Cycles of the Sky

Front

What is the tilt of the Earth's axis?

Back

The Earth's axis is always tilted at an angle of approximately 23.5 degrees.

Front

What does the term 'equinox' mean?

Back

Equinox refers to the time when day and night are of equal length, occurring twice a year.

Front

What phase of the Moon is characterized by no visible illumination?

Back

The new moon phase is when the Moon is not visible from Earth.

Front

Define 'Gibbous' in relation to the Moon's phases.

Back

Gibbous refers to a phase of the Moon when more than half of it is illuminated.

Front

What does 'Quarter Moon' mean?

Back

Quarter Moon refers to the phase of the Moon when half of it is visible from Earth.

Front

What is the significance of the Earth's tilt in relation to seasons?

Back

The tilt of the Earth's axis causes the changing seasons as different parts of the Earth receive varying amounts of sunlight throughout the year.

Front

What are the two equinoxes called?

Back

The two equinoxes are called the Vernal Equinox (Spring) and the Autumnal Equinox (Fall).

Front

What is a full moon?

Back

A full moon is the phase of the Moon when it is fully illuminated and appears as a complete circle.

Front

What is the difference between a waxing and waning moon?

Back

A waxing moon is increasing in illumination, while a waning moon is decreasing in illumination.

Front

What is the term for the longest day of the year?

Back

The longest day of the year is known as the Summer Solstice.