Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 159 · 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.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it sinks faster (c) it turns to stone (d) it dissolves
2. 2.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it dissolves (c) it still floats (d) it sinks
3. 3.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a magnet (c) turmeric powder (d) a towel for spills
4. 4.True or false: an empty capped bottle sinks in water. (a) True (b) False
5. 5.🛟 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 splash everyone (d) to win a prize
6. 6.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
7. 7.🔍 Which is the odd one out? (a) an empty capped bottle (b) a feather (c) a dry leaf (d) an iron nail
8. 8.🛟 Which of these sinks in water? (a) a ping-pong ball (b) an iron nail (c) an ice cube (d) a feather
9. 9.True or false: a ping-pong ball sinks in water. (a) True (b) False
10. 10.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a balloon (d) a tub of water
11. 11.⚖️ 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) False (b) True
12. 12.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
13. 13.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
14. 14.⚖️ 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 amount of clay (c) the shape of the clay
15. 15.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a battery cell (c) small test objects (d) a tub of water
16. 16.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it sinks (c) it melts (d) it floats higher
17. 17.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) a magnet (d) small test objects
18. 18.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) turmeric powder (c) a tub of water (d) a magnet
19. 19.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) turmeric powder (c) a results table (d) small test objects
20. 20.⚖️ 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
21. 21.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
22. 22.⚖️ 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
23. 23.True or false: a ball of clay floats on water. (a) True (b) False
24. 24.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
25. 25.🛟 Which of these floats on water? (a) a glass marble (b) a steel spoon (c) a piece of thermocol (d) a ball of clay
26. 26.True or false: an ice-cream stick floats on water. (a) False (b) True
27. 27.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
28. 28.⚖️ 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
29. 29.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
30. 30.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is what we measure. (a) True (b) False
31. 31.🛟 Does a feather float or sink in water? (a) floats (b) sinks
32. 32.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a results table (c) a mirror (d) turmeric powder
33. 33.🛟 Which of these sinks in water? (a) a feather (b) a dry leaf (c) an ice cube (d) a coin
34. 34.🔍 Which is the odd one out? (a) an ice-cream stick (b) a ping-pong ball (c) an ice cube (d) a steel spoon
35. 35.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a pebble (c) a cork (d) a ping-pong ball
36. 36.⚖️ 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 measure it (b) we keep it the same (c) we change it
37. 37.🔍 Which is the odd one out? (a) a piece of thermocol (b) an empty capped bottle (c) an ice cube (d) a metal key
38. 38.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) yeast (c) a results table (d) a tub of water
39. 39.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) ice is less dense (d) water is sticky
40. 40.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True

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