermocol (d) a dry leaf
39. 39.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
40. 40.True or false: a results table is needed for the float-or-sink test. (a) False (b) True

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