Discover what sugar is made of, how it forms, and its chemical name and formula. Learn about its properties and everyday uses in food and energy.

Iron makes up about 5 per cent of the Earth's crust and is the most abundant element in the whole Earth (about 35 per cent).

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 ...