Earth Science Unit 1 Review

What is the theory that explains the origin of the universe?

• String Theory
• Theory of Relativity
• Big Bang Theory
• Quantum Theory

Cosmic Background Radiation is evidence for the Big Bang Theory.

• True

• False

Which two elements are found in all stars?

• Hydrogen and Helium
• Oxygen and Nitrogen
• Carbon and Oxygen
• Iron and Nickel

Our sun is a ________ star compared to other stars.

• Small

• Medium

• Large

What is the approximate age of our universe?

• 14 billion years

• 4 billion years

• 10 billion years
• 20 billion years

What is the approximate age of our solar system?

• 4 billion years

• 2 billion years

• 1 billion years

• 7 billion years

How would you describe the size and temperature of the universe before the Big Bang?

• Small, dense, hot

• Small, not dense, hot

• Large, dense, cold

• Large, dense hot

Planet, star, universe, galaxy - List in order from smallest to largest.

• Planet, Star, Universe, Galaxy
• Star, Planet, Galaxy, Universe
• Planet, Star, Galaxy, Universe
• Star, Galaxy, Universe, Planet

What is the order of star color temperature in increasing order?

• Red, Blue, Yellow, White, Orange

• Blue, White, Orange, Yellow, Red

• Red, Orange, Yellow, White, Blue

• Orange, White, Yellow, Blue, Red

The Milky Way is a

• Galaxy

• Solar System

• Planet

• Star