Question

f. a scientific theory is an explanation of some part of the natural world that is supported with a variety of facts and evidence that have been repeatedly confirmed through experiments and observations. 1. compare: how is a theory different than a guess? <type here> 2. analyze: how does the big bang theory fit this description? <type here>

Explanation:

1. A guess is an unsubstantiated idea, while a theory is supported by facts from experiments and observations. It is based on evidence - gathering and testing, not just speculation.
2. The Big - Bang theory is supported by various astronomical observations like the cosmic microwave background radiation, the abundance of light elements, and the large - scale structure of the universe. These facts and evidence have been repeatedly confirmed through scientific research, fitting the description of a scientific theory.

Answer:

1. A guess is unsubstantiated; a theory is evidence - based.
2. Supported by astronomical observations and research evidence.