Chemistry

The study of matter and energy and how they interact.

Matter

anything that has volume, takes up space, and has mass

Density

The ratio of an object’s mass to its volume. It is a measure of how tightly packed the matter is.

Colloid

A heterogeneous mixture with particle that cannot be easily separated

Homogeneous mixture

A mixture that has uniform appearance and properties throughout but can be made of multiple elements mixed together (such as a metal alloy), multiple compounds and elements mixed together (such as air), or multiple compounds mixed together (such as a solution of sugar in water)

Heterogeneous mixture

A mixture that is clearly not uniform throughout and can be made of multiple compounds, multiple elements, or a combination of compounds and elements mixture – a substance that is made by mixing two or more parts, either compounds or elements, that do not chemically combine

Pure substance

A substance that consists of only one specific element or compound throughout

Suspension

A heterogenous mixture with particles that can be easily separated

Polar compounds

Compounds with a positive or negative (polar) charge

Nonpolar compounds

Compounds with molecules that do not have a polar charge

Solute

A substance that is dissolved in a solvent

Solution

A mixture made up of a solvent and a solute

Solvent

A substance that dissolves another substance

Exothermic process

An activity that results in an overall release of energy

Kinetic energy

The energy of an object due to its motion

Concentration

The amount of solute per unit of solution

Biodegrade

break down into natural elements in a short period of time

environmental literacy

to understand how human action and decision-making, the environment, and economic systems interact and are affected by each other

fossil fuel

fuel derived from the buried remains of plants and animals

fracking

collection of oil or natural gas from shale

Great Pacific Garbage Patch

located in the North Pacific, the largest collection of plastic waste in the world

physical properties

a measurable characteristic of matter, such as state, weight, color, hardness, melting point, boiling point

Pthalates

a family of manufactured chemical compounds used as additives in the manufacture of plastics, solvents, and personal care products

RIC code

resin identification code, used for recycling, that is stamped into most plastics

synthetic material

materials that are artificial or manufactured using chemical processes like plastic, modern pharmaceuticals, synthetic fibers or new fuels