Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 133 · 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? Which of these is the one thing we change? (a) the kind of clay (b) the shape of the clay (c) the amount of clay (d) the tub of water
2. 2.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to splash everyone (c) to hide the corks (d) to win a prize
3. 3.True or false: a feather floats on water. (a) False (b) True
4. 4.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the tub (d) the cork itself
5. 5.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) False (b) True
6. 6.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) small test objects (d) a balloon
7. 7.🔍 Which is the odd one out? (a) a coin (b) a dry leaf (c) a piece of thermocol (d) a ping-pong ball
8. 8.🧺 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
9. 9.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it sinks faster (c) it turns to stone (d) it can float
10. 10.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) a tub of water (d) turmeric powder
11. 11.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) run around the tub (c) play near a deep pond (d) wipe up spills at once
12. 12.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) yeast (c) turmeric powder (d) a mirror
13. 13.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) a magnet (d) a towel for spills
14. 14.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a towel for spills (c) a magnet (d) yeast
15. 15.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a balloon (c) a tub of water (d) turmeric powder
16. 16.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a balloon (c) yeast (d) a results table
17. 17.⚖️ 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 keep it the same (c) we change it
18. 18.⚖️ 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 keep it the same (c) we measure it
19. 19.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) small test objects (d) a magnet
20. 20.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
21. 21.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
22. 22.⚖️ 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) True (b) False
23. 23.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
24. 24.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is magnetic (c) water is sticky (d) ice is very cold
25. 25.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it bounces up (c) it dissolves (d) it floats
26. 26.🔍 Which is the odd one out? (a) a metal key (b) a steel spoon (c) a feather (d) a coin
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.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
29. 29.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
30. 30.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
31. 31.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a cork (c) an ice-cream stick (d) a ball of clay
32. 32.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it still floats (d) it dissolves
33. 33.🔍 Which is the odd one out? (a) a metal key (b) an ice cube (c) a coin (d) an iron nail
34. 34.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
35. 35.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a pebble (c) a cork (d) an ice-cream stick
36. 36.⚖️ 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 amount of clay (c) whether it floats
37. 37.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) small test objects (c) a towel for spills (d) a tub of water
38. 38.True or false: a feather sinks in water. (a) False (b) True
39. 39.⚖️ 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 change it (c) we keep it the same
40. 40.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks

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