Earth Science: Unit 2 Pre-assessment

Front

What is a solar eclipse?

Back

A solar eclipse occurs when the Moon passes between the Earth and the Sun, blocking the Sun's light.

Front

What is the significance of the alignment of the Sun, Moon, and Earth in relation to ocean tides?

Back

The alignment affects the height of ocean tides; during full moons and new moons, tides are higher due to gravitational forces.

Front

What is a lunar eclipse?

Back

A lunar eclipse occurs when the Earth passes between the Sun and the Moon, causing the Earth's shadow to cover the Moon.

Front

What is a neap tide?

Back

A neap tide is a high tide that is lower than normal, occurring when the Sun and Moon are at right angles relative to the Earth.

Front

What causes the seasons on Earth?

Back

Seasons are caused by the tilt of the Earth's axis and its orbit around the Sun.

Front

What is the role of gravity in tides?

Back

Gravity from the Moon and the Sun pulls on Earth's water, creating high and low tides.

Front

What happens during a total lunar eclipse?

Back

During a total lunar eclipse, the Moon is completely covered by Earth's shadow, often appearing red.

Front

What is the difference between a full moon and a new moon?

Back

A full moon occurs when the Moon is fully illuminated by the Sun, while a new moon occurs when the Moon is between the Earth and the Sun and is not visible.

Front

What is the effect of the Earth's axial tilt on climate?

Back

The axial tilt affects the intensity and duration of sunlight received at different latitudes, influencing climate and seasons.

Front

What is the significance of the star Vega in relation to Earth's axial precession?

Back

Vega is expected to be the pole star in about 14,000 years due to the slow wobble of Earth's axis.