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Definition of outer space?
the universe beyond Earth's atmosphere and between planets.
Definition of mass?
a measure of how much matter is in an object.
Definition of weight?
a measure of how the force of gravity acts upon that mass.
a collection of a sun, planets, comets, asteroids, metors, and space debris.
What is a galaxy?
a large group of stars, gas and dust that are bound together by gravity.
Does the sun orbit the earth? or does the earth orbit the sun?
The earth orbits the sun.
A planet spins/rotates around its centre. What is another name for this centre point?
Axis
What is the smallest terrestrial planet in the solar system? It is about one third in size to earth?
Mercury
Which planet is roughly the same size as Earth?
Venus
What planet is known as the red planet?
Mars
Which planet is made from ice, gases and liquid metal?
Uranus
Which planet is the furtherst away from the sun?
Neptune
Which planet is the biggest that it can sometimes be seen from earth without a telescope?
Jupiter
Definition of a satelite?
something that orbits around a planet or star.
Give 4 reasons for what satellites are used for?
tv signals, phone calls, mapping/GPS systems, weather.
Name the three main areas of the sun?
convective zone
radiative zone
core
definition of an asteroid?
a small rocky object that orbits the sun.
Defitiniton of a comet?
a ball of frozen gas and dust that orbits around the sun.
A meteor that makes contact with land is called?
meteorite
Name a natural object in space?
planet, comet, meteor, etc.
Name 3 man made objecs in space?
rocket, International Space Station, satelites etc.
The part of the Earth that is closer to the sun will always be ______________?
warmer
What was the Chelyabinsk Meteor?
A meteor that struck Russia in 2013. It was about the size of a 6 story building. The impact was larger than a nuclear explosion. More than 1200 people were injured.
The first astronauts moved to the space station in the year?
2000
Two types of planets are gas and terrestrial. What are both types of planets made from? And what is the term that gas planets are typically called?
terrestrial - made out of mostly metal and rock
gas- made from gases called "gas giants"