EPS Unit 1 Test Review KRSNAK

Front

What is the best estimate of the number of stars in our solar system?

Back

One

Front

What changes about Neil Armstrong while he was on the Moon?

Back

His weight

Front

How can the inner planets of the solar system be best described?

Back

Dense, rocky planets with few moons

Front

What is the role of gravity in maintaining the solar system?

Back

Gravity keeps the planets in orbit around the Sun

Front

Where do new stars most likely form?

Back

In a nebula

Front

What is a nebula?

Back

A large cloud of gas and dust in space where new stars can form.

Front

What are the inner planets of the solar system?

Back

Mercury, Venus, Earth, and Mars.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force of gravity acting on that mass.

Front

What is a protostar?

Back

A dense region in a nebula where a star is beginning to form.

Front

What is a supernova?

Back

A powerful explosion that occurs at the end of a star's life cycle.