Yazied science chapter 6 lessons # 3 &4

There are .............known planets that revolve around the sun

• 9

• 8

• 11

• 10

A large , round object that revolves around a star and has cleared the region around its orbit .

• axis

• orbit

• planet

• star

The four closest planets to the sun are called .............................

• inner planets

• outer planets

Is NOT one of the inner planets .???

• Venus

• Earth

• Neptune

• Mercury

• Mars

Are classified as inner planets !!!

• Mars

• Venus

• Saturn

• Earth

• Mercury

Like stars , planets give off their own light .

• true

• false

planets shine because light from a star reflects on its surface .

• true

• false

The orbit of the planets around the sun has ......................shape .

• circular

• elliptical

• random

• line

Planets stay in their orbits around the sun because of ....................

• gravity

• heat

• speed

• weight

Without the force of gravity of the sun , planets would not stay in their orbits .

• true

• false