The Big Bang

Most scientists believe the Big Bang Theory explains which of the following questions?

• How our planets and moons formed

• How our universe began

• How the sun turns hydrogen into helium

• How fast light travels through space

Which statement is true?

• The galaxies are moving toward us.

• The galaxies are moving away from us.

• The universe remains static or unchanged in motion.

• None of the above

How old do scientists think the Universe is?

• 13.8 billion years old
• 4.5 billion years old
• 24,000 years old
• 5 years old

Which of the following is NOT true about the Big Bang Theory?

• It is the scientific explanation of how life began on Earth and evolved over time.
• It is the scientific explanation for the origin of the universe.
• It states that the universe expanded from a single point and is still expanding today.
• It states that the universe used to be much hotter and smaller.

According to the Big Bang Theory, what is happening to the size of the universe?

• The universe is growing

• The universe is shrinking

• The universe is staying the same size

• The universe rides on the back of four elephants, supported by a turtle.

What is a galaxy?

• Like a solar system, but made of dust

• A cluster of thousands of stars all floating together in space

• A cellphone made by the Nokia company

• A grouping of hundreds of millions of stars held together by gravity

What is the shape of the Milky Way galaxy?

• Linear

• Elliptical

• Spiral

• Irregular

Which of the following objects is the biggest?

• Solar system

• Universe

• Galaxy

• Star

Which of the following objects is the biggest?

• Galaxy

• Star

• Planet

• Solar system

What is Hubble's Law?

• The farther away a galaxy is from us, the faster it moves away from us.

• The farther away a galaxy is from us, the slower it moves away from us.

• The closer a galaxy is to us, the faster it moves away from us.

• The more red light we observe from another galaxy, the closer we are to that galaxy