Stars

Front

What is the main sequence stage of a star?

Back

The main sequence is the longest stage in a star's life cycle where it fuses hydrogen into helium in its core, producing energy and light.

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

Front

What color of star indicates the highest temperature?

Back

Blue stars are the hottest, followed by white, yellow, orange, and red stars.

Front

What is a red giant?

Back

A red giant is a late stage in the life cycle of a low to medium mass star, characterized by expansion and cooling of the outer layers.

Tags

NGSS.HS-ESS1-3

Front

What is a black dwarf?

Back

A black dwarf is a theoretical stellar remnant that occurs when a white dwarf has cooled sufficiently that it no longer emits significant heat or light.

Front

What is a supergiant star?

Back

A supergiant is a very large star that is much brighter than a giant star, often found at the end of its life cycle.

Tags

NGSS.HS-ESS1-3

Front

What is a protostar?

Back

A protostar is an early stage in the formation of a star, where gas and dust collapse under gravity but nuclear fusion has not yet begun.

Front

What is the life cycle of a low mass star?

Back

A low mass star evolves from a protostar to a main sequence star, then to a red giant, and finally to a white dwarf and eventually a black dwarf.

Tags

NGSS.HS-ESS1-1

Front

What is the difference between a star and a planet?

Back

A star is a massive celestial body that produces its own light through nuclear fusion, while a planet is a smaller body that orbits a star and does not produce its own light.

Front

What is the significance of the Hertzsprung-Russell diagram?

Back

The Hertzsprung-Russell diagram is a scatter plot of stars showing the relationship between their absolute magnitudes and stellar classifications, helping to understand stellar evolution.

Tags

NGSS.HS-ESS1-3

Front

What is a nebula?

Back

A nebula is a giant cloud of dust and gas in space, often the birthplace of stars.