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the earth, the body - Coggle Diagram
the earth
The study of rocks, also known as geology, is a fascinating way to understand the history of the Earth. Geologists, like Super Rock detectives, aim to piece together a story that started billions of years ago.
Radiometric dating is a method used to determine the age of rocks by checking their contents, such as uranium and lead. However, it is controversial and only works on certain types of rocks. For sedimentary rocks, geologists must use layers of rock to age them accurately.
The global geologist community has achieved remarkable precision and accuracy by analyzing rocks' layers, mapping out Earth's history to a degree of detail. This includes events like mountain formation, volcanic activity, and ocean creation.
Earth's core, an enormous ball of metal, is divided into two parts: the outer liquid core and the inner solid core. Geologists use earthquakes to measure the depth and consistency of the core.
Radiometric dating is the main method for figuring out the age of rocks and the history of the planet. Many rocks contain radioisotopes, which are unstable chemical elements that decay over time and produce radiation. These radioisotopes act like chemical clocks, decaying at different, predictable rates, which can last for millions or even trillions of years.
The geologic time scale, which divides Earth's history into different units of time, is a fascinating aspect of geology. Geologists have achieved significant work in this field, but it can be overwhelming to understand the complexity of the subject.
The Precambrian eon, which spans from Earth's formation around 4.5 billion years ago to 542 million years ago, is divided into three smaller eons: Hadean, Archean, and Proterozoic. The Hadean eon marks the birth of our solar system, but it was essentially a giant sphere of molten rock.
Iron, the sixth most abundant element in the universe, is thought to have sunk into the core during the formation of the early Earth. The core is believed to be 80% iron, but the exact amount is still debated. The Earth's outer liquid core spins when it rotates.
the body
Hydrogen and oxygen aside, there are four other chemical elements that account for the other 99%
About 63% of the atoms that make you up are hydro-gen, human body is made up of water (H20)molecules
All of these organs work together in what are known as bodily systems,
As human beings, we hide our skeletons away in our bodies, which is called an endoskeleton.
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Every bone in your body is connected to another one somehow, except one: the hyoid
If white blood cells are like the blood's police officers, then the lymphatic system is like the entire body's police force.
Bacteria, by the way, are living cells, while viruses are much smaller - they're bits and pieces of genetic material housed within a protective coating.
about. These lymph nodes are packed with more white blood cells that filter the lymph fluid so it's cleaned of nasty stuff and ready to be returned to the bloodstream.
When you take a big breath, this is the system that you're using - although while the breathing itself is obviously pretty crucial, there's a lot more to it than just the ins and the outs.
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On average, you're breathing between 17,000 and 23,000 breaths a day
Obviously a skeleton is pretty pointless unless you've got a way to shake your bones about,They are attached to the bones by tendons, and when the muscle fibres contract
f you've ever done cardio down at the gym, this is the system you've been working out.heart - which is the body's most powerful pump - circulates blood around your body.
The heart does the most physical work of any muscle in the body,
Your skin is actually your largest organ, weighing in at around 4kg.
Look at your skin very close up and you'll be able to see that it's made of a thin, outer layer called the epidermis.