Matteer
Define matter
It is anything that takes up space and has mass
It is the chemical formula of water
H2O
It is the study of space - planets, moon, stars and other heavenly bodies
Astronomy
It is the galaxy where eart, the sun and our solar system belongs to
Milky Way Galaxy
It is the closest star to earth
Sun
It is created when an object is opaque
Shadow
It is the element with only 1 proton
Hydrogen
Describe space
It is like a vacuum
No air friction
Extreme temperatures
It is the floating gas and dust in space
Nebulae
It is the color of the hottest star
Blue
Explain why water is known as the universal solvent
It can dissolve many substances
Define atom
It is a small particle that makes up matter
Explain why space is like a vacuum.
Nothing in it
Name the three types of galaxies
Spiral, elliptical and irregular
It is a cosmic catastrophe - a violent explosion
Supernova
Give an example of physical change and chemical change
Physical change - cutting paper
Chemical change - burning paper
It makes up the nucleus of an atom
Protons and neutrons
What does an astronomer do?
Study space - planets, sun, moon, stars and other heavenly bodies
How are galaxies categorized?
According to shape
It is the distance of the sun to the earth
93 million miles
Name the states of matter and give an example for each
Solid - table, chair
Liquid - water, oil
Gas - oxygen, carbon dioxide
Proton - positive
Electron - negative
Neutron - no charge
Explain the importance of wearing a spacesuit
It provides oxygen and protects from the harmful rays of the sun
Define galaxy and name other galaxies aside from Milky Way
It consists of millions and billions of stars
Andromeda galaxy, LMC, SMC
What is magnitude in astronomy?
Brightness of stars