Across
- 2. the force of attraction experienced by two or more objects in contrast.
- 4. the envelope of gases surrounding the earth or another planet.
- 6. planet a large planet primarily composed of gases like hydrogen and helium.
- 8. the practice of using natural resources responsibly to support the health and well-being of current and future generations.
- 10. belt a region of space between the orbits of Mars and Jupiter where most of the asteroids in our Solar System are found orbiting the Sun.
Down
- 1. the entirety of space, time, and all matter and energy that exist within them.
- 3. the specific makeup of a substance.
- 5. System the collection of 8 planets and their moons in orbit around the sun.
- 7. the outermost layer.
- 9. planet a planet with a surface made of ice.