The Moon, The Sun, and Stars

What is a star?

A star is a ball of gas made mostly out of helium and hydrogen. The nearest star to the Earth is the sun. The sun can be up to 10,000 degrees. Astronauts cannot touch the sun, but they have figured out many facts about it. NASA is one of the most well known space researchers.

Facts about the sun:

1. The element helium got its name from the sun.

2. The sun is a ball of gas so it has no solid surface.

3. The sun's light reaches the Earth in under eight minutes.

4. Over 1 million Earths could fit in the sun.

5. The sun is the most important source of energy for the Earth.

Facts about stars:

1. The smaller stars are, the longer they live.

2. Most stars come in multiples.

3. Stars are made of mostly hydrogen and helium.

4. When stars explode, it is called a supernova.

5. It is very rare to see a supernova.

Facts about the moon:

1. Our days would be 6-8 hours long without the moon.

2. The moon is made mostly out of oxygen.

3. Moon dust smells like gunpowder.

4. The moon is a lot smaller than the sun.

5. The moon is technically a satellite.

Multiple Select

Which of these are true?

• A star is made only out of hydrogen.

• The sun does not have a solid surface.

• The moon is a satellite.

• The element hydrogen got its name from the sun.