Advisory - Earth and Space

Front

What is a warm front?

Back

A warm front is a boundary between a warm air mass and a cold air mass, where the warm air rises over the cold air, often leading to precipitation.

Front

What direction do warm fronts typically move?

Back

Warm fronts typically move northeast.

Front

What is a Stellar Nebula?

Back

A Stellar Nebula is a cosmic cloud of dust and gas that is the first stage in the birth of a star.

Front

What type of weather is associated with high pressure?

Back

High pressure is associated with dry weather because there is not enough room in the air for moisture to get in.

Front

What are the three main types of galaxies?

Back

The three main types of galaxies are spiral, elliptical, and irregular.

Front

Where is our solar system located in the Milky Way galaxy?

Back

Our solar system is located on one of the spiral arms of the Milky Way galaxy.

Front

What is the difference between a protostar and a stellar nebula?

Back

A protostar is a developing star that is still gathering mass from its parent molecular cloud, while a stellar nebula is the cloud of gas and dust from which stars are born.

Front

What is the significance of the cosmic microwave background radiation?

Back

The cosmic microwave background radiation is the afterglow of the Big Bang and provides evidence for the origin of the universe.

Front

What is the role of gravity in the formation of stars?

Back

Gravity pulls together gas and dust in a stellar nebula, leading to the formation of a protostar and eventually a star.

Front

What is an irregular galaxy?

Back

An irregular galaxy is a galaxy that does not have a distinct regular shape, often containing a mix of stars, gas, and dust.