Scientists who proposed the Big Bang Theory were attempting to explain*

The red shift in light from stars located in very distant galaxies suggests that these stars are*

According to the Big Bang theory, which graph best represents the relationship between time and the size of the universe from the beginning of the universe to the present?

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Which information best supports the inference that the universe began with an explosion?*

A blue shift of the light from a star indicates that the star*

A red shift in the light from very distant galaxies suggests that the universe is*

The theory that the universe is expanding is supported by data from the*

Fourteen billion years represents the approximate age of*

According to astronomers, the age of the universe is estimated to be*

Light from distant galaxies most likely shows a*

The diagram below represents the light spectra given off by the same element as observed under two different conditions. Spectrum A was observed when that element was heated in a laboratory. Spectrum B shows the same element as seen in the light from a distant star.

The light spectrum observed from this distant star shows a*

Cosmic background radiation detected from all directions in space provides evidence for the*

What are two pieces of evidence that support the Big Bang Theory?*

Identify the name of the event that is inferred by scientists to have occurred when the universe first formed. [1]*

Describe the evidence shown by the light from these star clusters that indicates that these clusters are moving away from Earth. [1]*