Introduction Have you ever noticed on a rainy day how water forms droplets on a window? Why does it do that instead of spreading out evenly over the whole surface? You might not guess it but this ...

The paper clip is on the water but is not floating like a boat which is less dense than water. The paper clip is more dense than water but can rest on the surface of the water because of the water's ...

THE letter of Prof. Harkins, concerning some of the methods used for measuring surface tension, 1 contains a statement about the ring method which may mislead the reader; and the addition of a few ...

Disposable microplates with 96 or more sample wells are widely used in the modern laboratory for biochemical and molecular biological experiments. Fluorescent or coloured reaction products can be ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...