Biogeochemical Cycles. What is a cycle? Some are simple Some are complex.

Slides:

Advertisements

Similar presentations

Cycles in Nature Chapter 25, Section 2.

Advertisements

Section 2: Cycling of Materials

Section 3: Cycling of Matter

The Carbon Cycle The carbon cycle is the movement of carbon from the nonliving environment into living things and back Carbon is the essential component.

The Carbon and Nitrogen Cycles

Matter cycles through ecosystems. Chapter 1 Section 2: Carbon Cycle Nitrogen Cycle Nitrogen Cycle.

THE OXYGEN-CARBON DIOXIDE CYCLE.. Oxygen-Carbon Dioxide Cycle  Both are GASSES important to all living things.  Unlike water which always stays water,

Cycles of Matter:.

THE CARBON CYCLE. What Is Carbon? An element The basis of life of earth Found in rocks, oceans, atmosphere.

Section 2: Cycling of Materials

NUTRIENT CYCLES Nutrients are chemicals that organisms need to survive. Example – All organisms need Nitrogen to make protein NUTRIENTS must be RECYCLED.

BIOGEOCHEMICAL CYCLES. Bio: life Geo: Earth Chemical Cycle: repeats WHAT IS A BIOGEOCHEMICAL CYCLE?

Matter is not created or destroyed Law of Conservation of Matter.

Section 2: Cycling of Materials

Carbon Cycle  Exchange of carbon between environment & living things.  All living organisms contain carbon  Plants use CO 2 from air to make food through.

Carbon & Nitrogen Cycles. Recycling Matter All things living are made of matter Total amount of matter on Earth is limited, so it must be recycled again.

Ecosystems Section 3 Ecology 4.3 Notes. Ecosystems Section 3 Objectives Describe each of the biogeochemical cycles.

Biogeochemical Cycles. The movement of nutrients from the nonliving world into living organisms, and then back again.

What goes around comes back around!

MINDSTRETCHER Copy question. Study your homework Get out your homework and read it 2 times silently. Get out a blank piece paper and put your heading.

Cycling of Matter in Ecosystems. Biogeochemical Cycles Matter cannot be made or destroyed. All water and nutrients must be produced or obtained from chemicals.

Chapter 5 Section 2 The Cycling of Materials. Objectives List the three stages of the carbon cycle. Describe where fossil fuels are located. Identify.

An element The basis of life of earth Found in rocks, oceans, atmosphere.

Nutrient Cycles Certain materials are cycled through ecosystems to be used over and over, they are called nutrients Certain materials are cycled through.

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Section 2 The Cycling of Materials Objectives List the three stages.

The Carbon Cycle

1) 2) 3) 4) 5) 6) The Carbon Cycle Carbon dioxide in the air Plants take in CO 2 for photosynthesis and release O 2. Organisms take in O 2 for cellular.

How Ecosystems WorkSection 2 Section 2: The Cycling of Materials Preview Bellringer Objectives The Carbon Cycle How Humans Affect the Carbon Cycle The.

Aim: How does carbon dioxide & oxygen get recycled in the carbon- oxygen cycle? DO NOW: Write out the equation for both photosynthesis & cellular respiration.

THE CARBON CYCLE.

MATTER CYCLING IN ECOSYSTEMS Nutrient Cycles: Global Recycling –Global Cycles recycle nutrients through the earth’s air, land, water, and living organisms.

How Ecosystems WorkSection 2 Section 2: The Cycling of Matter Preview The Carbon Cycle How Humans Affect the Carbon Cycle The Nitrogen Cycle Decomposers.

Identify processes that cycle in the Earth Identify processes that cycle in the Earth Carbon Carbon Nitrogen Nitrogen Water Water The Nitrogen Cycle N.

How Ecosystems WorkSection 2 Section 2: The Cycling of Matter Preview Classroom Catalyst Objectives The Carbon Cycle How Humans Affect the Carbon Cycle.

Lesson 5 The Flow of Matter through Ecosystems. Water, Carbon, Oxygen and Nitrogen  Living things need water, oxygen, carbon, and nitrogen to survive.

THE CARBON CYCLE. What Is Carbon? Carbon is one of the most abundant elements on Earth, and is known as “the basic building block of life”. The basis.

 part of Earth where life exists  located near Earth’s surface where sunlight available  plants need sunlight to produce food - almost every other.

