Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 237 · 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.⚖️ 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
2. 2.⚖️ 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 tub of water
3. 3.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it melts (c) it sinks (d) it floats higher
4. 4.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
5. 5.🛟 Does a feather float or sink in water? (a) sinks (b) floats
6. 6.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) an iron nail (b) a cork (c) a metal key (d) a glass marble
8. 8.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
9. 9.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
10. 10.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
11. 11.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the tub of water (b) the shape of the clay (c) the kind of clay (d) whether it floats
12. 12.⚖️ 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
13. 13.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) lots of salt stirred in (c) a few ice cubes (d) a little shaking
14. 14.⚖️ 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) whether it floats
15. 15.🔍 Which is the odd one out? (a) an empty capped bottle (b) a cork (c) a ping-pong ball (d) a ball of clay
16. 16.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) turmeric powder (c) a towel for spills (d) a results table
17. 17.⚖️ 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) False (b) True
18. 18.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) small test objects (d) a battery cell
19. 19.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) a results table (d) turmeric powder
20. 20.🛟 Which of these floats on water? (a) a pebble (b) a feather (c) a metal key (d) a glass marble
21. 21.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is kept the same. (a) False (b) True
22. 22.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a magnet (c) a towel for spills (d) a balloon
23. 23.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to splash everyone (c) to win a prize (d) to hide the corks
24. 24.True or false: a battery cell 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) turmeric powder (d) a tub of water
26. 26.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a mirror (c) a tub of water (d) a results table
27. 27.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a metal key (c) an ice cube (d) an ice-cream stick
28. 28.🔍 Which is the odd one out? (a) an ice cube (b) an iron nail (c) a cork (d) a ping-pong ball
29. 29.🛟 Which of these floats on water? (a) a ball of clay (b) an ice cube (c) a coin (d) a steel spoon
30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) a mirror (b) a towel for spills (c) small test objects (d) a tub of water
31. 31.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a towel for spills (c) a results table (d) a balloon
32. 32.True or false: a coin floats on water. (a) False (b) True
33. 33.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) small test objects (c) a results table (d) a towel for spills
34. 34.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it turns white (d) it still floats
35. 35.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is very cold (c) ice is less dense (d) ice is magnetic
36. 36.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we measure it (c) we change it
37. 37.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the tub (d) the water
38. 38.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
39. 39.🛟 Which of these floats on water? (a) a metal key (b) a pebble (c) a glass marble (d) an empty capped bottle
40. 40.True or false: yeast is needed for the float-or-sink test. (a) True (b) False

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