Intro to the Universe

Front

What is the largest celestial body in our Solar System?

Back

The Sun is the largest celestial body in our Solar System.

Front

What is the closest star to Earth outside our Solar System?

Back

Proxima Centauri is the closest star to Earth outside our Solar System.

Front

How far is Proxima Centauri from Earth in light-years?

Back

Proxima Centauri is approximately 4.3 light-years away from Earth.

Front

What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 299,792 kilometers per second (or about 186,282 miles per second).

Front

True or False: The Sun is classified as a star.

Back

True.

Front

How many stars are there in our Solar System?

Back

There is only 1 star in our Solar System, which is the Sun.

Front

What is the name of our Sun?

Back

The name of our Sun is Sol.

Front

What are planets?

Back

Planets are celestial bodies that orbit a star, are spherical in shape, and have cleared their orbital path of other debris.

Tags

NGSS.MS-ESS1-3

Front

Name the four terrestrial planets in our Solar System.

Back

The four terrestrial planets are Mercury, Venus, Earth, and Mars.

Front

What are gas giants?

Back

Gas giants are large planets that are primarily composed of hydrogen and helium, with no well-defined solid surface. Examples include Jupiter and Saturn.