Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 316 · 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.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
2. 2.🔍 Which is the odd one out? (a) a dry leaf (b) a cork (c) an ice cube (d) a ball of clay
3. 3.🧺 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) yeast
4. 4.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
5. 5.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
6. 6.🧊 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
7. 7.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) leave water on the floor (d) wipe up spills at once
8. 8.True or false: a feather sinks in water. (a) False (b) True
9. 9.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) neither of them (c) the big log (d) the small pebble
10. 10.⚖️ 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) the amount of clay (c) the kind of clay (d) whether it floats
11. 11.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
12. 12.🌊 What pushes a floating cork upward? (a) the water (b) the cork itself (c) the tub (d) the air above
13. 13.⚖️ 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
14. 14.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a feather (c) a piece of thermocol (d) a metal key
15. 15.🔍 Which is the odd one out? (a) a dry leaf (b) a piece of thermocol (c) a cork (d) a metal key
16. 16.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a battery cell (c) a balloon (d) a tub of water
17. 17.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
18. 18.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it sinks (c) it floats higher (d) it melts
19. 19.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
20. 20.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to keep children safe (c) to win a prize (d) to splash everyone
21. 21.🛟 Which of these sinks in water? (a) a cork (b) an ice cube (c) a ball of clay (d) a ping-pong ball
22. 22.⚖️ 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 kind of clay (c) whether it floats
23. 23.🛟 Which of these floats on water? (a) an iron nail (b) a metal key (c) a steel spoon (d) a feather
24. 24.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a balloon (c) a results table (d) small test objects
25. 25.🔍 Which is the odd one out? (a) a metal key (b) an iron nail (c) an ice-cream stick (d) a coin
26. 26.🔍 Which is the odd one out? (a) an ice cube (b) a steel spoon (c) a cork (d) a dry leaf
27. 27.🔍 Which is the odd one out? (a) a steel spoon (b) a ball of clay (c) a piece of thermocol (d) a pebble
28. 28.🛟 Does a cork float or sink in water? (a) sinks (b) floats
29. 29.🧺 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 results table (d) a magnet
30. 30.🔍 Which is the odd one out? (a) a ping-pong ball (b) a cork (c) an iron nail (d) a dry leaf
31. 31.🛟 Does a ball of clay float or sink in water? (a) sinks (b) floats
32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) True (b) False
33. 33.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we keep it the same (c) we measure it
34. 34.True or false: an iron nail floats on water. (a) True (b) False
35. 35.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a results table (c) a tub of water (d) small test objects
36. 36.🧺 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 towel for spills (d) a results table
37. 37.🛟 Which of these sinks in water? (a) a steel spoon (b) a dry leaf (c) an ice-cream stick (d) an empty capped bottle
38. 38.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
39. 39.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a balloon (c) a towel for spills (d) small test objects
40. 40.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False

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