Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 793 · 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.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) yeast (c) a balloon (d) a tub of water
2. 2.🔮 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
3. 3.⚖️ 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 shape of the clay (b) the kind of clay (c) the tub of water (d) the amount of clay
4. 4.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
5. 5.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
6. 6.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) steel is very light (c) it has a magnet (d) sea water is warm
7. 7.🧺 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) turmeric powder (d) a results table
8. 8.⚖️ 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
9. 9.True or false: yeast is not needed for the float-or-sink test. (a) True (b) False
10. 10.🛟 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
11. 11.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) neither of them (c) the small pebble (d) both of them
12. 12.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
13. 13.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) a magnet (c) turmeric powder (d) a balloon
14. 14.True or false: an ice-cream stick sinks in water. (a) False (b) True
15. 15.🛟 Which of these sinks in water? (a) a feather (b) a cork (c) an ice-cream stick (d) a glass marble
16. 16.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) False (b) True
17. 17.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a balloon (c) small test objects (d) a results table
18. 18.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) a magnet (d) small test objects
19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) False (b) True
20. 20.🛟 Which of these floats on water? (a) a ball of clay (b) a glass marble (c) a steel spoon (d) a piece of thermocol
21. 21.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) True (b) False
22. 22.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
23. 23.⚖️ 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
24. 24.🛟 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
25. 25.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
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 results table (c) a battery cell (d) small test objects
27. 27.🛟 Which of these sinks in water? (a) an ice cube (b) an iron nail (c) a piece of thermocol (d) an ice-cream stick
28. 28.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) the amount of clay (c) the tub of water (d) whether it floats
30. 30.🔍 Which is the odd one out? (a) a coin (b) a ball of clay (c) an ice-cream stick (d) a pebble
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a towel for spills (c) small test objects (d) a results table
32. 32.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
33. 33.True or false: a ball of clay floats on water. (a) False (b) True
34. 34.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a mirror (c) small test objects (d) a tub of water
35. 35.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) small test objects (c) turmeric powder (d) a magnet
36. 36.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
37. 37.🛟 Which of these sinks in water? (a) a steel spoon (b) an ice cube (c) a ping-pong ball (d) a feather
38. 38.⚖️ 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 measure it (c) we change it
39. 39.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a balloon (c) a magnet (d) a results table
40. 40.🌊 What pushes a floating cork upward? (a) the water (b) the tub (c) the air above (d) the cork itself

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