Water Systems and States: Components, Processes, and Temperature Changes

System

a group of parts that work together to perform a specific task.

Components

an artifact that is one of the individual parts of which a composite entity is made up.

Aquifier

an underground layer of water-bearing rock or sediment that holds and can transmit groundwater to wells and springs.

Particle

a small piece of anything.

Process

a sequence of steps or actions that happen in a particular order to produce a result or reach a goal.

Chemical reaction

a process in which one or more substances are converted to one or more different substances.

Water System

a river and all its tributaries.

Water

water is a resource that is vital for the survival of the planet.

Organ System

a team of different organs that work together to do a special, important job for the body.

Additive

a substance added to another substance in small amounts to change or improve it.

Contaminants

to make dirty, polluted, or not usable.

Liquid

Liquid water has particles that move freely.

Solid

Ice is formed when water is brought to a freezing temperature (0 degrees Celsius).

Gas

Water vapour is water in a gaseous state.

Celsius

a measurement scale based on the freezing and boiling point of water.

Boiling Point

the boiling point is the point at which a liquid boils and turns into vapour.

Temperature

a measurement of the average energy of all particles in a solid, liquid or gas.

Thermometers

are used to measure temperature.

Melting

When a solid becomes a liquid.

Freezing

When a liquid becomes a solid.

Evaporation

When a liquid becomes a gas.

Condensation

When a gas becomes a solid.

Transpiration

describes how water is transferred into the air by plants through evaporation from leaves, stems and flowers.