Definitions
What is the Sun?
The star that is at the centre of our solar system and provides us with sunlight and heat.
What is the Flat Earth Theory?
The theory that the Earth is flat instead of being a spherical shape.
What Galaxy do we live in?
The Milky Way Galaxy
How many moons does Earth have?
1
How many planets are in our Solar System?
8 Planets
What is a planet?
A celestial body moving in an elliptical orbit around a star.
What is the Earth Centred Theory?
The theory that the Earth is the centre of the Universe.
How many stars are in our solar system?
1
True or False: The solar system includes 8 planets.
True
How old is our Solar System?
a) 2000 years old
b) 4.6 billion years old
c) 100 years old
b) 4.6 billion years old
What is the Solar System?
The collection of eight planets and their moons in orbit around the sun, together with smaller bodies in the form of asteroids, meteoroids, and comets.
What is the Sun Centered Theory?
The theory that the Sun is at the Centre of our Solar System.
Do we know exactly how many stars, planets, and moons are in the Universe?
No!
Is the Sun the largest body in our Solar System?
Yes
True or False:
All the planets orbit the Sun every 365 days
False. Only Earth orbits the Sun every 365 days.
What is the Universe?
All matter and space as a whole. All of the galaxies, solar systems, planets and other celestial bodies belong to the universe.
What theory do we believe today:
The Flat Earth Theory
The Earth-Centred Theory
The Sun-Centred Theory
The Sun-Centres Theory
What is a Celestial Body?
A celestial body is an object in space. Celestial bodies include stars, planets, natural satellites (moons), comets, asteroids, galaxies, and meteors or meteorites.
How is the Sun important to life on Earth?
The Sun is important to life on Earth as it provides us with warmth and light. It is the engine that powers the solar system.
How many days does it take for Earth to orbit the Sun?
Hint: think about how many days are in 1 year
365 days
What are Celestial Bodies?
These are objects that are in space, like stars, planets, moons, asteroids, and galaxies. They're the things we can see when we look up at the sky at night!
True or False:
Flat Earth supporters are worried people will fall off the side of the earth
False. They believed there was a wall of ice at the end of the world that would prevent them from falling.
Which is bigger: The Universe or a Galaxy?
The Universe
What is a dwarf planet?
Dwarf planets are like regular planets but smaller, and they haven’t cleared their orbit of other debris.
Pluto and Eris are examples.
What is an orbit?
An orbit is a regular, repeating path that one object takes around another.
Therefore, all the planets orbit the Sun, as they all travel in a circle around the Sun.