Space 1 Vocabulary

Scientists classify stars by temperature and brightness on a ________.

• spectroscope

• H-R diagram

• electromagnetic spectrum

• Astronomical Unit

This process causes atoms to combine, giving off huge amounts of heat and light energy. This is how a star is born and it gives the star fuel throughout its life.

• nuclear fusion

• electromagnetism

• supernova

• spectroscopy

This is made up of all the different kinds of light, even the kinds we cannot see.

• Electromagnetic spectrum

• Radio waves

• Visible light

• Hertzsprung-Russell diagram

The _______ is made up of all of outer space and the matter and objects within it.

• galaxy

• universe

• solar system

• constellation

A __________ contains billions of stars and can be classified based on its shape.

• galaxy

• universe

• solar system

• planet

This is a giant burning ball of gases that gives off light.

• star

• planet

• universe

• galaxy

A star is born in this cloud-like object.

• nebula

• galaxy

• universe

• gravity

Objects with mass are pulled together by this force.

• gravity

• energy

• fusion

• magnetism

What is the light that humans can see?

• visible light

• radio waves

• gamma rays

• ultraviolet light

What is the name of our galaxy?

• Milky Way

• Andromeda

• Sombrero

• Black Eye