Earth, Moon, and Sun: Chapter 1 Flashcard

Front

What does it mean to illuminate an object?

Back

To shine light on an object and make it visible.

Front

How does light from the sun travel?

Back

In straight lines.

Front

What is the main source of light at the center of our solar system?

Back

The Sun.

Front

What happens to the Moon's illumination by the Sun?

Back

The sun illuminates the half of the Moon that is facing it, and the other half is dark.

Front

Should all models be 'to scale'?

Back

No, some things are too big or too small to see.

Front

What is the Moon?

Back

A natural satellite that orbits the Earth.

Front

What is the Earth?

Back

The third planet from the Sun, which supports life.

Front

What is an orbit?

Back

The path an object takes as it moves around another object in space.

Front

What is the difference between the Sun and the Moon?

Back

The Sun is a star that produces light, while the Moon is a satellite that reflects light from the Sun.

Front

What is a solar system?

Back

A collection of planets, moons, asteroids, and comets that orbit a star.