Science Lesson:
Paper Clip
Alka Seltzer Rocket

Lesson 1:

Why do Paper clips float in water?


Outline: Metal Floats
Video Link: How to place a paper clip in water


Where’s the Chemistry?

Water molecules tend to stick together. This cohesion is strong enough at the surface of the water to form a “skin”.  By spreading the objects’ weight over a large area on the surface of the water, you were able to make them float without breaking the water’s“skin”.