Articles

Question 1

Dark matter

Answer 1

Adds mass to galaxy/ shapes them

Interacts gravitationally not electromagnetically which means it’s only seen through its gravitational affect on other matter

Question 2

Antimatter

Answer 2

Antimatter reacts with regular matter by destroying each other positron meets electron equals annihilation

Antimatter is produced by lightning and cosmic rays antimatter is created by many types of radioactive decay

Question 3

Dark energy

Answer 3

Dark energy pushes matter of parts as dark matter brings matter together and dark energy drives cosmic expansion

Question 4

Red shift

Answer 4

As an object moves away light waves are stretched - like the Doppler effect where it’s a lower pitch as the sound moves relevant to the observer, like when object moves away when the wave length becomes redder

Red shift proves the universe is accelerating its expansion