Universe unit review

Front

What are the primary elements that most stars are made of?

Back

Hydrogen and Helium.

Front

What type of tide occurs when the Earth, Moon, and Sun are at right angles to each other?

Back

Neap tide.

Front

What is an object that orbits another object in space called?

Back

Satellite.

Front

What happens to the wavelengths of energy when they are moving away from a source?

Back

The waves stretch out and get longer.

Front

What does the yellow color of the sun indicate about its temperature?

Back

It is a mid-range temperature star.

Front

What is the term for the gravitational pull that the Moon exerts on the Earth?

Back

Tidal force.

Front

What is the main reason for the seasons on Earth?

Back

The tilt of the Earth's axis.

Front

What is a galaxy?

Back

A massive system of stars, stellar remnants, interstellar gas, dust, and dark matter.

Front

What is the difference between a comet and an asteroid?

Back

Comets are icy bodies that release gas or dust; asteroids are rocky bodies.

Front

What is the Big Bang Theory?

Back

The leading explanation for the origin of the universe, stating it began from a singular point.