Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 621 · 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 tub of water (b) small test objects (c) a towel for spills (d) a magnet
2. 2.⚖️ 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) True (b) False
3. 3.🛟 Which of these floats on water? (a) a ping-pong ball (b) a coin (c) a ball of clay (d) a steel spoon
4. 4.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) a balloon (d) small test objects
5. 5.True or false: a ball of clay sinks in water. (a) False (b) True
6. 6.True or false: a dry leaf sinks in water. (a) True (b) False
7. 7.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) a tub of water (d) a balloon
8. 8.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it still floats (d) it dissolves
9. 9.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a tub of water (d) a magnet
10. 10.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
11. 11.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a battery cell (c) a magnet (d) a tub of water
12. 12.🌊 What pushes a floating cork upward? (a) the cork itself (b) the water (c) the air above (d) the tub
13. 13.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) a pebble (b) an iron nail (c) a ball of clay (d) an empty capped bottle
15. 15.⚖️ 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 kind of clay (b) whether it floats (c) the shape of the clay (d) the amount of clay
16. 16.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
17. 17.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) wipe up spills at once (d) leave water on the floor
18. 18.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
19. 19.🥚 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
20. 20.🔍 Which is the odd one out? (a) an ice cube (b) a feather (c) a steel spoon (d) a ping-pong ball
21. 21.⚖️ 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
22. 22.True or false: a ping-pong ball floats on water. (a) True (b) False
23. 23.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
24. 24.True or false: a dry leaf floats on water. (a) False (b) True
25. 25.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
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) whether it floats (c) the shape of the clay
27. 27.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
28. 28.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a balloon (c) a towel for spills (d) a battery cell
29. 29.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
30. 30.⚖️ 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) False (b) True
31. 31.🔮 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
32. 32.🔍 Which is the odd one out? (a) a coin (b) a glass marble (c) a feather (d) an iron nail
33. 33.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a tub of water (d) a mirror
34. 34.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it dissolves (c) it turns to stone (d) it sinks faster
35. 35.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
36. 36.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
37. 37.🔍 Which is the odd one out? (a) a metal key (b) a ball of clay (c) an ice-cream stick (d) a glass marble
38. 38.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a results table (d) turmeric powder
39. 39.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) the small pebble (c) neither of them (d) both of them
40. 40.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks

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