2SG1 - Unit 2 Mid-Unit Study Guide

____ is when ground fires do not flame but burn more slowly and have the tendency to spread deep into the ground and laterally.

zombie fires

____ is something with a lot of energy in it that can burn. Ex: Wood, gasoline, and alcohols.

fuel

____ is formed over time by layers of dead plants building up underwater and not decomposing.

peat

____ cannot be created or destroyed and is a measure of something’s ability to do work.

energy

Everything is made up of ____, which has mass and can commonly be found as a solid, liquid, or gas.

matter

____ is a large store of carbon (energy/matter) that keeps it out of the atmosphere.

carbon sink

____ are blackened areas left on the forest floor after a fire.

burn scar

____ refers to how social (human) and ecological systems influence one another.

soci-ecological components

____ is a subsurface layer of ground that stays frozen year-round.

permafrost

____ is a process in plants that converts sunlight into food (sugars). It combines carbon dioxide and water to form sugars and release oxygen.

photosynthesis

____ occurs in plants and animals, involving chemical reactions with oxygen that release stored energy.

cellular respiration

The orientation of the Earth's axis of rotation relative to the sun is known as ____.

tilt

____ is the energy stored in the bonds of chemical compounds.

chemical energy

The ____ variable is the one being changed under investigation. Ex: The fuel we burned.

independent

The ____ variable is what is affected by the change. Ex: The mass of the solid after burning.

dependent