Science Notes Flashcards
energy
The ability to do work
radiation
The movement of energy through electromagnetic waves
convection
The movement of matter caused by differences in density.
conduction
The transfer of heat energy through collisions of the atoms or molecules of a substance.
albedo
Measure of the percentage of light that a particular surface will reflect
internal
The estimated temp. At the center of the Earth is about 5500 C.
external
More than 99.9% of the thermal energy that we feel on the ground, in the ocean water, and the atmosphere comes either directly or indirectly from the sun.
element
A substance that cannot be broken down into simpler substances by chemical means
mineral
Occurs naturally
Inorganic Coal is not inorganic, fossils are not inorganic, limestone X
Solid
Has a specific chemical composition H2O
Has a definite crystalline structure
crystal
a piece of a homogeneous solid substance having a natural geometrically regular form with symmetrically arranged plane faces.
luster
How the mineral reflects light from its surface
hardness
Is a measure of how easily a mineral can be scratched
cleavage
Shape, direction and angles the mineral forms when broken
Breaks easily, means it has cleavage
fracture
Break with a ragged or jagged edges because of its tightly bonded atoms
streak
Is the color of a mineral when it is broken up and powdered
