My fierce padlet by Maria Plancarte

5 BYA

plancartemaria7431 — 2023-12-13 19:06:31 UTC

The death of an earlier star expelled remnants into space, the remnants were then drawn in by gravity and created our star known as the sun. Some of the remnants were too heavy to form our sun. They combined to form inner rocky planets which were held in an orbit around the sun.

4.6 BYA

plancartemaria7431 — 2023-12-13 19:12:37 UTC

Earth was very hot in its early stages as it was being formed. Chemical compounds begin to form and separate by properties. Elements became abundant.

4.4 BYA

plancartemaria7431 — 2023-12-13 19:14:55 UTC

First and oldest of the four known geologic eons. During this time the solar system was forming within a large cloud of gas and dust around the sun which is known as an acceleration disc. The Earth was characterized by a partially molten surface, astroid impacts and volcanism.

4.2 BYA

plancartemaria7431 — 2023-12-13 19:16:50 UTC

The Earth was gradually cooling. The first oceans started to develop as water vapor was condensing.

4 BYA

plancartemaria7431 — 2023-12-13 19:16:55 UTC

Earth cools. Earth forms a crust and the sun shrunk and cooled from its original state. The habitable zone moves closer to earth. Water can exists in all three states during this time.

3.8 BYA

plancartemaria7431 — 2023-12-13 19:16:59 UTC

Atmosphere forms. Volcanoes form as Earth's crust takes shape. Volcanic gases cascading make up the first atmosphere and clouds start to form. Rain is what filled our oceans for as many as 1 million years. Primitive crust forms.

3.4 BYA

plancartemaria7431 — 2023-12-13 19:17:08 UTC

Cynobacteria appears during this time and is among the oldest forms of life on Earth.

3.2 BYA

plancartemaria7431 — 2023-12-13 19:17:11 UTC

Earth was likely covered completely in water. During the Paleoarchean period

3 BYA

plancartemaria7431 — 2023-12-17 18:50:05 UTC

The first form of life appears. Extremophiles and algae appear from primordial pools of life. Elements like carbon, hydrogen, and nitrogen combine forming amino acids.

2.8 BYA

plancartemaria7431 — 2023-12-17 18:50:17 UTC

Earth was in the middle of the Archaen Eon. Emergence of single celled organisms.

2.4

plancartemaria7431 — 2023-12-17 18:50:48 UTC

Oxygen began to accumulate in the Earths atmosphere. Photosynthetic organisms like cyanobacteria attributed to this. Known as the Great Oxygen Event.

2 BYA

plancartemaria7431 — 2023-12-17 18:51:08 UTC

Multicellular organisms. An abundant amount of photosynthesizing organisms appear during this time. Algae and plankton work to change CO2 in the atmosphere into 02. This changes the composition of the oceans and the atmosphere.

600 MYA

plancartemaria7431 — 2023-12-17 18:54:38 UTC

Ozone layer forms. The layer forming plays a crucial role in protecting life on earth by absorbing the majority of the suns UV radiation. First invertebrates appear 30 MY after

400-370 MYA

plancartemaria7431 — 2023-12-18 01:19:03 UTC

Plant life becomes abundant. The first appearance of insects happens around this time.Forms a successful and abundant group of life.370 MYA amphibians Amphibians emerge.

360-300 MYA Late Silurian Period

plancartemaria7431 — 2023-12-18 01:21:28 UTC

360 MYA the first appearance of land animals occurred. The continent Pangaea was formed. Oceans dry up as competition in ocean life becomes abundant. Aquatic animals had to adapt to new environments forming limbs to move around.

200 BYA

plancartemaria7431 — 2023-12-18 01:23:21 UTC

Reptiles become dominant. The sources of food cause reptiles to evolve and become dominant. Birds and dinosaurs evolve around 150 MYA

80 MYA

plancartemaria7431 — 2023-12-18 01:25:46 UTC

Dinosaurs go extinct. Super continent Pangaea starts to separate. Climate change and evolution of poisoness plants emerge due to meteorite impact causing death during the Cretaceous period.

60 MYA

plancartemaria7431 — 2023-12-18 01:28:35 UTC

mammals start to appear. Resources dwindled as dinosaurs went extinct. Mammals were able to thrive and survive in the new environment. Dinosaurs were gone and enabled the chance of survival to mammals.

TODAY

plancartemaria7431 — 2023-12-18 01:36:42 UTC

Today, we are in the Cenezoic era in the Quaternary period.We now live in the Quaternary ice age as of 2.5 MYA.

1 BYA

plancartemaria7431 — 2023-12-18 01:51:26 UTC

Around this time the first multicellular organism appeared. Fossils from that period indicate the emergence of multicellular organisms. Fungi also made an appearance around 1 billion years ago.

525-500 MYA

plancartemaria7431 — 2023-12-18 01:56:12 UTC

The first vetebrates appear apart of the Cambrian period. Jawless fish among the earliest vertebrates identified in the fossil record. Also around this time the first appearance of plants in the Ordovician period appear( mosses and liverworts)

315-300 MYA

plancartemaria7431 — 2023-12-18 20:07:45 UTC

Reptiles first appeared around 315 MYA during the carboniferous period. First humans began to evolve 300 MYA. Homorectus and Homosapiens significantly differ in skull shape, eye shape, hip placement, and many more. Humans have learned to adapt and create resources for themselves to survive.

100 MYA

plancartemaria7431 — 2023-12-18 20:08:38 UTC

Evolution of Dinosaurs. Flowering plants appear 125 MYA and development of various ecosystems

710-641 MYA CRYOGENIAN PERIOD

plancartemaria7431 — 2023-12-18 20:15:47 UTC

Snowball Earth had occurred during the Cryogenian period. The Earth was covered in ice and the accumulation of global warming and in the atmosphere eventually emitted volcanic activity.