How many years ago did the Big Bang occur?

• 13.7 million years ago

• 13.7 billion years ago

• 17.3 million years ago

• 17.3 billion years ago

Tags

NGSS.HS-ESS1-2

The single, super-concentrated point or bubble which later became the Universe before the Big Bang

• primeval particle

• cosmic atom

• primeval pinhead

• cosmic egg

Tags

NGSS.HS-ESS1-2

The first atom formed in the universe

• hydrogen

• helium

• iron

• plutonium

One of the possible scenarios for the ultimate fate of the universe

• Big Rip

• Big Loop

• Big Crunch

• Big Bounce

As the Universe expands into one hundred billion kilometers, the temperature in the universe increases.

• TRUE

• FALSE

Tags

NGSS.HS-ESS1-2

How many elements are found in the periodic table?

• 112

• 117

• 118

• 120

The formation of hydrogen and helium nuclei

• Nucleosynthesis

• Cosmic ray spallation

• Nuclear fusion

• Supernova

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

NGSS.HS-PS1-8

The production of large amount of energy in the core of a star

• Nucleosynthesis

• Cosmic ray spallation

• Nuclear fusion

• Supernova

Tags

NGSS.HS-ESS1-1

The last element formed inside the core of a star

• plutonium

• iron

• helium

• carbon

Heavier elements than iron are formed during _____.

• Nucleosynthesis

• Cosmic ray spallation

• Nuclear fusion

• Supernova

Tags

NGSS.HS-ESS1-3