Big Bang Theory

What is the Big Bang Theory?

• It is one of the ideas that scientist have accepted as a possible explanation for the creation of our huge universe.

• It is the only explanation for the creation of our huge universe.

Lemaitre thought...

• the universe started as several points and then condensed

• the universe started as a single point and then stretched and expanded.

According to Lemaitre, is the universe still growing?

 

• Yes, it is still expanding.

• No, it stopped expanding.

The big bang theory presents the idea that the universe resulted from an explosion about how long ago?

• 14 million years ago

• 14 billion years ago

Stars and galaxies were formed by...

• grouping of atoms coming together

• grouping of dust coming together

• grouping of universes coming together

Gravity caused...

• stars, asteroids, comets, planets, and black holes to form together.

• only black holes to form.

• only asteroids and comets to form.

Planets in our solar system revolve around what?

• Earth

• The sun

• The moon

Our sun is a _____.

• planet

• galaxy

• star

About how many galaxies are there?

• millions

• billions

• hundreds

• thousands

What do scientists use to study the universe?

• microscope

• telescope

• macroscope