2.0 Heat affects matter in different ways. 2.1 States of Matter and The Particle Model of Matter. Matter is made up of tiny particles and exists in three states: solid, liquid and gas. The Particle Model of Matter is a scientific description of the tiny particles that make up all things.
The definition of a bough is the branch of a tree. An example of bough is the branch of a cherry tree. branch of a tree, esp. a main branch. Origin of bough.
Word forms: plural boas. 1. countable noun. A boa or a feather boa is a long soft scarf made of feathers or of short pieces of very light fabric. She wore a large pink boa around her neck. 2. countable noun. A boa is the same as a boa constrictor.