Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 617 · 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.🛟 Which of these floats on water? (a) an iron nail (b) a coin (c) a ball of clay (d) a dry leaf
2. 2.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) True (b) False
3. 3.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is magnetic (c) ice is less dense (d) water is sticky
4. 4.⚖️ 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 measure it (b) we keep it the same (c) we change it
5. 5.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a tub of water (d) a mirror
6. 6.🛟 Which of these floats on water? (a) a metal key (b) a pebble (c) a coin (d) an ice-cream stick
7. 7.🔍 Which is the odd one out? (a) a steel spoon (b) a ping-pong ball (c) a coin (d) a ball of clay
8. 8.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) a piece of thermocol (b) an ice cube (c) a coin (d) a ping-pong ball
10. 10.⚖️ 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
11. 11.⚖️ 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 amount of clay (b) whether it floats (c) the tub of water (d) the shape of the clay
12. 12.🛟 Which of these floats on water? (a) an ice cube (b) a coin (c) an iron nail (d) a ball of clay
13. 13.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) wipe up spills at once (c) play near a deep pond (d) run around the tub
14. 14.🔍 Which is the odd one out? (a) a ping-pong ball (b) a cork (c) a steel spoon (d) a dry leaf
15. 15.🛟 Which of these floats on water? (a) a glass marble (b) a ball of clay (c) a cork (d) a pebble
16. 16.🔍 Which is the odd one out? (a) a ball of clay (b) a coin (c) a steel spoon (d) an ice cube
17. 17.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) steel is very light (c) its hollow shape (d) sea water is warm
18. 18.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
19. 19.⚖️ 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) False (b) True
20. 20.🔍 Which is the odd one out? (a) a dry leaf (b) a metal key (c) an empty capped bottle (d) an ice-cream stick
21. 21.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a magnet (c) a tub of water (d) turmeric powder
22. 22.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a balloon (c) a results table (d) a towel for spills
23. 23.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
24. 24.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it still floats (c) it turns white (d) it dissolves
25. 25.🛟 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
26. 26.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) yeast (c) small test objects (d) a tub of water
27. 27.🔮 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
28. 28.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) True (b) False
29. 29.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
30. 30.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) a mirror (c) a balloon (d) yeast
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a results table (d) a battery cell
32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we keep it the same (c) we change it
33. 33.🌊 What pushes a floating cork upward? (a) the tub (b) the cork itself (c) the air above (d) the water
34. 34.True or false: an ice-cream stick floats on water. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) an iron nail (b) a steel spoon (c) a feather (d) a metal key
36. 36.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) neither of them (c) both of them (d) the big log
37. 37.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
38. 38.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a pebble (c) a ping-pong ball (d) an ice-cream stick
39. 39.⚖️ 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
40. 40.🛟 Which of these floats on water? (a) a metal key (b) a coin (c) an iron nail (d) a ping-pong ball

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