Did you know?
Cutting Edge
Algae
Algae helps balance oxygen levels in water. However, some over-populate polluted areas, where they can unbalance the ecosystem.
Bacteria
Bacteria were the first living organisms on Earth. They have been here for 4 billion years and arrived before the dinosaurs.
Blood Cells
A few drops of blood contain 1 billion red blood cells. Their bright red colour comes from a protein chemical called haemoglobin.
DNA
DNA only contains 5 different elements: carbon, hydrogen, oxygen, nitrogen and phosphorous.
Flu Virus
The flu virus is able to mutate every year. This means scientists must try to be one step ahead to create an effective vaccine.
Human Cells
The nucleus of every human cell contains all the information needed for it to be able to reproduce. This means the cells do not need to be inside the body to grow.
Microscopic Organisms
Bacteria come in lots of shapes and sizes, but even the largest bacteria is only 10 micrometres long - that's just 10 millionths of a metre.
Pharmacology
Pharmacology is the study of drugs - their chemical make up and how they affect the human body.
Plasma Ball
When you touch a plasma ball, your fingers act as conductors through the glass, changing the magnetic field inside the ball.
Virus
Viruses are protected by a protein coat which ensures the genetic material inside the virus is not damaged before it enters a host cell.