Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 259 · 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.🧺 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 battery cell (d) small test objects
2. 2.True or false: a steel spoon sinks in water. (a) False (b) True
3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we keep it the same (c) we measure it
4. 4.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a balloon (c) a mirror (d) a results table
5. 5.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
6. 6.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a towel for spills (c) a balloon (d) a mirror
7. 7.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it floats higher (c) it melts (d) it turns blue
8. 8.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) False (b) True
9. 9.🛟 Which of these floats on water? (a) a pebble (b) a metal key (c) a piece of thermocol (d) an iron nail
10. 10.🛟 Which of these floats on water? (a) a glass marble (b) a steel spoon (c) a coin (d) a ping-pong ball
11. 11.🛟 Which of these sinks in water? (a) a glass marble (b) an ice cube (c) an empty capped bottle (d) a cork
12. 12.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) leave water on the floor (c) wipe up spills at once (d) run around the tub
13. 13.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a tub of water (c) a mirror (d) a magnet
14. 14.🛟 Does a coin float or sink in water? (a) sinks (b) floats
15. 15.⚖️ 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
16. 16.⚖️ 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
17. 17.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) a results table (d) a balloon
18. 18.🌊 What pushes a floating cork upward? (a) the tub (b) the air above (c) the water (d) the cork itself
19. 19.🧺 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 tub of water (d) yeast
20. 20.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) yeast (d) a tub of water
21. 21.True or false: an ice-cream stick floats on water. (a) True (b) False
22. 22.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the big log (c) neither of them (d) the small pebble
23. 23.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
24. 24.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
25. 25.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
26. 26.🛟 Which of these sinks in water? (a) a dry leaf (b) a cork (c) a coin (d) a piece of thermocol
27. 27.🛟 Which of these floats on water? (a) an iron nail (b) a dry leaf (c) a coin (d) a glass marble
28. 28.🧺 Which of these is not needed for the float-or-sink test? (a) a battery cell (b) a towel for spills (c) small test objects (d) a tub of water
29. 29.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it dissolves (c) it sinks (d) it bounces up
30. 30.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is magnetic (c) water is sticky (d) ice is less dense
31. 31.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
32. 32.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it sinks faster (c) it can float (d) it dissolves
33. 33.⚖️ 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
34. 34.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
35. 35.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
36. 36.⚖️ 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 amount of clay (b) the tub of water (c) the kind of clay (d) the shape of the clay
37. 37.True or false: a cork sinks in water. (a) False (b) True
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 measure it (b) we keep it the same (c) we change it
39. 39.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to hide the corks (c) to win a prize (d) to keep children safe
40. 40.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks

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