Term | Definition |
solar system | our sun and the planets that move around it |
atmosphere | the whole mass of air that surrounds the Earth |
scientific thought | having ideas and forming testable hypotheses |
theory | an idea or set of ideas that is intended to explain facts or events |
gravity | the force that causes things to fall towards the Earth |
gravitational force | a force that attracts any objects with mass |
position | the place where something is in relation to other things |
interact | to act together |
contribution | something that is done to cause something to happen |
star | any one of the objects in space that are made of burning gas and that look like points of light in the night sky |
planet | a large, round object in space that travels around a star |
orbit | the curved path that something follows as it goes around something else |
rotation | the act or process of moving or turning around a central point |
limitation | a limiting condition |
Mercury | the planet that is closest to the sun |
Venus | the planet that is second from the sun and the hottest |
Earth | the planet that is third from the sun, has water in all three forms |
Mars | the planet that is fourth from the sun, is red |
Jupiter | the planet that is fifth from the sun, is the largest |
Saturn | the planet that is sixth from the sun, is the lightest and the most moons |
Neptune | the planet that the furthest from the sun |
Uranus | the planet that is seventh from the sun, is dark with black rings |
Pluto | used to be considered a planet |
Sun | the star that the Earth moves around and that gives the Earth heat and light |
Moon | the large round object that circles the Earth and that shines at night by reflecting light from the sun |
temperature | a measurement that indicates how hot or cold something is |
mass | a measure of the amount of matter in a
solid, liquid, or gas |
system | a group of related parts that move or work together |
energy | ability to be active |
model | a usually small copy of something |
freshwater | relating to, or living in water that is not salty |
characteristics | typical of a person, thing, or group |
precipitation | water that falls to the ground as rain, snow, etc. |
air temperature | a measurement of how hot or cold the air is |
wind direction | the direction from which the wind is blowing |
heat energy | a form of energy that is transferred by a difference in temperature. |
weather | the state of the air and atmosphere at a particular time and place |