Ecosystems: Abiotic Factors
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Transcript of Ecosystems: Abiotic Factors
Ecosystems: Abiotic Factors
Ecosystems support lifeLiving things depend on the environment
You would not find a kangaroo in the Arctic and you won’t find a polar bear in Australia.
Ecosystems support lifeLiving things depend on the environment
Each of these organisms is suited to a certain environment.
Ecosystems support lifeLiving things depend on the environment
The kangaroo and the polar bear are able to survive despite the harsh condition of their surroundings.
Vocabulary Words
1. ecology The scientific study of how living things
interact with each other and their environment. Turn to letter “E” of you glossary, and enter
the word “ecology” and the page number of your notes.
Vocabulary Words
2. ecosystem All the living and nonliving things in a given
environment.EX: An ecosystem can be as small as a meadow
or a swamp……
Vocabulary Words2. ecosystem All the living and nonliving things in a given
environment.….. or as large as a forest or a desert.Turn to letter “E” of you glossary, and enter the
word “ecosystem” and the page number of your notes.
What is a mnemonic?
Abiotic Factors Just remember: Turtles Wear Socks At Cold
Schools
abiotic factor examples
1. temperatureTemperature influences where organisms can live. Temperatures on Earth vary enough that humans can’t live everywhere comfortably.
abiotic factor examples 2. water
All life on Earth requires water. Most organisms are made mostly of water. Every ecosystem must contain some water to support life.
abiotic factor examples 3. Sun
The Sun is the source of almost all energy on Earth. The Sun provides warmth and light, and many plants use sunlight to make food.
abiotic factor examples 4. atmosphere
The atmosphere is a layer of gases that surrounds Earth. Made of 78% Nitrogen, 21% Oxygen, and 1% trace gases. Provides living things with oxygen and protects them from certain harmful rays from the Sun.
abiotic factor examples
5. climate Climate describes average weather conditions in an area over time. Weather conditions include temperature, moisture, and wind.
abiotic factor examples 6. soil
Soil is made of bits of rocks, water, air, minerals, and the remains of once-living things. Provides water and nutrients for the plants we eat and is home for many organisms, such as insects, bacteria, and fungi.
These nonliving parts of the environment affect all living things. If either a biotic or abiotic factor is disturbed, other parts of the ecosystem are affected (ex: Global Warming).
Review Questions Which term refers to the nonliving things in an
ecosystem?A. Climate factorsB. Biotic factorsC. Abiotic factorsD. Atmospheric factors
Review Questions Which of these is the layer of gases that
surrounds Earth?A. EcosystemB. AtmosphereC. ClimateD. Temperature
Review Questions True/False The air you breathe is mostly oxygen. True/False Living things are made of mostly water.
Just remember: Turtles Wear Socks At Cold Schools