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Inner Terrestri al Planets Introducti on

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Page 1: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

Inner Terrestrial

Planets

Introduction

Page 2: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

•Planets are characterized by composition, density, and distance from the sun.

•The inner planets are smaller and rocky (example = Earth).

•The outer planets are large and made of gases (example = Jupiter).

The 8 Planets

Page 3: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

Planet Earth

Page 4: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

• Environmental Science - is the study of the infinite number of interactions between humans and the world in which we live. This includes the living and non-living factors As Earth’s human population continues to grow, as technology advances and human

needs and wants increase, our

impacts on the world become

more widespread and severe,

despite improvement in some

areas.

Page 5: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

What’s so special about Earth?

• Earth supports life due to the presence of liquid water.

• Earth maintains a steady surface temperature due to the heat being absorbed in the summer and released in the winter through water.

• Many more unique qualities

Page 6: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

Is the sun important?

•Supports life on Earth by transmitting energy to us in the form of light

•Light travels to Earth in the form of waves

Page 7: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and
Page 8: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

Why are plants green?

Part IPart II

Page 9: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

1.1 Planet of Life

• Living things are called

organisms.

• Lithosphere – Layer of land

that forms Earth’s surface.• Hydrosphere – All the parts of Earth that are

made up of water.• Atmosphere – Layer of air that surrounds Earth.• Biosphere – Anywhere on Earth where life exists

Page 10: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

1.2 Earth’s Land and Water

Lithosphere

• 3 Main rock types:– Sedimentary, Igneous, and Metamorphic

• Majority of rock is Igneous, however the rocks that we are in contact with are Sedimentary for the most part.

• Major Minerals – Silicates

Page 11: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

Examples of Igneous rocks that would form from lava include basalt, obsidian, scoria, and pumice.

Page 12: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

Rock that is changed by heat and pressure

Metamorphic Rock

Page 13: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

Sedimentary Rock

Rock that is formed from smaller particles that are squeezed together

due to pressure.

Page 14: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

Hydrosphere• More than

70% of Earth is covered in water.

– 97% of it is Salt water and 3% Fresh water

Page 15: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

• 2/3 or 66% of Freshwater is in our ice caps.

As our ice caps melt our freshwater decreases and our saltwater increases.

Surface water – ponds, lakes, and streamsGroundwater - aquifers

Page 16: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

1.3 The Atmosphere

• 4 Atmospheric layers based on temperature change.

• Thermosphere (Highest)• Mesosphere• Stratosphere• Troposphere (Lowest)

• The atmosphere becomes less dense the farther you travel from Earth.

Page 17: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

The Air Pollution Problem

• Air is a mixture of gases.– Nitrogen 78% and Oxygen 21% followed by trace

amounts of Argon, CO2, and WV.

Page 18: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

• Air pollution is the contamination of the atmosphere by wastes from sources such as industrial burning and automobile exhausts.

Page 19: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

Primary and Secondary Pollutants

Page 20: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

• A primary pollutant is a pollutant that is put directly into the atmosphere by human or natural activity. An example would be soot from smoke.

• .

Page 21: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

• A secondary pollutant is a pollutant that forms in the atmosphere by chemical reactions with primary air pollutants, natural components in the air, or both. An example would be ground-level ozone.

• Ground level ozone forms when the emission from cars react with the UV rays of the sun and then mix with the oxygen in the atmosphere

Page 22: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

• Acid precipitation is precipitation, such as rain, sleet, or snow, that contains a high concentration of acids, often because of the pollution of the atmosphere.

• When fossil fuels are burned, they release oxides of sulfur and nitrogen.

• When these oxides combine with water in the atmosphere they form sulfuric acid and nitric acid, which falls as acid precipitation.

What Causes Acid Precipitation?

Page 23: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

• Acid precipitation is precipitation, such as rain, sleet, or snow, that contains a high concentration of acids, often because of the pollution of the atmosphere.

• When fossil fuels are burned, they release oxides of sulfur and nitrogen.

• When these oxides combine with water in the atmosphere they form sulfuric acid and nitric acid, which falls as acid precipitation.

What Causes Acid Precipitation?

Page 24: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

What Causes Acid Precipitation?

Page 25: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

• This acidic water flows over and through the ground, and into lakes, rivers, and streams.

• Acid precipitation can kill living things, and can result in the decline or loss of some local animal and plant populations.

What Causes Acid Precipitation?

Page 26: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

• A pH number is a value that is used to express the acidity or alkalinity (basicity) of a system.

• Each whole number on the scale indicates a tenfold change in acidity.

• A pH of 7 is neutral, a pH of less than 7 is acidic, and a pH of greater than 7 is basic.

• Pure water has a pH of 7.0, while normal precipitation has a pH of about 5.6.

What Causes Acid Precipitation?

Page 27: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and
Page 28: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

• Normal precipitation is slightly acidic because atmospheric carbon dioxide dissolves into the precipitation and forms carbonic acid.

• Precipitation is considered acid precipitation if it has a pH of less than 5.0

• The pH of precipitation in the eastern U.S. and Canada ranges from 4.2 to 4.8, with the most acidic precipitation occurring around Lake Erie and Lake Ontario.

What Causes Acid Precipitation?

Page 29: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

Global Warming

• Light energy enters the atmosphere and is absorbed at the surface. Light energy is changed to heat. Heat energy is radiated back to space in the form of infrared radiation.

Page 30: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

The Greenhouse Effect• CO2 is the most significant greenhouse gas emitted in

large quantities by humans.• Greenhouse effect got its name because heat is

trapped.• Ice cores – long cylinders of ice that are drilled and

removed from deep within a sheet of polar ice.• Ways to reduce Greenhouse Gases in the atmosphere:

– Electric Cars

– Solar Power

– Increasing Fuel Efficiency Standards

Page 31: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and
Page 32: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

Effects of Greenhouse Gas Pollution

• During the past 150 years, levels of atmospheric CO2 has increased due to increased fossil fuel use.

• Global Warming – an increase in Earth’s average surface temperature caused by an increase in greenhouse gases.

• Some computer models project that Earth’s temperatures will rise by 2 – 4 degrees C.

• Ice Caps will melt, coastal areas will flood, weather patterns will change, salt water will enter freshwater aquifers.

Page 33: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and
Page 34: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

1.4 The Biosphere

• Anywhere that life can and is supported.

• It is 20 km thick

Page 35: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

Spheres Interact

• Lithosphere interacts with the Hydrosphere when toxins from a factory run off into a water system and poison fish in a body of water

• Hydrosphere interacts with the Atmosphere when water evaporates and forms clouds

• Atmosphere interacts with the Lithosphere when acid rain falls and dissolves limestone

Page 36: Inner Terrestrial Planets Introduction. Planets are characterized by composition, density, and distance from the sun. The inner planets are smaller and

An ecosystem service is the role that ecosystems play in creating a healthful environment for humans.

•  This grouped ecosystem services into four broad categories:– Provisioning - such as the production of food

and water–  Regulating - such as the control of climate

and disease–  Supporting - such as nutrient cycles and

crop pollination– Cultural - such as spiritual and recreational

benefits.


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