The Big Bang Assignment (use notes)

According to most astronomers, how many years ago did the Universe begin in a Big Bang?

• 10 billion years

• 12 billion years

• 14 billion years

• 16 billion years

At the time of the Big Bang, the entire Universe was inside a bubble that was thousands of times smaller than a _______.

• pinhead

• grain of sand

• atom

• molecule

The Universe at the time of the Big Bang was ______ and ______ than anything we can imagine.

• hotter, denser
• cooler, denser

What event marked the beginning of time, space, and matter?

• The Big Bang

• The Ice Age

• The Renaissance

• The Industrial Revolution

In a fraction of a second, the Universe grew from smaller than a single atom to bigger than a _______.

• galaxy

• planet

• star

• moon

What is the current state of the Universe according to your notes?

• Contracting

• Static

• Expanding

• Collapsing

As the Universe expanded and cooled, energy changed into ______ and antimatter.

• matter

• dark matter

• radiation

• plasma

When did protons and neutrons start to form in the Universe?

• One second after the Big Bang

• One minute after the Big Bang

• One hour after the Big Bang

• One day after the Big Bang

After how many years did the Universe cool to about 3000 degrees?

• 100,000 years

• 200,000 years

• 300,000 years

• 400,000 years

What is the time period during which we cannot see anything that happened in the Universe?

• 100,000 years

• 200,000 years

• 300,000 years

• 400,000 years