THE CARBON CYCLE.

Carbon-Oxygen Cycle 1 These two linked cycles provide plants and animals with energy and materials for the basic building blocks of life. Carbon and.

Objectives Describe the short-term and long-term process of the carbon cycle. Identify one way that humans are affecting the carbon cycle. List the three.

Biogeochemical cycles

Section 2: The Cycling of Materials

Section 2: Cycling of Materials

THE CARBON CYCLE Tuesday, October 11th.

Section 2: Cycling of Materials

THE CARBON CYCLE.

Section 2: Cycling of Materials

Section 2: Cycling of Materials

Carbon and Nitrogen Cycle

THE CARBON CYCLE.

THE CARBON CYCLE.

Section 2: Cycling of Materials

Section 2: Cycling of Materials

Ch 5 – How ecosystems Work

THE CARBON CYCLE.

THE CARBON CYCLE.

THE CARBON CYCLE.

THE CARBON CYCLE.

Section 2: Cycling of Materials

Carbon, Nitrogen & Phosphorus Cycles Ch. 5.2

Cycles in Earth Systems

THE CARBON CYCLE.

THE CARBON CYCLE.

Section 2: Cycling of Materials

Section 2: Cycling of Materials

THE CARBON CYCLE.

Biogeochemical Cycles

KEY CONCEPT Matter cycles in and out of an ecosystem.

Cycling of Matter 13.5.

Presentation transcript:

Biogeochemical Cycles

What is a cycle? Some are simple Some are complex

Biogeochemical Cycle The movement of nutrients (atoms) from: –Non-living environment – soil, water, air, rocks, fossil fuels INTO −Living organisms – plants, animals, humans AND BACK AGAIN.

The Carbon Cycle

Common Molecules With Carbon CO 2 = Carbon Di-Oxide C = Carbon CH 4 = Methane Gas C 6 H 12 O 6 = Sugar

Almost all life is based on carbon. The carbon cycle is a closed cycle. The total amount of carbon does not change. Carbon moves between living things, the atmosphere, inside the earth as fossil fuels, the soil and the oceans.

Sinks and Sources Sinks store carbon. Examples are the soil, the atmosphere, the ocean, and rocks. Sources release carbon. Examples are burning fossil fuels, animal respiration, methane production

Balance? If sinks and sources are in balance, the carbon stays in balance. An overload in the atmosphere (CO 2 ) can cause global warming.

Plants & Carbon CO 2 is essential for plants, algae, and some bacteria. O 2 is released into the atmosphere by plants and algae. (Carbon Source)

Living plants convert CO 2 to O 2 and carbon through photosynthesis sun and chlorophyll 6CO 2 + 6H 2 O----»C 6 H 12 O 6 + 6O2 Carbon + water sugar+ oxygen When dead plants decompose, carbon returns to the earth; dead plants that do not decompose may be burned, releasing carbon dioxide.

What are fossil fuels? The remains of plants that do not decompose. (Carbon Sink) When fossil fuels in the form of coal, oil, or gasoline are burned, carbon returns to the atmosphere as carbon dioxide gas. (Carbon Source)

What part do animals play in the oxygen-carbon dioxide cycle? Breathing animals take in oxygen and release carbon dioxide into the air. (Carbon Source) As dead animals decay, carbon returns to the earth. (Carbon Sink)

Scan in picture of carbon cycle

The Nitrogen Cycle

The Nitrogen cycle is a closed cycle. Nitrogen helps to support life by building proteins and other body chemicals.

As an organism decays, carbon returns to the earth and soil bacteria produce nitrogen. When coal or gasoline is burned, carbon dioxide and nitric oxides are released into the air.

Roots provide a home for nitrogen- fixing bacteria.

What is nitrogen fixation? Bacteria that live on the roots of plants remove pure nitrogen from the air and release it into the soil.

. Nitrogen in the air can not be used directly by most organisms. To be useful, nitrogen is removed from the air and combined with other elements to form nitrogen compounds. This process is called nitrogen fixation.

Decomposers break down animal waste and release nitrogen into the soil.

What two ways form pure nitrogen gas? 1. By bacteria during nitrogen fixation 2. By denitrifying bacteria

BrainPop

Add pic of nitrogen cycle

Biogeochemical Cycles