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.
(plural bollards) (nautical) A strong vertical post of timber or iron, fixed to the ground and/or on the deck of a ship, to which the ship's mooring lines etc are secured; A similar post preventing vehicle access to a pedestrian area, to delineate traffic lanes, or used for security purposes.