Science Chapter Three, Lesson 1 - Study Notes

All planets ______, or rotate on an axis.

• spin

• float

• melt

• freeze

An ______ is an imaginary line that runs through the earth from north to south poles.

• axis

• equator

• meridian

• latitude

An orbit is a path that a planet follows as it revolves around the sun.

• True

• False

The farther away from the sun, the longer the ______.

• orbit

• day

• shadow

• season

The longer the orbit, the longer it takes to revolve around the sun one time.

• True

• False

The earth orbits, or revolves around the sun one time every ______ days, or one year.

• 365 1/4

• 360

• 400

• 300

Each planet has a different "year", which can be figured out by dividing the amount of days in its orbit by ______.

• 365

• 24

• 12

• 7

The seasons are caused by the ______ of the earth.

• tilt

• rotation

• distance from the sun

• shape

An equinox is when the days and nights are equal length (spring and fall).

• True

• False

A ______ is when the amount of day or night is the longest it will be.

• solstice

• equinox

• lunar eclipse

• new moon