9th - 12th grade
Played 65 times
"Nebula" is Latin for ___
What are nebulae?
Stars, like our Sun, form from nebulae. How long ago did our Sun form?
A cloud of gas that has been excited by light from a nearby star is called ___
In an emission nebula, what is the predominant color of the glow from hydrogen?
In an emission nebula, what is the predominant color of the glow from oxygen?
Compared to a typical nebula, how much more dense is the air we breathe?
Dust clouds that reflect the light of nearby bright massive stars are called ___
Reflection nebulae are composed mainly of ___
When astronomers talk about dust, they mean tiny grains with a width of about ___
"Polycyclic aromatic hydrocarbons" are better known as ___
When visible light hits interstellar dust, what happens to blue and red light?
The dust surrounding the Pleiades star cluster is a ___
Small dust clouds that look like "fuzzy red-edged holes in space" are sometimes called ___
The Orion Nebula is lit by four stars located in its heart, collectively called ___
A flattened disk of dense gas and dust surrounding a young newly forming star is called ___
When viewed in the infrared, what is revealed at the center of protoplanetary disks?
Newly formed stars emit UV light that erodes the surrounding nebula in a process called ___
Three giant towers of gas and dust in the Eagle Nebula have been called ___
The dark nebula in the constellation Orion that is shaped like a gigantic chess piece is called ___
Clouds of dust that look dark to the human eye are actually glowing if you observe them in ___