Chapter 8-Planet Earth and Its Moon

___________ spinning of a planet, moon, or star

around its axis.

Rotation

_____________ movement of one object around another

Revolution

__________ path an object follows as it revolves around another object

Orbit

________a shape that is like a circle stretched out

in opposite directions.

Ellipse

__________ event in which one object in space gets

between the sun and another object.

Eclipse

_______________ event in which the moon passes through Earth’s shadow.

Lunar eclipse

___________ event in which the moon passes between the sun

and Earth.

Solar eclipse

________ the government agency that

runs the U.S. space program.

NASA

________________ cause changes in patterns that are seen in the sky.

Earth’s movements

Earth makes a rotation on an imaginary axis in

about _________.24 hours

Earth revolves around the sun in about _________.365 days

The ____________ depend on where the

sun, moon, and Earth are.

moon’s phases

Each time the moon rotates on its axis,

_____________________it revolves once around Earth

In an _______, an object in space casts its shadow

on another.

eclipse

NASA uses technology such as the ___________ and _________________

to study space.

space stationthe Hubble Telescope

_____________ has changed greatly as a result

of space exploration.

Communication