[Music] our world is in peril gaia this period of the earth can no longer stand a terrible distraction pledging our planet [Music] earth science is the study of the earth and its neighbors in space it is a thrilling study with many interesting and practical applications scientists use their knowledge of the earth to locate and develop energy and mineral resources others study the impact of human activity on earth's environment and design methods to protect the planet some use their knowledge about earth's processes such as volcanoes earthquakes and typhoons to plant communities that will not expose people to these dangerous events [Music] good day earthlings i am teacher sheen your earth freak green fanatic science tastic teacher join me as we explore the interconnections between the land ocean atmosphere and the life of our planet watch intently and listen sensibly as we delve into the wonders of planet earth [Music] earth is the only planet known to cater life forms this planet has undergone massive change in the environment million years ago to enable living organisms to tribe and survive in it from single simple microorganisms earth's environment had allowed them to evolve into more complex and diverse beings the earth is our home it is an exceptional planet in the solar system where life is passable it is said to be in the sun's goldilocks zone and is also known as goldilocks planet same with venus and mars but currently only the earth got what it takes to be really habitable earth's environment is conducive to different life forms but what are the different characteristics of the earth that enable life to flourish in it before we go on let's have a drill let's hunt for words it's not the typical fb post that tells you that the first three words that you'll find will define your 2021 or your love life instead you will discover the terms related to our today's lesson hunt 10 words that are related to the planet's characteristics to support life looping can be done horizontally vertically or diagonally on a piece of paper list down all the words that you have found the words are water atmosphere temperature oxygen ozone greenhouse energy nutrients volcanism and radiation how many words did you find let's all together find out how those words are related to our today's discussion earth exists for 4.543 billion years in its early formation life is not possible because the environment does not permit it however as time goes by life flourished from meaning microorganism into a more complex organism the presence of life on earth was made possible due to the following factors temperature it influences how quickly atoms molecules or organisms move low temperatures slows down chemical reaction and produces ice that makes liquid water unavailable high temperature can cause breakdown of important biological molecules in earth's condition temperature is just right to support life look at the image of the planetary distances from the sun solar system is the earth's distance from the sun just right to support life you are right the earth is at the right distance from the sun not too close not too far imagine if the earth is too close to the sun like venus or too far from the sun like jupiter what do you think will happen when the earth is too close to the sun it will be very hot the liquid water will boil and will evaporate into gas if the earth is too far from the sun it will be very cold everything will freeze and no life on earth would exist why is sun important to life on earth the sun serves as an important role on earth our sun is stable and long-lasting star that provides ultimate sources of energy needed to support life the light energy from the sun gives energy to the plants for photosynthesis also the sun warms the planet and drives the hydrologic cycle water it is one of the important ingredients in the different biological processes absence of this will interfere reactions necessary for life however solid form of water will also hinder living organisms to use it water on earth has different forms it is solid or ice in tuples and liquid along the equator which allows living organisms to consume it liquid water is necessary for life to exist why do you know that water helps to regulate our body temperature and carries nutrients to all cells in our body and oxygen to our brain plants use water directly when they capture the light energy from the sun and transform it into energy energy earth has available energy rich sunlight to support life some chemosynthetic organisms rely on chemical energy to support various biological processes earth is the right position from the sun that enables it to harness enough amount of sunlight atmosphere it is defined as the layer or set of layers of gases surrounding a planet or other material why because the atmosphere can protect us from small meteors it can black out harmful rays insulation or shielding from greenhouse gases like carbon dioxide and methane the crops heat and avoid our planet from freezing giving the earth a comfortable temperature atmosphere also provides chemical needed for light such as nitrogen and carbon dioxide size of the planet and its distance from the sun affects its ability to hold significant amount of atmosphere earth has a right size and distance from the sun that permits it to have a right amount of atmosphere the presence of gravity also helps in sustaining its atmosphere nutrients it is an essential factor used to build and maintain organisms body structure insufficient or absence of nutrients can impede synthesis of different biological molecules in earth there are processes that recycle nutrients water carbon and oxygen phosphate and nitrogen cycles are some of the examples volcanism also helps in cycling the nutrients let me check on your understanding come on let's play fact or bluff say fact if the statement is correct and bluff if you think it's wrong are you ready number one low temperature slows down chemical reactions among living organisms is it a fact or a bluff it's a fact number two atmosphere provides chemicals needed for life is it a fact or a bluff it's a fact number three gravity does not affect the earth's atmosphere it is a fact or a bluff it's a bluff that