L7 - Theories of the Big Bang F

Alternative theories of the Big Bang

​LI: We are learning about different theories of the origin of the Universe


SC: What are the different theories of the origin of the Universe and why are some more accepted than others?

The Big Bang Theory

The Universe did NOT always exist

The Universe formed from a point of energy (singularity)

Energy converted to matter durng expansion

It created space and time

The universe is expanding

The Universe is approx 13.7 billion years old

Multiple Choice

The Big Bang Theory states the Universe

• 1. 1. started from a single point of energy

  2. 2. still expanding

• 1. 1. started from multiple points of energy

  2. 2. still expanding

• 1. 1. cannot be expanding

  2. 2. has always existed

The Big Bang theory states the Universe started from a point of singularity and is still expanding

Draw

Draw a diagram of the Big Bang Theory

Steady State Theory

The Universe ALWAYS existed

The Universe is expanding

Matter is being created to fill the space as the universe expands

Open Ended

What is different between the Big Bang and the Steady State theory?

Hint: think of the very start of the Universe.

Draw

Draw a diagram of the Steady State theory

Oscillating Theory

The Universe will cycle between expanding and contracting (collapse)

The Universe oscillates (cycles) between the Big Bang and the Big Crunch

Open Ended

How does the Oscillating theory differ from the Big Bang theory?

Draw

Draw a diagram of the Oscillating theory