Chemistry
The basic unit of a chemical element
Atom
A gas that reacts with nothing.
Noble gas
The star around which the earth rotates.
sun
a substance or material that allows electricity to flow through it
Conductor
The bottom trophic level in an ecosystem
What are producers
The center of an atom consisting of protons and neutrons.
Nucleus
This element has a symbol of K
Potassium
An eclipse in which the sun is obscured by the moon.
Solar eclipse.
Static electricity
a non-living thing in an ecosystem
Abiotic factors
When one chemical substance is transformed into one or more different substances. ex. Iron becomes rust
Chemical change
Halogens
A region of space having a gravitational field so intense that no matter or radiation can escape
Black hole
Any component of a circuit that consumes power or energy
electrical load
organism that breaks down dead organic material
Decomposers
The total number of protons and neutrons in a nucleus.
Mass number
this compound is written as NaCl
Sodium chloride
A very large star of high luminosity and low surface tempature
red giant
measured by Ohms
Resistance
the process in which nitrogen gas becomes nitrates
Nitrogen fixation
A mixture that has the same proportions of its components throughout the given sample.
this compound is written as ZnBr2
Zinc Bromide
A cloud of gas and dust in outer space visible in the night sky either as an indistinct bright patch or as a dark silhouette against other luminous matter
Nebula
The process of generating current in a conductor by placing it in a changing magnetic field
Induction
the 4 stages of this cycle are Weathering, Absorption by Plants, Absorption by Animals, Return to the Environment through Decomposition.
the phosphorous cycle