Because the universe is expanding, the light from other galaxies as it reaches Earth is _______________________.

How do scientists know that the universe is expanding?

A cloud of dust and gas in space is a(n) ___________.

Which pair of elements primarily make up a nebula?

Elliptical is the shape of a ____________.

What did the solar system form from?

Alpha Centuri is 4 light years from Earth.

How long would it take for light from Alpha Centuri to reach Earth?

What happens to the force of gravity between two masses if they are moved closer?

What happens to the force of gravity between two masses if they are moved farther apart?

Which choice states the planet or planets that have an elliptical orbit around the sun?

What separates Mars from Jupiter?

What is caused by the tilt of the Earth on its axis?

What force controls the movement of the planets around the sun, holds together stars grouped in galaxies, and galaxies grouped in clusters?

These are called the “terrestrial” planets because they all have rocky crusts and dense mantles and core. They have few, if any, moons.

These are called the “Gas Giants” even though the planets are actually liquid due to the pressure being very high. They are less dense and usually have many moons.

This is the largest of all the planets and it has 60+ natural satellites. It is made of mostly hydrogen gas with ice crystals because it is very far from the sun and very cold. It has a giant red spot that is a massive storm!

This is the 2nd largest planet in our solar system and it is made of gases & ice crystals. This planet has an extravagant ring system that is kept in place by the planet’s gravitational pull. The rings are mostly pieces of space rock(some small, some large).

This planet has a unique configuration because its axis of rotation is tilted sideways, nearly into the plane of its solar orbit. Its north and south poles are where most other planets have their equators.

LAST QUESTION: Who can rock this test and TGA?