Topic 5 Earth-Moon-Sun

Front

What are spring tides?

Back

Spring tides occur when the Earth, Moon, and Sun are aligned, typically during the new and full moon phases, resulting in higher high tides and lower low tides.

Front

What are neap tides?

Back

Neap tides occur when the Earth, Moon, and Sun form a right angle, typically during the first and third quarter moon phases, resulting in lower high tides and higher low tides.

Front

What causes a lunar eclipse?

Back

A lunar eclipse occurs when the Earth is positioned directly between the Sun and the Moon, causing Earth's shadow to fall on the Moon.

Front

What causes a solar eclipse?

Back

A solar eclipse occurs when the Moon is positioned directly between the Sun and the Earth, blocking the Sun's light from reaching the Earth.

Front

What is the duration of insolation at the North Pole during the Summer Solstice?

Back

24 hours of continuous sunlight.

Front

How does the tilt of the Earth's axis affect seasons?

Back

The tilt of the Earth's axis (approximately 23.5 degrees) causes different parts of the Earth to receive varying amounts of sunlight throughout the year, leading to the changing seasons.

Front

What is the waxing crescent phase of the Moon?

Back

The waxing crescent phase occurs after the new moon and before the first quarter, where a small sliver of the Moon is illuminated and visible.

Front

What is the waning crescent phase of the Moon?

Back

The waning crescent phase occurs after the third quarter and before the new moon, where a small sliver of the Moon is illuminated and visible, decreasing in size.

Front

What is the significance of the Summer Solstice?

Back

The Summer Solstice marks the longest day of the year in the Northern Hemisphere, occurring around June 21, when the North Pole is tilted closest to the Sun.

Front

What is the significance of the Winter Solstice?

Back

The Winter Solstice marks the shortest day of the year in the Northern Hemisphere, occurring around December 21, when the North Pole is tilted farthest from the Sun.