SSA Vocab. #3: Practice Set

Front

An organism that breaks down organic matter from dead organisms.

Back

Decomposer

Front

Concentration of matter; individuals of the same species in an area; mass per unit volume of a substance.

Back

Density

Front

Heat transfer in gas or liquid by circulation due to density differences.

Back

Convection

Front

Outermost layer of Earth covering the mantle

Back

Crust

Front

Peak of a wave

Back

crest

Front

Nucleic acid carrying genetic material in all cellular organisms.

Back

DNA

Front

Smallest unit of matter; unique atom; cannot be reduced chemically.

Back

Element

Front

Coil of wire around a core; magnetized with current flow.

Back

electromagnet

Front

Shaking of the ground caused by sudden energy release in the crust.

Back

Earthquake

Front

Energy transfer process; moves through matter or vacuum.

Back

electromagnetic radiation