Human Body
Tiny blood clotting cells
Platelets
Supercontinent that existed 300 million years ago
Pangea
Opening controlling light into the eye
Pupil
Closest star after the Sun
Proxima
Study of heredity
Genetics
Pigment giving skin its colour
Melanin
Hardest natural mineral
Diamond
Functional unit of the kidney
Nephron
Brightest planet in the night sky
Venus
Study of stars
Astronomy
Largest bone in the body
Femur
Largest Ocean
Pacific
Scientist who discovered penicillin
Fleming
First artificial satellite
Sputnik
Study of fossils
Palaentology
Organ that produces insulin
Pancreas
Scale used to compare earthquake magnitudes
Richter
Oxygen-carrying protein in blood
Haemoglobin
Region around a black hole beyond escape
Event Horizon
Study of cells
Cytology
Largest organ in human body
Skin
Layer on which tectonic plates move
Asthenosphere
Largest artery
Aorta
Largest volcano in the Solar System
Olympus
Study of weather
Meteorology