Space

As part of the Big Bang Theory of the formation of the universe, scientists believe that over time, the universe is continually changing in what characteristic?

• From more dense to less dense

• From rotating to stationary

• From cooler to hotter

• From very large to very small

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NGSS.HS-ESS1-2

All the stars we observe from Earth emit light that is shifted, to varying degrees, to longer wavelengths. This evidence is used to support the Big Bang Theory because it shows that stars we observe -

• are all older than our Sun.

• are made up of helium gas.

• use nuclear fusion to make light.

• are moving away from us.

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NGSS.HS-ESS1-2

The Big Bang Theory suggests that our universe formed as the result of a huge explosion that sent all existing matter flying outward from a single point. The Big Bang Theory is supported by which of these observations?

• All matter in the universe is composed of the same atoms.

• All galaxies appear to be moving away from all other galaxies.

• All stars in the universe are approximately the same age.

• The universe is relatively the same temperature in all locations.

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NGSS.HS-ESS1-2

The theory of the origin of the universe that is most popular among space scientists suggests that our universe originated how long ago?

• 10 – 20 centuries ago

• 10 – 20 thousand years ago

• 10 – 20 million years ago

• 10 – 20 billion years ago

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NGSS.HS-ESS1-2

First Scientist to to present observational evidence that supported that the universe is expanding. (aka... red shift)

• Edwin Hubble

• Albert Einstein

• George Gamow

• Georges Lemaitre

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NGSS.HS-ESS1-2

What were the original two elements in our universe?

• Hydrogen and Lithium

• Helium and Oxygen

• Helium and Hydrogen

• None of the above

Space and all the matter & energy in it

• Space

• Universe

• Earth

• Milky Way

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The theory that provide support of the big bang theory

• red shift

• blue shift

• red expansion

• theory of life

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NGSS.HS-ESS1-2

What is the big bang theory?

• A theory that states that the universe started in a large mass and then imploded to form everything.

• A theory that states that the universe was there, will be and is there. Is homogeneous and isotropic.

• A theory that states that the universe is slowly coming back to a center.

• A theory that states that the universe started in a small mass and then expanded, the expansion cooled down the temperature and that resulted in the formation of matter, energy, space and time.

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NGSS.HS-ESS1-2

At 10,000 degrees Celsius, hydrogen begins to change into helium and energy is released in a process called nuclerar fusion, this process occurs in: ______

• Planets. This is the reason planets reflect the sun´s light.

• Stars. That´s one of the reason stars have their own light.

• Earth´s core. This is the reason the core is melting the mantle.

• Stars. This is the reason stars are balls of fire.

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