The video starts by establishing the key difference between Earth and the closest planets. For example, Venus has a dense cloud cover that traps solar energy and the average surface temperature is 470 degrees Celsius, and Mars has a thin atmosphere and the average temperature is -23 degrees Celsius.
Earth, in the middle of the extremes, has adequate radiation shielding in place, moderate temperatures and an oxygen rich atmosphere to support life as we know it.
Earth is a live, active planet with two heat engines that work in tandem to each other. The first is called convection and it’s internal. The second is from the sun or solar, which in turn works with the earth’s oceans.
It’s a balancing act, but provides the necessary energy to the planet to sustain life.
…show more content…
Revolutionary step in thinking was in the 17th century with Galileo and a telescope then to Isaac Newton showing scientific proof that Earth circled the sun
Why is Earth different than other planets? For one, it is the only living planet that supports life as we know it. All corners of the earth have life, whereas Earth’s closest planet cousins are considered dead and cannot support any life.
A key observation of the planet make up is as simple as rock vs. ice and gasses. Venus and Mars are closest to the sun so have high temperatures, whereas Jupiter and Saturn are further away – lower temperatures which is why it’s more gasses and ice.
Earth has several distinct layers – the core is solid iron, even in intense heat, the pressure from the other layers make it impossible for the heated iron to expand, so it stays solid.
The next layer up is the outer core and this is liquid iron. This leads to the mantel which is partially liquid and where lava comes from when a volcano erupts. Lastly, the crust is the thin layer on top where the materials and minerals are found and extracted for human
4. Identify the layer of the Earth in the diagram to the right which makes up 70% of the Earth’s mass and is mostly solid but capable of flow, causing changes in the Earth’s surface. (S6E5a)
in circumference. The outer few miles of lithosphere is made up of rock called crust.
I’d first like to discuss the four closest planets to the Sun, Mercury, Venus, Earth, and Mars, also known as terrestrial planets. These planets are different from Jovian planets, mostly because of their solid surfaces. However, these are not the only explanations for the distinctions between the Jovian and Terrestrial planets. Terrestrial planets have few moons, no rings surrounding the planets, high densities, and usually slow rotations. These planets are special because of their heavy metal core, which explains their high densities. When it comes to topography, these planets are known for having valleys and craters, which make them different from the gaseous Jovian planets. The atmospheres of the four terrestrial planets range from very thick atmospheres to very thing atmospheres. Throughout this paper, I will go more in-depth into each of these planets and what makes each one of them
Within our Solar System lies an abundance of planets, each with their own unique characteristics, including the Terrestrial planets of Venus, Earth, and Mars who vary in many aspects but, most importantly, their atmosphere.
The earth’s surface and the mantle make up the composition of the tectonic plates. This layer, called the lithosphere, rests on top of the asthenosphere, a layer of molten rock. The asthenosphere is constantly moving and flowing due to the extreme pressures...
90 percent of the effects of global warming are attributed to rising temperatures and heat. This heat tends to affect our oceans due to the ...
In many ways Venus is found to be similar to Earth. However their similarities do not extend further than their physical properties, for instance, their atmospheres differ greatly from each other. Venus is said to have atmospheric pressure of 92.1 barometers (Adams, D. Et al., 1994 p.126) which it is evidently 92 times greater than Earth’s that is 1.01 barometers (Adams, D. Et al., 1994 p.126) at sea-level. In spite of this comparison to Earth’s atmospheric pressure, Venus owns an out of the ordinary atmospheric composition.
The earth was formed 4.6 billion years ago from the nebula cloud of gas that created the Sun and the other planets present in the Solar System. Ever since then, the earth’s surface has been constantly changing; the primary reason for this is because of tectonic plates. Even though, humans have existed on Earth for around 200,000 years, humans have been responding to the challenges of living on a planet with a constantly changing surface by using scientific evidence and technology to help them adapt to a constantly changing environment.
Earth is the element of life found here because with the sun, earth nurtures all plants and
Core/Interior: The Earth has three layers to it's interior, the inner core, outer core, and mantle. Of these the outer core is thought to be liquid. Like most of the terrestrial planets at birth, the Earth has been molten and undergone some differentiation allowing the heavy material which is consisting mostly of an iron, nickel, and cobalt core making it's density five and a half times the density of water.
The layer underneath the crust is the mantle, which is made up mainly of ferro-magnesium silicates. The mantle is approximately two thousand, nine hundred kilometers thick, and is separated in to the upper and lower mantle. It is in the mantle where most of the centralized...
Venus is the second closest planet to the sun and is said to " . . . most closely resemble Earth in size, density, and...
For instance the authors mentions how burning coal accounts for about 20% of the green gases on the planet, transportation for about 27% and power plants for about 31%. Humans created all of these processes of green gases, and again they all contribute to the warming of the earth.
The amount of water that is on earth at any one time remains fairly constant because the water is moving form one reservoir into another such as river to ocean or ocean to atmosphere. This cycle involves the exchange of energy causes a change in temperature. This is why when evaporation occurs, it takes energy from its surroundings and cools the environment. While condensation occurs energy is released and the surrounding environment becomes warmer. The atmosphere is a mixture of nitrogen, oxygen, and other gasses that surround the earth. The atmosphere is made up of five layers known as the troposphere, the stratosphere, the mesosphere, the thermosphere, and the exosphere. The troposphere is the lowest layer of the earth’s atmosphere; it is also where all weather on earth takes place. The stratosphere is the second layer of the atmosphere, right above the troposphere. Above the stratosphere is the mesosphere and above that is the troposphere. The uppermost region of earth’s atmosphere is the exosphere. The air in the exosphere is extremely thin and almost the same as space. One of the many reasons the earths atmosphere is important is because it blocks
...ws radiation from the sun to expose the surface of the planet, adding to environment changes. If life exists on Mars today, it is most likely hiding beneath the surface. Over the past four billion years Earth has had many rocks blown from the surface of Mars, after much research, scientists say that of the thirty-four meteorites, three have the potential to carry evidence of past life on Mars (Carey, 2006). Researches have gathered evidence and continue to explore for life outside of Earth. Earth has provided these scientists with enough knowledge to understand the components needed to sustain life, therefore any research found is compared to the knowledge already understood about life on Earth. Earth is home to billions of plants, animals, bacteria and all types of living things, it is where human beings have evolved and adapted making this planet our home.