Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 949 · 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.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it floats (c) it dissolves (d) it sinks
2. 2.⚖️ 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) the kind of clay (c) the tub of water (d) the shape of the clay
3. 3.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it melts (c) it turns blue (d) it floats higher
4. 4.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
5. 5.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the kind of clay”? (a) we change it (b) we measure it (c) we keep it the same
6. 6.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
7. 7.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to keep children safe (d) to hide the corks
8. 8.⚖️ 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
9. 9.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a balloon (d) a towel for spills
10. 10.🌊 What pushes a floating cork upward? (a) the air above (b) the tub (c) the water (d) the cork itself
11. 11.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
12. 12.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
13. 13.⚖️ 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 change it (b) we keep it the same (c) we measure it
14. 14.🔍 Which is the odd one out? (a) a coin (b) a ping-pong ball (c) a piece of thermocol (d) an ice-cream stick
15. 15.🔍 Which is the odd one out? (a) a pebble (b) a piece of thermocol (c) a coin (d) a steel spoon
16. 16.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it turns to stone (c) it sinks faster (d) it dissolves
17. 17.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
18. 18.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) small test objects (c) a results table (d) a tub of water
19. 19.🧺 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) a magnet (d) a towel for spills
20. 20.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) small test objects (d) a battery cell
21. 21.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
22. 22.True or false: a dry leaf sinks in water. (a) False (b) True
23. 23.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) a few ice cubes (c) a little shaking (d) more plain water
24. 24.🛟 Which of these floats on water? (a) an iron nail (b) a feather (c) a coin (d) a metal key
25. 25.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it still floats (c) it dissolves (d) it sinks
26. 26.🔍 Which is the odd one out? (a) an ice cube (b) a dry leaf (c) a pebble (d) a feather
27. 27.⚖️ 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 measure it (c) we keep it the same
28. 28.⚖️ 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 change it (c) we keep it the same
29. 29.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
30. 30.🛟 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) run around the tub (d) wipe up spills at once
31. 31.⚖️ 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
32. 32.🧊 Why does an ice cube float on water? (a) ice is less dense (b) water is sticky (c) ice is magnetic (d) ice is very cold
33. 33.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) yeast (d) a results table
34. 34.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
35. 35.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
36. 36.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a tub of water (c) a magnet (d) a mirror
37. 37.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
38. 38.⚖️ 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 shape of the clay (c) the amount of clay (d) the kind of clay
39. 39.🔍 Which is the odd one out? (a) a steel spoon (b) a pebble (c) a coin (d) an empty capped bottle
40. 40.⚖️ 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

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