Universe

Sun's numerous bright markings surrounded by darker areas.

The outermost layer of the sun is called the ______________.

The Sun can exist in its present state for how much longer?

Which item is the largest?

Photons can exert ____________ on matter, which suggests that they are particles.

According to the Big Bang Theory, how old is the universe?

Gamma rays, X-rays, visible light and radio waves are all types of ...

According to the electromagnetic spectrum, as light's wavelength gets shorter, what happens to the frequency?

The layer of the sun that gives Earth the most light.

Light energy can act like a wave or a particle called a _____.

Sunpots appear dark because they are ....

Red shift of distant galaxies is evidence of ________.

The name of our galaxy is...

Evidence of an expanding universe

The speed of light is approximately ...

In the equation E=mc² , what does the c stand for?

The faster a galaxy is moving away from us, the further away it is.

1 AU is equal to ...

One light year is equal to approximately which distance?

What unit of measurement do we usually use when referring to anything beyond our solar system?

Doppler effect can determine a star's ____________________.

Which is one of the supporting pieces of evidence for the Big Bang Theory?

Auroras are caused by ...

The Sun's energy comes from _________________.

What solar process can create auroras here on Earth?

Which object is the largest?