10SCI - Cosmology, the universe and the Big Bang Theory

The ________________________ is all the matter, energy, time and space) that exists. Made up of galaxies which contain stars and planetary systems

A large group (billions) of stars, gas, and dust held together by gravity

• Solar System

• Milky Way

• Galaxy

• Universe

A _____________________ includes a star and all the material that orbits it, including its planets and moons

A large, spherical, non-luminous celestial body which orbits a star, may be rocky, icy, or gaseous in composition.

• Satellite

• Planet

• Asteroid

• Comet

The scientific theory describing the origin of all space, time, matter, and energy approximately 13.7 billion years ago from the expansion of a singular point of extremely high density and temperature (singularity) is called ______________________________________________

Where the wavelength of the light is stretched, so the light is seen as ‘shifted’ towards the red part of the spectrum

• Red - Shift

• Cosmic Microwave Background Radiation

The remnant heat (electromagnetic radiation) left over from the Big Bang

• Red - Shift

• Cosmic Microwave Background Radiation

The four planets closest to the sun with solid (hard) surfaces that are made up of rocks and metals​ (a)  

• terrestrial planets
• gas giants

A relatively small celestial body made of ice and frozen rock and gas that revolves in an orbit around the sun​ (a)  

• Comet
• Asteroid

The galaxy in which our solar system is located is the ____________________________