The Universe Unit Test

Question

11 of 1311 of 13 Items

Question
In three to five sentences, briefly describe how the big bang theory explains the origin and evolution of the universe.(4 points)

Short Answer Rubric (4 points)
Points Awarded Criteria
4
The answer is very clear.

The answer is fully supported by details.

There may be a few errors in grammar, usage, or mechanics. Errors do not interfere with meaning.

3
The answer is mostly clear.

The answer is supported by mostly relevant details.

There are a few errors in grammar, usage, or mechanics. Errors do not interfere with meaning.

2
The answer is somewhat clear.

Details are weak or not related.

There are some errors in grammar, usage, and mechanics. Errors interfere with meaning.

1
The answer is not clear.

There are few or no supporting details.

There are many errors in grammar, usage, and mechanics. Errors interfere with meaning.

0 The question is not answered.

Answer 1

The big bang theory explains that the universe originated from a singularity, a point of infinite density and temperature, around 13.8 billion years ago. The universe then underwent rapid expansion, known as inflation, and continues to expand to this day. Over time, matter and energy cooled and formed galaxies, stars, and planets. This theory is supported by evidence such as the observed redshift of distant galaxies, the cosmic microwave background radiation, and the abundance of light elements in the universe.