Biotic and Abiotic Factors

Biotic and Abiotic Factors

Ecosystems

Learning Objectives:

• We will describe how biotic and abiotic parts of an ecosystem interact.

• We will investigate how organisms and populations in an ecosystem depend on and may compete for biotic and abiotic factors.

Biotic Factors

• Bio means life.

• Any living or once living part of an ecosystem.

• They can be producers, consumers, or decomposers.

Biotic Examples

Producer: Plants

Take energy from the sun to make their own food: Photosynthesis.

Biotic Examples

Consumer: Animals

Some consumers eat producers to gain energy. Some consumers eat other consumers to gain energy.

Biotic Examples

Decomposers: Fungi

Decomposers consume once living things to recycle their nutrients back into the ecosystem.

Open Ended

Brainstorm: What other Biotic factors can you think of?

Multiple Choice

What does "Bio" mean?

• Biology

• Biotic

• Life

Multiple Select

What are three examples of biotic factors in an ecosystem?

• Tree

• Frog

• Mushroom

• Transformer

Multiple Choice

Which biotic factor is an example of a producer?

• Plant

• Animal

• Fungus

Multiple Choice

Which biotic factor is an example of a consumer?

• Plant

• Animal

• Fungus

Multiple Choice

Which biotic factor is an example of a decomposer?

• Plant

• Animal

• Fungus

Multiple Choice

Where do producers get their energy?

• The Moon

• The Stars

• The Sun

Multiple Select

Where do consumers get their energy?

• The Sun

• Producers

• Other Consumers

• Optimus Prime

Multiple Choice

Where do decomposers get their energy?

• Dead Things

• Living Things

• Transformers

Poll

What do you want to learn more about?

• Producers

• Consumers

• Decomposers

• Ecosystems

Open Ended

Share with the class two or three Biotic Factors in your neighborhood:

Abiotic Factors

• No life cycle - Abio means never alive!

• Any nonliving part of an ecosystem.

• Directly affect the survival of biotic factors.

Abiotic Example

Water: Everything alive on Earth needs water to live. Water is not alive.

Abiotic Example

The Sun: Provides energy to the Earth and impacts most living things. The Sun is not alive.

Abiotic Example

Earth: Everything alive depends on the Earth, but the Earth itself is not alive.

Open Ended

Brainstorm: What other abiotic examples can you think of?

Multiple Choice

What does "Abio" mean?

• The reflection of light off snow or ice.

• Any nonliving thing.

• Masculine version of the name Abby.

Multiple Choice

Is Pollution an Abiotic factor?

• Yes.

• No.

Multiple Choice

Is the Water Cycle (AKA Hydrologic Cycle) a Life Cycle?

• Yes.

• No.

Multiple Choice

Are the Sun and the Earth alive?

• Yes.

• No.

Multiple Choice

Do the Sun and the Earth support life?

• Yes.

• No.

Multiple Choice

How would you categorize Weather?

• Biotic Factor.

• Abiotic Factor.

Multiple Choice

How would you categorize Altitude or Elevation?

• Biotic Factor.

• Abiotic Factor.

Multiple Choice

How would you categorize the Atmosphere?

• Biotic Factor.

• Abiotic Factor.

Open Ended

Which Abiotic Factors do you want to learn more about?

Open Ended

Share with the class two or three Abiotic Factors in your neighborhood:

Open Ended

Brainstorm: An ecosystem is experiencing a devastating drought. It has not rained in weeks. How will the severe lack of rainfall affect the biotic factors in the ecosystem?

Open Ended

Brainstorm: A large majority of soil and rocks used for shelter are washed away in a flood. How will this affect the biotic factors in this ecosystem?

Open Ended

Brainstorm: An unexpected blizzard drops several feet of snow overnight. How will this affect the biotic factors in this ecosystem?

Open Ended

How can I make this lesson better? (Mentor Sentence: "You can make this lesson better by...")