origins of our solar system

Plus de détails

grade 9 science

par reuben piatigorsky-roth

Aristotle

par Abigail Bosley

THE GENERATIONS OF COMPUTERS

par Maria Alejandra

Big Bang

par Dalia El Serafy

our origins

expanding universe

big crunch

Hubble's discoveries

red shifted galaxies

big bang

hydrogen and helium predominance

backgroudn radiation

14 billions years ago

life on earht

darwin's theory

evolution

luca

habitable planet earth

magnetic field

appearance of water

desent from stars

formation of sun

life cycle os stars

manufacturing of elements

fusion