Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 363 · 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) whether it floats (c) the shape of the clay (d) the amount of clay
2. 2.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is kept the same. (a) False (b) True
3. 3.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a towel for spills (c) a tub of water (d) small test objects
5. 5.🛟 Which of these floats on water? (a) a coin (b) a ball of clay (c) a glass marble (d) an empty capped bottle
6. 6.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
7. 7.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
8. 8.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
9. 9.True or false: a ball of clay 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) a results table (c) a mirror (d) a tub of water
11. 11.🔍 Which is the odd one out? (a) a metal key (b) a pebble (c) a ball of clay (d) a cork
12. 12.⚖️ 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 measure it (c) we keep it the same
13. 13.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to hide the corks (c) to splash everyone (d) to win a prize
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) a battery cell
15. 15.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) wipe up spills at once (d) leave water on the floor
16. 16.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it turns blue (c) it melts (d) it sinks
17. 17.True or false: yeast 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) small test objects (b) a towel for spills (c) turmeric powder (d) a results table
19. 19.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) a ball of clay (b) a metal key (c) a ping-pong ball (d) a coin
21. 21.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
22. 22.🔍 Which is the odd one out? (a) a metal key (b) an ice cube (c) an iron nail (d) a coin
23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) the amount of clay (c) the tub of water (d) whether it floats
24. 24.True or false: a glass marble sinks in water. (a) True (b) False
25. 25.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) sea water is warm (c) steel is very light (d) its hollow shape
26. 26.⚖️ 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
27. 27.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a balloon (c) a results table (d) a magnet
28. 28.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
29. 29.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) turmeric powder (d) a tub of water
30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) a battery cell (d) small test objects
31. 31.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
32. 32.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
33. 33.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it still floats (d) it turns white
34. 34.🧊 Why does an ice cube float on water? (a) ice is less dense (b) water is sticky (c) ice is very cold (d) ice is magnetic
35. 35.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
36. 36.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
37. 37.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) the big log (c) neither of them (d) both of them
38. 38.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
39. 39.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) a balloon (d) a tub of water
40. 40.🛟 Which of these floats on water? (a) a dry leaf (b) a pebble (c) a coin (d) a glass marble

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