The Universe
True or False: Stars don't produce heat and light.
False: Stars do produce heat and light.
What are dwarf planets?
Small planets
___________ is the planet we live on.
The Earth
_____________ is Earth's only satellite.
The Moon
True or False: The universe appeared 16 000 billion years ago as a result of The Big Bang.
False: The Big Bang happened 15 000 million years ago.
Galaxies are groups of ____________ and ___________.
Nebulas and stars
The Earth ___________, or spins, on it's axis.
Rotates
What are the four moon phases?
Full moon, new moon, waxing moon, and waning moon
The universe is where celestial bodies such as _____________ and ______________ are.
Stars and planets
Which galaxy is our solar system a part of?
The Milky Way
What is the thin outer layer of the Earth called?
Crust
What are three consequences of light pollution?
Energy waste, the altering of biological cycles, and an inability to see the night skies
What are satellites?
Celestial bodies that orbit a planet
What component of the universe will form stars?
Nebulas
What movement produces the different seasons on Earth?
The Earths orbit around the sun
______________ is caused by artificial lighting, it causes brightness in the night sky, altering the natural darkness. This makes it harder to see the night skies.
Light Pollution
When asteroids hit a planet they become _____________. When they vanish into the atmosphere they are called _____________.
Meteorites and shooting stars
Name four planets in our solar system.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
How long does the Earth take to complete its orbit?
365 days and 6 hours
How long does the moon take to complete its rotation?
29 and a half days