Earth. Sun, Moon

Front

What is the heliocentric model?

Back

The heliocentric model is an astronomical model that places the Sun at the center of the solar system, with the Earth and other planets orbiting around it.

Front

What is the geocentric model?

Back

The geocentric model is an astronomical model that places the Earth at the center of the universe, with the Sun, Moon, and stars orbiting around it.

Front

What was the Apollo program?

Back

The Apollo program was a series of space missions conducted by NASA that aimed to land humans on the Moon and bring them safely back to Earth.

Front

What is a neap tide?

Back

A neap tide occurs when the Sun and Moon are at right angles relative to the Earth, resulting in the lowest tidal range.

Front

What is a spring tide?

Back

A spring tide occurs when the Sun and Moon are aligned, resulting in the highest tidal range.

Front

What season is it in the Northern Hemisphere when the North Pole is tilted towards the Sun?

Back

It is summer in the Northern Hemisphere when the North Pole is tilted towards the Sun.

Front

What is the significance of the Earth's tilt?

Back

The Earth's tilt (approximately 23.5 degrees) is responsible for the changing seasons as it affects the angle and intensity of sunlight received at different times of the year.

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, blocking the Sun's light. A lunar eclipse occurs when the Earth passes between the Sun and the Moon, casting a shadow on the Moon.

Front

What causes the phases of the Moon?

Back

The phases of the Moon are caused by the changing positions of the Moon, Earth, and Sun, which affect how much of the Moon's surface is illuminated from our perspective.

Front

What is the role of gravity in the solar system?

Back

Gravity is the force that keeps planets, moons, and other celestial bodies in orbit around the Sun and each other.