Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 379 · 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.🛟 Does a feather float or sink in water? (a) sinks (b) floats
2. 2.True or false: a pebble floats on water. (a) False (b) True
3. 3.⚖️ 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) whether it floats (d) the shape of the clay
4. 4.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
5. 5.🛟 Which of these sinks in water? (a) a feather (b) an empty capped bottle (c) a coin (d) a dry leaf
6. 6.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
7. 7.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the cork itself (d) the tub
8. 8.🔍 Which is the odd one out? (a) a ball of clay (b) a steel spoon (c) a pebble (d) a ping-pong ball
9. 9.⚖️ 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) True (b) False
10. 10.⚖️ 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 shape of the clay (c) the tub of water (d) the amount of clay
11. 11.True or false: an ice cube floats on water. (a) False (b) True
12. 12.True or false: a ball of clay sinks in water. (a) False (b) True
13. 13.🔮 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
14. 14.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) small test objects (c) a balloon (d) a battery cell
15. 15.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
16. 16.⚖️ 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) True (b) False
17. 17.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is very cold (c) ice is magnetic (d) ice is less dense
18. 18.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a tub of water (d) turmeric powder
19. 19.🔮 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
20. 20.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a battery cell (c) a towel for spills (d) a results table
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.🛟 Does a cork float or sink in water? (a) floats (b) sinks
23. 23.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it sinks (c) it melts (d) it floats higher
24. 24.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the tub of water (b) whether it floats (c) the shape of the clay
25. 25.🔍 Which is the odd one out? (a) a dry leaf (b) an ice cube (c) a steel spoon (d) a feather
26. 26.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
27. 27.True or false: a ball of clay floats on water. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) a coin (b) a pebble (c) a ball of clay (d) an empty capped bottle
29. 29.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) wipe up spills at once (c) leave water on the floor (d) run around the tub
30. 30.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) a few ice cubes (c) lots of salt stirred in (d) more plain water
31. 31.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
32. 32.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
33. 33.⚖️ 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) False (b) True
34. 34.🧺 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) small test objects (d) turmeric powder
35. 35.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
36. 36.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) neither of them (c) both of them (d) the big log
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) whether it floats (c) the amount of clay
38. 38.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) small test objects (d) yeast
39. 39.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it dissolves (c) it sinks (d) it floats
40. 40.🔍 Which is the odd one out? (a) a metal key (b) a glass marble (c) an iron nail (d) an ice cube

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