-
The Big Bang
Over 13.7 billion years ago, a tiny tiny object, the size of a pinhead exploded with all the mass being cramped into it. This started to build up rapidly and creating a hot explosion. Evidence providing the truth of the big bang are: All the galaxies are moving away from us and the further a galaxy is, the faster it is moving away from us. "BBC - GCSE Bitesize: The Big Bang Theory". Bbc.co.uk. N.p., 2016. Web. 16 Nov. 2016. -
First Stars Are Born
The first stars in the universe were created a little later, it created an era of starlight which was powerful enough to strip electrons from the hydrogen atoms throughout the whole entire universe. Stars started the cosmological makeover. "BBC - GCSE Bitesize: The Big Bang Theory". Bbc.co.uk. N.p., 2016. Web. 16 Nov. 2016. -
First Galaxies Are Fromed
The first galaxies were formed after the end of the cosmic dark ages, creating galaxies a few years later after the big bang. The simplest statement for the making of galaxies is the Dark Matter cosmology. Clustering and merging is how galaxies got its mass. It determines their shape and structure. "BBC - GCSE Bitesize: The Big Bang Theory". Bbc.co.uk. N.p., 2016. Web. 16 Nov. 2016. -
Period: to
The Milky Way Galaxy Forms
The Milky way formed after the big bang happened. In order for this to happen the universe had to cool for a bit. Gas spread throughout the universe, heating up and larger clumps came into play. The stars started to gravitationally attract each other into larger groups. Some of the Milky Way stars dates back to the early stages of universe. Wethington, Nicholos and Nicholos Wethington. "How Did The Milky Way Form? - Universe Today". Universe Today. N.p., 2016. Web. 17 Nov. 2016. -
Period: to
The Solar System Forms – The Sun, Planets, Asteroids, Moons
Scientists believe the solar system was created when a cloud of gas and dust in space was triggered, by the explosion of a nearby star (supernova). The explosion did make waves in space which squeezed the cloud of gas and dust. "Solar System Formation: Gas & Dust To Solar Nebula To Sun With Planets - Windows To The Universe". Windows2universe.org. N.p., 2016. Web. 17 Nov. 2016. -
Period: to
First Single Celled Organisms
Bacteria and archaea were the first two organisms that existed within the first billion years. These organisms showed two of the three branches of the Tree of Life. The single celled organisms are in a group called prokaryotes. -
Period: to
First Multi-Celled Organisms
Organisms with one or more cells are classified as eukaryote organism, which is the Tree of Life. The first of these cells happened between 1.7 and 2.5 billion years ago, this is possible happened because of the increase of oxygen around 2.3 billion years ago. Since the oceans started extremely became oxygenated more and more organisms started to use oxygen. -
First animals with shells and hard parts
The first fossils that had a living shell animal was dated back about 520 million years ago. According to archaeologists the shell animals were bigger than thought. "Geologist Analyzes Earliest Shell-Covered Fossil Animals". The UCSB Current. N.p., 2016. Web. 16 Nov. 2016. -
First Vertebrates
The first vertebrate to walk the earth (to archaeologists) was an in the Devonian period and it was early cartilaginous fish, bony fish and also marked the first tetra pods, vertebrates with true legs that could walk on land. 30 million years after, several groups of land amphibians had appeared. "Fossil Record Of The Vertebrates". Ucmp.berkeley.edu. N.p., 2016. Web. 16 Nov. 2016. -
Life Still Confined To The Sea, Seaweed Is The Only Plant
Close to 600 million years ago, seaweed was the only living plant because of the limitation. Earth was too hot any living creature to live on. Life could only live in the sea due to temperature. "Seaweed". En.wikipedia.org. N.p., 2016. Web. 16 Nov. 2016. -
First Signs Of Land Plants And Animals
The temperature of the Earth's surface decreased making hospitable to life. Lichens were probably the first plant-like organisms. Lichen is a combination of algae and fungi. It was thought that Lichens made there way on to shore and in muddy wetlands to land. The first land animal to walk on earth was a four legged amphibian called Ichthyostega. Some fossils suggest tubular lived here. "Who Were The First Organisms To Live On Land?". Australian Popular Science. N.p., 2016. Web. 16 Nov. 2016. -
First Insects And Spiders
Fossils of insects dates back to about 400 millions years ago. The first insect was called Rhyniognatha Hirsti. Insects lived through the Devonian Period. Spiders have lived for almost 380 million years. One of the first spiders possibly evolved from a crab. There are about 45,000 species of spiders. "Google Answers: Evolution Of Insects And Spiders". Answers.google.com. N.p., 2016. Web. 16 Nov. 2016. -
Amphibians Dominant
Major groups of amphibians developed in the Devonian Period about 370 million years ago. It started off from lobe-finned fish to the modern coelacanth and lungfish. Lobe-finned fish had evolved multi-joined leg like fins. "Amphibian". En.wikipedia.org. N.p., 2016. Web. 16 Nov. 2016. -
Mammal-Like Reptiles Appear
Mammal like reptiles are called synapsids or pelycosaurs were more advanced mammal-like animals. Pelycosaurs evolved from basal amniotes and are one of the major groups for the amniotes. "The Mammal-Like Reptiles | The Institute For Creation Research". Icr.org. N.p., 2016. Web. 16 Nov. 2016. -
Dinosaurs Abundant, First Birds Appear
Fossils suggest that bird evolved from small carnivorous dinosaurs. The first specimen of bird was Archaeopteryx, which fossil was discovered in the early 1860's. The Archaeopteryx was between a bird and reptile. "The Origin Of Birds". Evolution.berkeley.edu. N.p., 2016. Web. 16 Nov. 2016. -
Dinosaurs Extinct, Increase In Diversity Of Mammals Of All Kinds
When the dinosaurs became instinct around 65 million years ago, mammals started to evolve and became more diverse and this led to a lot more new species of mammals, which therefore varied the fast population of mammals today. "Evolution: Library: The Rise Of Mammals". Pbs.org. N.p., 2016. Web. 16 Nov. 2016. -
11:50pm-Anatomically Modern Humans Appear
The first humans to appear were between 5 million and 7 million years ago which probably started out as an apelike creatures in Africa began to walk habitually on two legs. Some spread from Africa into Asia and also Europe two million years ago. Wilford, John. "When Humans Became Human". Nytimes.com. N.p., 2016. Web. 16 Nov. 2016. -
Red Shift
Scientists can use the red shift to decide how far away something is. It uses different factors to help determine the distance of one object to another. Such as with stars a scientist will check how hot it is or how much light it gives off. The Doppler Effect is when a siren is going by, it shows the sound of it moving closer to you the pitch of the noise is higher, and then when it is moving away the sound frequency is lower. -
Background Radiation
Background radiation or also known as cosmic microwave background,it is radiation that spreads throughout the universe and is able to be detected. It is invisible to the naked eye and a lot of tools have to be used to see them. Background radiation was created shortly after the Big Bang, and is the earliest radiation detected. -
Abundance of Elements
Helium and hydrogen are two of the main elements in the universe. Other elements include carbon and oxygen, which were produced later on. Stars are able to make elements in their lifetime and then contribute those elements to space when they die.
