Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 201 · 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.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) both of them (c) neither of them (d) the big log
2. 2.True or false: a piece of thermocol sinks in water. (a) True (b) False
3. 3.🛟 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
4. 4.⚖️ 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
5. 5.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it turns blue (c) it melts (d) it floats higher
6. 6.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is magnetic (c) ice is very cold (d) ice is less dense
7. 7.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it sinks (c) it still floats (d) it turns white
8. 8.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
9. 9.🔮 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
10. 10.🧺 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) small test objects (d) a results table
11. 11.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a balloon (c) a tub of water (d) small test objects
13. 13.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
14. 14.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a magnet (c) a balloon (d) a results table
15. 15.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
16. 16.⚖️ 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 shape of the clay (d) the kind of clay
17. 17.🔍 Which is the odd one out? (a) a dry leaf (b) an ice-cream stick (c) a coin (d) an ice cube
18. 18.🔍 Which is the odd one out? (a) an iron nail (b) a ping-pong ball (c) an ice cube (d) an ice-cream stick
19. 19.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
20. 20.🛟 Which of these floats on water? (a) an ice-cream stick (b) a ball of clay (c) a steel spoon (d) a metal key
21. 21.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) lots of salt stirred in (c) a little shaking (d) a few ice cubes
22. 22.⚖️ 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) whether it floats (c) the tub of water
23. 23.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a battery cell (c) a towel for spills (d) yeast
24. 24.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
25. 25.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) yeast (c) small test objects (d) a balloon
26. 26.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the amount of clay (b) the shape of the clay (c) whether it floats
27. 27.🛟 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
28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) turmeric powder (c) a results table (d) small test objects
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) whether it floats (b) the shape of the clay (c) the kind of clay
30. 30.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
31. 31.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) False (b) True
32. 32.🛟 Does a feather float or sink in water? (a) sinks (b) floats
33. 33.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
34. 34.⚖️ 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) True (b) False
35. 35.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
36. 36.🌊 What pushes a floating cork upward? (a) the water (b) the cork itself (c) the tub (d) the air above
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a magnet (c) a tub of water (d) small test objects
38. 38.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) yeast (c) a tub of water (d) a towel for spills
39. 39.⚖️ 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
40. 40.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True

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