Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 943 · 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.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
2. 2.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the kind of clay (c) the amount of clay (d) the shape of the clay
4. 4.True or false: an ice cube sinks in water. (a) True (b) False
5. 5.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
6. 6.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
7. 7.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) a magnet (c) yeast (d) a battery cell
8. 8.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
9. 9.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a magnet (c) a results table (d) a towel for spills
10. 10.🔍 Which is the odd one out? (a) a ball of clay (b) a pebble (c) a steel spoon (d) a cork
11. 11.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is less dense (c) ice is magnetic (d) ice is very cold
12. 12.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it turns to stone (c) it can float (d) it sinks faster
13. 13.🧺 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 tub of water (d) a battery cell
14. 14.🛟 Which of these floats on water? (a) a metal key (b) a coin (c) a pebble (d) a cork
15. 15.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
16. 16.⚖️ 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 measure it (b) we keep it the same (c) we change it
17. 17.True or false: an iron nail sinks in water. (a) True (b) False
18. 18.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
19. 19.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a towel for spills (c) a mirror (d) a battery cell
20. 20.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the tub (d) the water
21. 21.🛟 Does a cork float or sink in water? (a) sinks (b) floats
22. 22.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it still floats (c) it turns white (d) it sinks
23. 23.🔍 Which is the odd one out? (a) a pebble (b) a ball of clay (c) a steel spoon (d) a piece of thermocol
24. 24.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a feather (c) an ice cube (d) a metal key
25. 25.🔍 Which is the odd one out? (a) a glass marble (b) a ping-pong ball (c) an empty capped bottle (d) a feather
26. 26.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a magnet (c) a results table (d) a towel for spills
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 keep it the same (b) we change it (c) we measure it
28. 28.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
29. 29.🛟 Which of these floats on water? (a) a coin (b) a feather (c) a glass marble (d) a steel spoon
30. 30.⚖️ 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
31. 31.🛟 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
32. 32.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) wipe up spills at once (d) run around the tub
33. 33.🔍 Which is the odd one out? (a) an iron nail (b) a steel spoon (c) a pebble (d) an ice cube
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) whether it floats (b) the shape of the clay (c) the kind of clay
35. 35.🧺 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) a towel for spills (d) small test objects
36. 36.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) small test objects (d) a mirror
37. 37.🛟 Which of these sinks in water? (a) a feather (b) an empty capped bottle (c) a glass marble (d) a ping-pong ball
38. 38.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) more plain water (c) lots of salt stirred in (d) a little shaking
39. 39.⚖️ 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
40. 40.⚖️ 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

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