Compared to human experience, the Universe has been around a long time, nearly ___

• 14 thousand years

• 14 million years

• 14 billion years

• 14 trillion years

Tags

NGSS.HS-ESS1-2

The notation used for numbers that are really big is called ___

• binary

• hexadecimal

• scientific notation

• standard notation

Scientific notation is a shorthand way of expressing numbers using powers of ___

• 2

• 8

• 10

• 16

With scientific notation, every time the exponent goes up by one the actual number is ___

• twice as big

• 10 times bigger

• 100 times bigger

• 1000 times bigger

A million is 10 to the sixth, a billion is 10 to the ___

• third

• seventh

• eighth

• ninth

10¹⁸ isn't twice as big as 10⁹, it's ___

• nine times bigger

• eighteen times bigger

• a million times bigger

• a billion times bigger

Astronomers Fred Adams and Greg Laughlin wrote about very long time scales in their book, ___

• The Three Stages of Space-Time

• The Five Ages of the Universe

• The Seven Eons of Time

• The Nine Eras of the Cosmos

Tags

NGSS.HS-ESS1-2

The first epic of the Universe, covering from the Big Bang up until the formation of stars, is called ___

• the Big Bang Epoch

• the First Stage

• The Black Aeon

• the Primordial Era

Tags

NGSS.HS-ESS1-2

The current era, where stars are the dominant objects, is called ___

• the Age of Light

• the Luminous Stage

• the Stelliferous Era

• the Planetary Age

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-2

NGSS.HS-ESS1-3

How long can the lowest mass red dwarf fuse hydrogen into helium?

• about a thousand years

• about a million years

• about a billion years

• about a trillion years

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3