4-2 What is a star?

Front

What is the color of the coolest stars?

Back

Red

Front

The sun is a glowing ball of _______.

Back

super hot gases

Front

How old is the Sun?

Back

about 5 billion years old

Front

How many Earths could fit inside the Sun?

Back

about 1,000,000

Tags

NGSS.MS-ESS1-3

Front

The Sun is our star made mostly of __________.

Back

hydrogen and helium

Tags

NGSS.MS-PS1-1

Front

What is a star?

Back

A star is a massive, luminous sphere of plasma held together by gravity.

Tags

NGSS.HS-ESS1-1

Front

What is the main source of energy for stars?

Back

Nuclear fusion, where hydrogen atoms combine to form helium.

Tags

NGSS.HS-ESS1-1

Front

What is the closest star to Earth?

Back

Proxima Centauri.

Front

What is the process by which stars are born?

Back

Stars are born from clouds of gas and dust in space, called nebulae.

Front

What is a supernova?

Back

A supernova is a powerful explosion that occurs when a star reaches the end of its life cycle.

Tags

NGSS.HS-ESS1-3