Celestial Objects
What is a celestial object?
A natural object that exists outside of Earths atmosphere
What do all our planets orbit around?
The sun
What is the biggest star?
The Sun
What is Gravity and what is a gravitational pull?
Force of attraction that pulls together all matter. Gravitational pull is the force that pulls everything towards the surface of a planet
What is a comet and what is it made of?
A celestial body that orbits around the sun made of dust, ice and small rocks.
What does emitting light mean? Give 2 examples of objects that omit light
Anything that produces its own light.
Ex.Sun and Stars
What does a revolution or orbit mean?
A repeated pathway of a celestial object in space.
What is a constellation?
A group of visible stars from Earth that is often in a pattern or shape
What is matter?
Anything that takes up space
What is the difference between a meteor and a meteorite?
Meteor - An asteroid or other object that burns or vaporizes when it enters Earth's atmosphere
Meteorite - A small piece of a meteor that survives entering through Earths atmosphere
What is a light reflector? Give 2 examples
Objects that reflect light from the sun in order to be seen from Earth.
Ex. Venus, Mars, Jupiter and Saturn
Name the 8 planets?
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
What is a star?
Balls of hot gas that emit their own light and energy
What is the difference between Mass and Weight?
Weight - the measurement of the force of gravity on an object
What is an asteroid and what are the three types?
Asteroids: a ball of metal and rock that ordbit around the sun
1. Carbon asteroids
2. Stony asteroids
3. Metallic asteroids
What is a universe?
Everything we can feel, sense measure and detect
Name 2 terrestrial planets and 2 gaseous planet.
Terrestrial - Earth, Mercury, Venus, Mars
Gaseous - Neptune, Uranus, Saturn, Jupiter
Name 3 examples of the major constellations
Big Dipper - Ursa Major
Little Dipper - Ursa Minor
Orion
Taurus
Gemini
What is a telescope?
A tool that allows scientists to explore far away objects by detecting heat and radio waves they emit
What is the most famous comet and why is it famous?
Halley's Comet - it is famous because it confirmed that comets orbit around the sun
What is a galaxy? Which one is the Earth located in?
A system of stars, gas and dust that is brought together by gravity. We live in the Milky Way.
What makes up our solar system?
- Sun and moons
- Stars
- 8 Planets including dwarf planets
- Comets and asteroids and meteors
- Rocks and Ice
How do constellations move through the sky?
They don't! They only appear to be moving because our planet is rotating
What is a satellite? What are they used for (3 examples)
A satellite is an object that orbits around the Earth.
It can track environmental issues, predict weather and climate, and provide navigation.
Where are most asteroids found? Which two planets is this located?
The asteroid belt! It is located between Mars and Jupiter