Ecology Chapter 1

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Ecology Chapter 1
1.1 Parts of Earth
Solar System
• Earth is the third planet from the sun (3rd
rock)
• Mercury, Venus Earth and Mars are the
inner planets (rock)
• Jupiter, Saturn, Uranus, and Neptune are
the outer planets (gaseous)
• Each planet has unique characteristics
Earth
•
The only know planet to support life
(organisms)
1. Liquid water
•
•
Temp depends on distance from sun
Why is liquid water so important?
2. Layer of air around the planet
•
•
Temp regulation
Oxygen
3. Energy from the sun
Electromagnetic Spectrum
Earth’s 3 layers
1. Lithosphere
1. Land that forms the earth’s surface
2. Rocks, soil and sand
2. Hydrosphere
1. Water on the earth
2. Oceans, lakes, rivers, ground & clouds
3. Atmosphere
1. Air that surrounds the earth
1.2 Land and Water
•
•
Lithosphere is between 10 -70 km thick
Three types of rock
1. Igneous rock formed from cooled liquid rock
2. Sedimentary rock from layers of sediment
– Fossils
3. Metamorphic rock changed by temp and
pressure
Hydrosphere
• Over 70% of the earth is covered in water
– 97% salt water
– 3% fresh
• 2/3 frozen ……… 1/3 liquid
• Fresh water a valuable resource!
• Ground water found in aquifers
– Pumped to surface by man or nature
– Refills slowly! May dry up if not careful
• Surface is lakes, rivers and run off
Activity 1.1
• Get graph paper and colored pencils
• Follow the procedure
• Do the analysis questions 1-4 and the
conclusion
• Turn into top basket when done
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