"Amber" lesson, let us know what amber is, the conditions and process of amber formation.

I will introduce amber to others. Amber is a kind of resin fossil formed after certain chemical changes.

Conditions and process of amber formation;

(1) turpentine balls are made of turpentine: it's hot, old pine trees, and turpentine just covers flies and spiders.

(2) From turpentine ball to amber: the crust changes, and turpentine is submerged under the sea sand for a long time.