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16 Cards in this Set

  • Front
  • Back

A solar eclipse occurs when the ______ blocks the ______ light.

Moon, sun's

A star is a gigantic ball of very _____ that give off ______.

Hot gases, electromagnetic radiation

Red stars are the _____.


White or blue white stars are the ______.

Coolest, hottest



Give 4 characteristics of our Sun.

1. A medium-sized star


2. It's energy comes from the fusion of hydrogen and helium atoms.


3. Gives off thermal and light energy


4. Closest star to Earth

The _________stars are the stars that give off the most energy.

Brightest

The distance light travels in one year

Light year

Part of the Sun that gives off the light energy we see

Photosphere

Part of the photosphere, looks dark because they are cooler than the rest of the photosphere

Sunspots

A star is born in a fiery cloud of ____ and _____ called ______ and dies when it runs out of _____ (______).

Gas, dust, nebula, fuel, hydrogen

Gigantic explosion that occurs at the end of life in some stars.

Supernova

Point in space that has such a strong force of gravity that nothing within a certain distance of it can escape getting pulled into it.

Black hole

Our solar system is part of a _____ galaxy called the ______.

Spiral, Milky Way

Huge system of stars,dust, and gas held together by gravity.

Galaxy

All galaxies constantly move through ______.

Space

Name and describe the 3 types of galaxies.

Spiral-looks like a pinwheel, bright in the middle with wispy arms spreading out from the center.


Irregular-no real shape.


Elliptical-almost round or oval. Like a football.



A group of stars that forms a pattern, appear to move across the sky because Earth rotates.

Constellation.