Astronomy Vocabulary and Concepts

Front

Vocabulary: Star

Back

A star is a huge ball of very hot gases in space.

Front

Vocabulary: Universe

Back

The universe is all of space and everything in it including stars, planets, galaxies, etc.

Front

Sun's corona

Back

The corona is a hot gas area extending about 1 million km from the sun's surface.

Front

Constellations

Back

Constellations are patterns of stars named after religious or mythical objects or animals.

Front

Main idea and details

Back

Two ways scientists classify stars are by color and brightness.

Front

Distance of Venus from the sun

Back

108,000,000 km (about 67,000,000 mi)

Front

Effect of a planet's diameter on gravity

Back

The greater the diameter, the stronger the gravity

Front

Venus's weight comparison

Back

Slightly lighter than Earth

Front

Diagrams not to scale

Back

What is the note about the diagrams?

Front

Our solar system includes how many planets?

Back

Eight planets