The Earth, a Living Planet
The existence of water and a protective atmosphere were key elements for the appearance of life on Earth. The first cells appeared 3.5 billion years ago. From these early forms of life, different groups of living things started to appear. Living things inhabit all areas of our planet. Human activity, however, is causing the deterioration of the natural environment and the disappearance of many organisms. [...]
Esta secuencia contiene:
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9 actividades
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71 recursos
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Idioma:
- Inglés
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Formato:
Interactivo
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Secuencia didáctica
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Didactic objetives Recognise the conditions that had to exist on Earth to allow for the existence of living beings. To know and be able to identify the elements involved in the emergence of life on our planet. [...]
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1. The beginning of life The Earth is the only planet in the Solar System that has all the conditions for life to develop. These conditions are its size, its distance from the Sun and the existence of water. Water is of vital importance. [...]
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The existence of water and a protective atmosphere were key elements for the appearance of life on Earth. The first cells appeared 3.5 billion years ago. From these early forms of life, different groups of living things started to appear. [...]
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1.1. The Earth, our planet The Earth is the only planet in the Solar System that has all of the conditions for life to develop. [...]
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2.1. Bioelements Bioelements are the chemical elements that form part of all living matter. There are around 70 bioelements, although not all of them are present in all organisms. [...]
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3.1. Living things are made up of cells All living things, also called organisms, are made up of cells. Numerous living things are made up of only one cell. They are called unicellular organisms. Other living things are composed of many cells. [...]
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4.1. Organisation of living things A multicellular organism is made up of millions of very different cells that specialise in certain functions. For example, neurons specialise in transmitting nerve impulses. [...]
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The existence of water and a protective atmosphere were key elements for the appearance of life on Earth. The first cells appeared 3.5 billion years ago. From these early forms of life, different groups of living things started to appear. [...]
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The existence of water and a protective atmosphere were key elements for the appearance of life on Earth. The first cells appeared 3.5 billion years ago. From these early forms of life, different groups of living things started to appear. [...]
Cursos y asignaturas
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