Earth Moon Sun System Post-Test

Front

What is the Moon doing during the part of the month where it appears to be getting SMALLER every night?

Back

The Moon is Waning.

Front

Why do we have a 366th day once every four years?

Back

It takes 365.25 days for Earth to revolve around the Sun.

Front

What is Earth's axis?

Back

An imaginary line from the North Pole to the South Pole.

Front

During a New Moon, people on Earth see a moon that is...

Back

Not lit up at all.

Front

What is the Fuzzy Edge Part of a Shadow?

Back

Penumbra.

Front

What is the phase of the Moon when it is fully illuminated?

Back

Full Moon.

Front

What causes the seasons on Earth?

Back

The tilt of Earth's axis as it revolves around the Sun.

Front

What is the term for the time it takes for the Moon to complete one orbit around the Earth?

Back

Lunar month, approximately 29.5 days.

Front

What is the difference between a solar eclipse and a lunar eclipse?

Back

A solar eclipse occurs when the Moon passes between the Earth and the Sun, while a lunar eclipse occurs when the Earth passes between the Sun and the Moon.

Front

What is the term for the darkest part of a shadow?

Back

Umbra.