Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 386 · 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.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
2. 2.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a mirror (c) a tub of water (d) turmeric powder
3. 3.True or false: a pebble sinks in water. (a) True (b) False
4. 4.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) run around the tub (c) play near a deep pond (d) wipe up spills at once
5. 5.🔮 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
6. 6.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
7. 7.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) a mirror (d) a towel for spills
8. 8.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it turns to stone (c) it can float (d) it dissolves
9. 9.🛟 Which of these sinks in water? (a) a dry leaf (b) an ice-cream stick (c) a cork (d) an iron nail
10. 10.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) small test objects (c) a towel for spills (d) a tub of water
11. 11.🛟 Which of these floats on water? (a) a ping-pong ball (b) an iron nail (c) a steel spoon (d) a metal key
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a tub of water (c) a towel for spills (d) a results table
13. 13.⚖️ 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 change it (b) we keep it the same (c) we measure it
14. 14.🛟 Which of these floats on water? (a) an iron nail (b) a pebble (c) a cork (d) a glass marble
15. 15.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it melts (c) it floats higher (d) it sinks
16. 16.🔍 Which is the odd one out? (a) a piece of thermocol (b) an empty capped bottle (c) a cork (d) a steel spoon
17. 17.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) True (b) False
18. 18.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) its hollow shape (c) sea water is warm (d) it has a magnet
19. 19.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) lots of salt stirred in (c) a little shaking (d) more plain water
20. 20.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a battery cell (d) a towel for spills
21. 21.True or false: an iron nail floats on water. (a) False (b) True
22. 22.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is very cold (c) ice is magnetic (d) water is sticky
23. 23.⚖️ 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 tub of water (b) the kind of clay (c) the amount of clay (d) the shape of the clay
24. 24.🛟 Which of these sinks in water? (a) a coin (b) a feather (c) an ice-cream stick (d) a cork
25. 25.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) yeast (d) a results table
26. 26.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
27. 27.🛟 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
28. 28.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
29. 29.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
30. 30.⚖️ 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) True (b) False
31. 31.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
32. 32.⚖️ 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) True (b) False
33. 33.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) a balloon (c) a mirror (d) a battery cell
34. 34.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it floats (c) it bounces up (d) it dissolves
35. 35.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) yeast (c) a mirror (d) a balloon
36. 36.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
37. 37.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) small test objects (c) a results table (d) a tub of water
38. 38.True or false: a ping-pong ball floats on water. (a) False (b) True
39. 39.⚖️ 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
40. 40.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True

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