Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 315 · 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 not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a results table (d) a balloon
2. 2.🌊 What pushes a floating cork upward? (a) the cork itself (b) the air above (c) the water (d) the tub
3. 3.⚖️ 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
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a balloon (d) a tub of water
5. 5.⚖️ 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
6. 6.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
7. 7.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
8. 8.True or false: a ping-pong ball floats on water. (a) True (b) False
9. 9.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it sinks (c) it dissolves (d) it bounces up
10. 10.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a results table (d) a mirror
11. 11.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the tub of water (c) the shape of the clay (d) the amount of clay
12. 12.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) an iron nail (b) a pebble (c) a piece of thermocol (d) a coin
14. 14.⚖️ 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) True (b) False
15. 15.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a results table (c) a mirror (d) a balloon
16. 16.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it dissolves (c) it turns to stone (d) it sinks faster
17. 17.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
18. 18.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
19. 19.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) sea water is warm (c) it has a magnet (d) its hollow shape
20. 20.🧺 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 magnet (d) a towel for spills
21. 21.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) play near a deep pond (c) run around the tub (d) leave water on the floor
22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a towel for spills (c) a results table (d) small test objects
23. 23.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
24. 24.True or false: a glass marble floats on water. (a) False (b) True
25. 25.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
26. 26.🔍 Which is the odd one out? (a) a feather (b) an empty capped bottle (c) a pebble (d) an ice-cream stick
27. 27.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) True (b) False
28. 28.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
29. 29.🛟 Does a cork float or sink in water? (a) floats (b) sinks
30. 30.🛟 Does a coin float or sink in water? (a) floats (b) sinks
31. 31.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) yeast (c) small test objects (d) a battery cell
32. 32.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to win a prize (c) to keep children safe (d) to splash everyone
33. 33.🔍 Which is the odd one out? (a) a coin (b) an iron nail (c) a steel spoon (d) an ice cube
34. 34.🛟 Which of these floats on water? (a) a pebble (b) a coin (c) a ping-pong ball (d) an iron nail
35. 35.⚖️ 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 kind of clay (c) whether it floats (d) the amount of clay
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.⚖️ 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
38. 38.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it floats higher (c) it sinks (d) it melts
39. 39.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) turmeric powder (d) a results table
40. 40.🛟 Which of these sinks in water? (a) a cork (b) an ice-cream stick (c) a ping-pong ball (d) a pebble

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