Planetary Systems Vocabulary

Intensity of the force of gravity at the surface of earth or celestial body.

The force of gravity on an object.

Small rocky body orbiting the sun.

• comet

• asteroid

• meteor

• meteorite

Tags

NGSS.MS-ESS1-3

Scientist who studies prehistoric life forms using fossils

• historian

• paleontologist

• fossilologist

• astrologist

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Breakdown and movement of a planet's surface by the action of gravity, running water, waves, currents, ice, and wind.

Tags

NGSS.MS-ESS2-2

Any preserved remains, impression, or trace of any once-living thing from a past geological age.

Tags

NGSS.MS-LS4-1

Whenever an object is moving forward and at the same time is pulled by gravity towards another object.

• law of inertia

• gravity

• orbital motion

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

When rocks and minerals are decomposed into simpler materials by means of mechanical, chemical, and biological processes.

Earth like planets made up of rocks or metals with a hard surface.

Name the terrestrial planets.