Front

Weight of the atmosphere: High= Happy, Low= Lousy

Back

Air Pressure

Front

Phases of the moon as seen from Earth throughout the month.

Back

Lunar Cycle

Front

Area where 2 air masses with different densities meet

Back

weather front

Front

1 complete trip along an orbit around a celestial body.

Back

revolution

Front

Force of attraction between all masses in the universe

Back

Gravitational Attraction

Front

Temperature change causes fluids to expand; less dense rises, more dense sinks.

Back

convection current

Front

The moon is less than half lit up

Back

crescent moon

Front

What will happen next...

Back

Predict

Front

Birthplace and death of a star

Back

nebula

Front

A system supported by substantial evidence from scientific investigations.

Back

theory