Entire Year

Rotation

• The spinning of Earth on its axis
• Sound will travel the worst, or slowest, through this state of matter
• do not change speed or direction
• The term for any wave that hits a surface and bounces off.

Revolution

• The movement of an object around another object
• visible light includes all the colors of the rainbow but the we only see the colors that are reflected back
• An organism's particular role in an ecosystem, or how it makes its living.
• Earth's rotation on its axis

sun

• The star at the center of our solar system
• A streak of light in the sky produced by the burning of a meteoroid in Earth's atmosphere.
• A series of steps in which organisms transfer energy by eating and being eaten
• the greater the mass, the more force necessary to get an object to accelerate or move

asteroid

• any of numerous small celestial bodies composed of rock and metal that move around the sun (mainly between the orbits of Mars and Jupiter)
• An animal that hunts other animals for food
• The term for any wave that hits a surface and bounces off.
• A huge group of single stars, star systems, star clusters, dust, and gas bound together by gravity

comet

• Earth's rotation takes about
• A loose collection of ice and dust that orbits the sun, typically in a long, narrow orbit.
• The name of our galaxy
• distance divided by time

meteor

• A streak of light in the sky produced by the burning of a meteoroid in Earth's atmosphere.
• to allow light to pass through
• This is an echo. When sound bounces off a flat, dense, surface it echoes.
• A huge group of single stars, star systems, star clusters, dust, and gas bound together by gravity

Meteoroid

• Items of more density. These objects reflect sound energy.
• A sound wave with a higher frequency.
• a relatively small, rocky body that travels through space
• A relationship between two organisms of different species where one benefits and the other is harmed

meteorite

• A form of energy that can be seen.
• An object that separates white light into bands of colored light. (It refracts light.)
• A meteoroid that has hit earth's surface.
• Plants use the sun's energy to convert water and carbon dioxide into food

Gravity

• a relatively small, rocky body that travels through space
• A force of attraction between objects that is due to their masses.
• Items of more density. These objects reflect sound energy.
• The term for any wave that hits a surface and bounces off.

What causes day and night on Earth?

• A sound wave with a higher frequency.
• A force of attraction between objects that is due to their masses.
• Earth's rotation on its axis
• is a measure of gravitational force between earth and an object, on Earth this is the same as mass