Earth & Space Science Semester 1 Final Exam

Front

Why do planets orbit the Sun?

Back

The planets are held in orbit because of the gravity created by the Sun.

Front

What has changed in the theory explaining the Sun's motion across the sky?

Back

New technology and research has allowed scientists to reevaluate the conclusions drawn from the original observation.

Front

What is the term for large-scale groups of stars bound together by gravitational attraction?

Back

Galaxies.

Front

What is the term for a giant wave caused by an earthquake with an epicenter on the ocean floor?

Back

Tsunami.

Front

Lakes, rivers, and oceans are all part of which Earth system?

Back

Hydrosphere.

Front

What is gravity?

Back

A force that attracts two bodies towards each other, such as the Earth and the Moon.

Front

What is the difference between a planet and a star?

Back

A planet orbits a star and does not produce its own light, while a star generates light and heat through nuclear fusion.

Front

What is the Earth's atmosphere?

Back

A layer of gases surrounding the Earth, essential for life and weather.

Front

What is a solar system?

Back

A collection of planets and other celestial bodies that orbit a star.

Front

What is the role of the Sun in our solar system?

Back

The Sun provides light and heat, and its gravity keeps the planets in orbit.