Unit 4. Motion of Earth, Moon and Sun (22-23)

Front

What does the term 'equinox' mean?

Back

Equal amount of daylight and equal amount of night.

Front

What is the tilt of the Earth's axis in degrees?

Back

23.5 degrees.

Front

What do we call the phase of the Moon when it appears to be 'getting smaller'?

Back

Waning.

Front

How long does the cycle of the Moon last?

Back

About a month.

Front

What is the phase of the Moon called when it is completely dark?

Back

New Moon.

Front

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

Back

Full Moon.

Front

What is the term for the position of the Earth in relation to the Sun during summer solstice?

Back

The Earth is tilted towards the Sun.

Front

What is the term for the position of the Earth in relation to the Sun during winter solstice?

Back

The Earth is tilted away from the Sun.

Front

What is the effect of the Earth's tilt on seasons?

Back

It causes variations in sunlight received, leading to different seasons.

Front

What is the term for the time it takes for the Moon to complete one full cycle of phases?

Back

Lunar month.