Science facts you may not know

Playing video games is good for you. They reduce stress, increase coordination and multi-tasking skills, boost memory and can help those with dyslexia 

Coffee is the most widely used recreational drug and one of the most addictive 

At least half of the Earth's oxygen comes from the ocean, not trees

Tears actually contain a hormone that's a natural painkiller. So tears are just a way for your body to comfort itself when it feels pain 

Hot and cold water sound different when being poured because temperature changes viscosity 

The smell grass gives off when it's cut is a distress signal 

Velociraptors were only about the size of a turkey 

Honey, when sealed, is edible for thousands of years