L to J Q3

Axis

A line through an object around which it rotates

Planets

A round object that orbits the Sun and dominates its orbit

Rotation

The spinning of a body, like Earth, on its axis

Comets

A small body of ice and dust that orbits the Sun

Revolution

The motion of one body around another, like Earth's orbit around the Sun

Asteroid

small, rocky bodies that move with a solar system

Eclipse

the blocking of the light from an astronomical body by the shadow of another body

Gravitational pull

the force of attraction between all masses in the universe

Magnetic field

a region where a magnetic force can be observed

Terrestrial Planet

a planet primarily composed of rock

Inertia

tendency of an object to resist change in motion

Atmosphere

the envelope of gases surrounding the earth or another planet

Astronomy

the branch of science which deals with celestial objects, space, and the physical universe as a whole

Moon

the natural satellite of the earth, visible by reflected light from the sun

Tides

the alternating rise and fall of the ocean or other large bodies of water

Orbit

the curved path in which a planet, satellite, or spacecraft moves in a circle around another body

Gas Giant

a planet primarily composed of gases

Mass

a measure of the amount of matter an object has

Weight

measure of the force of gravity on an object, can change based on location

Galaxy

a group of stars, clouds of gas, and dust particles that move together through the universe

Meteoroid

chunk of rock or metal from space that falls through the atmosphere, or layer of gases, surrounding Earth

Meteorite

chunk of rock or metal from space that survives its fall and reaches Earth's surface

Solar flares

areas where a large amount of energy is released to the surface of the Sun

Sunspot

any of the dark spots that appear at times on the sun's surface and are usually visible only through a telescope

Nuclear fusion

the process of joining 2 or more smaller atoms to make a larger atom

Respiratory System

system that brings oxygen into the body releases carbon dioxide

Reproductive System

system that allows the production of offspring

Nervous System

system that regulates the body's response to stimuli

Immune System

system that protects the body against infection

Tissue

a group of specialized cells

Digestive system

system that breaks down food into energy for the body

Organ

a group of tissues that work together to carry out a specific function

Endocrine system

system of glands that make hormones to regulate the body

Circulatory System

system that provides a flow of nutrients throughout the body

Cell

Basic unit of life