Environmental Systems & Societies SL
Environmental Systems & Societies SL
9
Chapters
219
Notes
Unit 1 - Foundations Of Environmental Systems & Societies
Unit 1 - Foundations Of Environmental Systems & Societies
Unit 2 - Ecosystems & Ecology
Unit 2 - Ecosystems & Ecology
Unit 3 - Biodiversity & Conservation
Unit 3 - Biodiversity & Conservation
Unit 4 -Water & Aquatic Food Production Systems & Societies
Unit 4 -Water & Aquatic Food Production Systems & Societies
Unit 5 - Soil Systems & Terrestrial Food Production Systems & Societies
Unit 5 - Soil Systems & Terrestrial Food Production Systems & Societies
Unit 6 - Atmospheric Systems & Societies
Unit 6 - Atmospheric Systems & Societies
Unit 7 - Climate Change & Energy Production
Unit 7 - Climate Change & Energy Production
Unit 8 - Human Systems & Resource Use
Unit 8 - Human Systems & Resource Use
Internal Assessment
Internal Assessment
IB Resources
Unit 2 - Ecosystems & Ecology
Environmental Systems & Societies SL
Environmental Systems & Societies SL

Unit 2 - Ecosystems & Ecology

Sun's Odyssey: Earth's Atmospheric Maze

Word Count Emoji
552 words
Reading Time Emoji
3 mins read
Updated at Emoji
Last edited onย 5th Nov 2024

Table of content

Not all sunbeams become superstars! ๐ŸŒŸ The light we get from the sun has a variety of fates and not all of them lead to photosynthesis in plants.

How sunlight travels & sometimes doesn't ๐Ÿš€

  • Space Reflections: Some sunlight gets cold feet and never makes it to Earth! It's reflected away into the vastness of space, kind of like a boomerang. This is often due to particles in the Earth's atmosphere acting like mirrors and sending the light back where it came from.
  • Atmospheric Absorption: Some sunlight gets caught in the atmosphere and absorbed there. The Earth's atmosphere is like a big sun sponge, soaking up parts of the sun's rays. This absorption keeps our planet from becoming too hot.
  • Earthly Reflections: Even if the sunlight manages to dodge the atmospheric boomerangs and sponges, it might still get reflected by the Earth's surface. Snowy mountains and sandy deserts, for example, are really good at sending the sun's light right back up into the sky.
  • Non-Photosynthetic Surfaces: Think of these as the "sunlight black holes" on Earth. These are the surfaces that can't use sunlight for photosynthesis - like a rock or your school building. These surfaces can absorb or reflect light, but they can't transform it into energy like plants can.
  • Leafy Reflections and Transmissions: Even plants can sometimes act like sunlight black holes! Sometimes sunlight is reflected by leaf surfaces, or it goes right through the leaves without getting used. You could compare this to a bad phone connection - the signal's there, but it just doesn't get through.
  • Wavelength Issues: Not all sunlight is created equal! For photosynthesis, plants need red or blue light. If the light isn't the right color (or more scientifically, the correct wavelength), the plant won't use it. This is like getting a key that doesn't fit your lock - it's just not going to work.
  • Water Woes: Aquatic plants have an extra challenge. Some sunlight is either absorbed or reflected by water before it can reach them. Imagine trying to catch a ball underwater - it's much harder, right?

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IB Resources
Unit 2 - Ecosystems & Ecology
Environmental Systems & Societies SL
Environmental Systems & Societies SL

Unit 2 - Ecosystems & Ecology

Sun's Odyssey: Earth's Atmospheric Maze

Word Count Emoji
552 words
Reading Time Emoji
3 mins read
Updated at Emoji
Last edited onย 5th Nov 2024

Table of content

Not all sunbeams become superstars! ๐ŸŒŸ The light we get from the sun has a variety of fates and not all of them lead to photosynthesis in plants.

How sunlight travels & sometimes doesn't ๐Ÿš€

  • Space Reflections: Some sunlight gets cold feet and never makes it to Earth! It's reflected away into the vastness of space, kind of like a boomerang. This is often due to particles in the Earth's atmosphere acting like mirrors and sending the light back where it came from.
  • Atmospheric Absorption: Some sunlight gets caught in the atmosphere and absorbed there. The Earth's atmosphere is like a big sun sponge, soaking up parts of the sun's rays. This absorption keeps our planet from becoming too hot.
  • Earthly Reflections: Even if the sunlight manages to dodge the atmospheric boomerangs and sponges, it might still get reflected by the Earth's surface. Snowy mountains and sandy deserts, for example, are really good at sending the sun's light right back up into the sky.
  • Non-Photosynthetic Surfaces: Think of these as the "sunlight black holes" on Earth. These are the surfaces that can't use sunlight for photosynthesis - like a rock or your school building. These surfaces can absorb or reflect light, but they can't transform it into energy like plants can.
  • Leafy Reflections and Transmissions: Even plants can sometimes act like sunlight black holes! Sometimes sunlight is reflected by leaf surfaces, or it goes right through the leaves without getting used. You could compare this to a bad phone connection - the signal's there, but it just doesn't get through.
  • Wavelength Issues: Not all sunlight is created equal! For photosynthesis, plants need red or blue light. If the light isn't the right color (or more scientifically, the correct wavelength), the plant won't use it. This is like getting a key that doesn't fit your lock - it's just not going to work.
  • Water Woes: Aquatic plants have an extra challenge. Some sunlight is either absorbed or reflected by water before it can reach them. Imagine trying to catch a ball underwater - it's much harder, right?

Unlock the Full Content! File Is Locked Emoji

Dive deeper and gain exclusive access to premium files of Environmental Systems & Societies SL. Subscribe now and get closer to that 45 ๐ŸŒŸ

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