should be gravity affects the earth's atmosphere number four water traps heat from the sun is it a fact or a bluff it's a bluff that should be greenhouse gases trap heat from the sun number five size and distance from the sun affect the planet's ability to hold atmosphere is it a fact or a bluff it's a fact number six absence of water interferes reaction necessary for life fact or bluff it's a fact number 7 all living organisms need sunlight a source of their energy is it a fact or bluff [Music] it's a bluff that should be most instead of all because some organisms don't need sunlight as a major source of energy number eight insufficient or absence of nutrients can hinder different biological processes is it a fact or a bluff it's a fact number nine volcanism helps in nutrient recycling is it effect or bluff it's a fact number 10 atmosphere protects earth from small to medium-sized meteorite impacts is it a fact or bluff [Music] it's a fact it's esqo clack let me check your understanding on today's lesson with these 10 item quiz listen and analyze to the following question choose the letter of the correct answer number one what is the most important factor that determines earth's temperature a size of the orbit b distance from the sun c gas in the atmosphere or d amount of water on the planet [Music] the correct answer is be number two which of the following is not a function of earth's atmosphere a it provides energy b it provides significant insulation c it protects earth from harmful radiation d it gives protection against small to medium-sized meteorites the correct answer is letter a it provides energy number three which of the following best describes a greenhouse gas a it is a gas that traps heat b it is a gas that releases heat from the earth c it is a gas that shields earth from radiation d it is a gas that provides protection from space [Music] the correct answer is letter a it is a gas that drops heat number four an astronomer observed an earth-size-like planet in a distant galaxy based on the data the planet is at the same distance from each star like earth's to its star the sun it is also covered with a thick atmosphere which is composed of carbon dioxide and shows no volcanic activity what can you infer from these data a the earth-like planet is hot and no nutrient cycling occurs b the earth-like planet is cold and no nutrient cycling occurs see the earth-like planet is hot and nutrient cycling of course the the earth-like planet is cold and nutrient cycling occurs [Music] the correct answer is letter a the earth-like planet is hot and no nutrient cycling occurs number five how does ozone layer support life on earth a by providing significant insulation b by protecting it from sun's harmful radiation c by providing energy needed by organisms d by giving protection against small to medium-sized meteorites the correct answer is b by protecting it from the sun's harmful radiation number six if greenhouse gases will increase in earth's atmosphere what will happen to its temperature a earth's temperature will increase b earth's temperature will decrease c earth's temperature will become stable or d earth's temperature will not be affected the correct answer is a the earth's temperature will increase number seven ozone layer is one of the compositions of earth's atmosphere what do you think will happen if ozone layer totally depletes a changes in weather b solar wind will pass through c penetration of ultraviolet radiation to earth's surface the meteors will freely get through the earth's atmosphere the correct answer is c penetration of ultraviolet radiation to earth's surface number eight which of the following are not the function of the earth's ozone layer one it produces enough amount of rain two it filters harmful uv radiation that reaches earth three it regulates the weather on earth four it protects earth from meteors and asteroids impact a one two and three b one two and four c one three and four or d two three and four the correct answer is c one three and four number nine which of the following factor is essential for life to exist a nutrients b temperature c liquid water d all of this the correct answer is d all of this number 10 how does temperature affect the ability of earth to support life a temperature intensifies gravity b temperature produces nutrients c temperature protects earth from radiation d temperature affects biological and chemical processes the correct answer is d temperature affects biological and chemical processes did you get a perfect score great if not that's okay you have a lot of time to review this episode on deafbedtv's official youtube channel let's wrap it up today you learn about the five main factors that make the planet earth habitable for us the earthlings just remember twin t-w-e-a-n t temperature the earth is the right distance from the sun w water liquid water is necessary for life to exist e energy with a steady input of either light or chemical energy cells can run the chemical reactions necessary for life a atmosphere it keeps the surface warm and protects it from radiation in small to medium-sized meteorites and and nutrients it is an essential factor used to build and maintain organisms body structure compared to other planets earth may seem perfect or balanced but this is a matter of perspective we've never met life beyond earth so we don't know exactly what full range of possible conditions for life is out there dear earthlings don't you realize that we are so lucky with all the factors that make our planet habitable plus the gravity that keeps us on the ground and causes objects to fall but according to albert einstein you can't blame gravity for falling in love the earth sustains life because of the factors that exist at the same time we only live once on earth we should always be grateful for all the blessings that we have above all for the habitable earth that our creator entrusted us tune in for our next science-tastic episode on earth subsystems as we continue to explore the interconnections between the land ocean atmosphere and the life of our planet only here at devon tv this is teacher sheen your earth freak green fanatic science-tastic teacher see ya [Music] [Music] you