Moon Phases
How many Moon phases are there?
8
Exerts such a strong gravitational pull that no light escapes
Black Hole
Small rocky bodies that move through space
Comets
The universe started out as the size of a _____
Single atom
All electromagnetic waves have different ______
wavelengths
Means that the Moon is getting smaller
Waning
The earliest stage of a star’s life
Protostar
A meteor that reaches Earth’s surface
Meteorite
One of the main pieces of evidence for the Big Bang
Universal expansion
The first man to walk on the Moon?
Neil Armstrong
Means that the Moon is getting bigger.
Waxing
Large cloud of gas or dust in space
Nebula
The gas cloud that surrounds the nucleus of a comet
Coma
The universe began _______ years ago.
13.7 Billion
The two types of telescopes
optical and radio
When the left side of the Moon is lit
1st Quarter
The remains of a high mass star
Neutron star
Three Types of Meteorites
Stony, Metallic, and Stony Metallic
Did an explosion happen?
No, It was only expansion
How is radiation transmitted?
Through electromagnetic waves
When the Moon is fully lit
Full Moon
What a medium-mass star becomes at the end of its life
Black dwarf
A comet's ion tail always points away from ______
The Sun
The Universe is composed of __% hydrogen
75%
Which telescopes make magnified images of objects?
Optical telescopes