5th Grade Science Vocabulary

Packet 4

Alternative Energy

Homework Due:__________             Weekly Quiz on:___________

Wind Energy

Power generated by the movement of air

Solar Energy

Energy generated by the sun

Nonrenewable Resource

Resources that nature cannot replace quickly enough to meet people’s needs; EX: fossil fuel and minerals

Hydroelectric Energy

Energy generated by moving water

Renewable Resource

A resource that nature produces that can be replaced in a short period of time; EX: animals and freshwater

Geothermal Energy

Energy generated by heat from the interior of the Earth

Biofuels

Fuel produced from renewable resources

Revolution

The action by a celestial body of going round a fixed course

Rotation/Rotate

The turning of the Earth on its imaginary axis (axial tilt)

Lunar

Homework Due:__________             Weekly Quiz on:___________

Crater

A bowl shaped depression with a raised rim, formed by the impact of a meteorite

Gravity

The natural force of attraction between any two objects, such as the Earth and Sun, which gets stronger the bigger the object

Tide

The periodic rise and fall of oceans under the gravitational pull of the moon (usually 2 high and 2 low tides each day) flow= forward, ebb= backward

Moon

A natural satellite that orbits the Earth that shines by the Sun’s reflected light (lunar is anything pertaining to the moon)

Orbit

The curved path around an object, such as the path a planet follows around the sun

Phases/Lunar Cycle

The different shapes of the moon as we see it from Earth during the time that the moon revolves around the Earth (waxing, waning, gibbous, crescent, full, new, and quarter)

Solar System

The sun, eight planets, and the other objects that orbit the sun in a predictable manner

Season

One of the four periods of the year (winter, spring, summer, fall/autumn)

Eclipse

The total or partial covering up of one celestial body by another