Unit 1: Interactions Within Ecosystems

Chapter 1: EcosystemsSection 1.2: Abiotic Parts of an Ecosystem

(Slide Show #2)

Abiotic Parts of An EcosystemIntroduction (p.16) What do plants need

to survive?

Are the items you listed considered abiotic or biotic? Explain.

Abiotic Parts of An EcosystemIntroduction (p.16)

When you listed the abiotic factors needed by plants to survive, did you consider the amount of each? For example, consider a blueberry

plant versus a cactus. Does each of these plants require the

same items you mentioned earlier?

Do they each require the same amount of each?

Abiotic Parts of An EcosystemIntroduction (p.16) Different plants are adapted to different

abiotic conditions. For example, the blueberry plant can survive

here in NL, but would it survive in the desert like the cactus? Explain.

Abiotic Parts of An EcosystemAbiotic Influences (p.17-19) Read the section “Abiotic Influences”

given on pages 17-19. What are the five abiotic factors that affect

an organism’s survival?1. __________________2. __________________3. __________________4. __________________5. __________________

Abiotic Parts of An EcosystemAbiotic Influences (p.17-19)1. Light and Light Intensity

(Sunlight) Plants and algae must have

sunlight to survive. Why?

Give an example of an organism that can survive without much sunlight. What adaptations does it have to help it survive?

Abiotic Parts of An EcosystemAbiotic Influences (p.17-19)

Temperature Some organisms need warm temperatures to

survive while others can survive in very cold temperatures. Can you think of an example of each and explain

their adaptations that help them survive? Warm temperature organism:

Cold temperature organism:

Abiotic Parts of An EcosystemAbiotic Influences (p.17-19)

Soil What role does soil play in a plant’s survival?

What other organisms rely on soil to survive?

List 3 abiotic parts of soil.

Abiotic Parts of An EcosystemAbiotic Influences (p.17-19)

Air/Wind Some organisms need to use

air/wind to survive. Example:

Some organisms must adapt in order to survive in harsh, windy conditions. Example:

Abiotic Parts of An EcosystemAbiotic Influences (p.17-19)

Water As you may already know,

water is an abiotic factor that no organism can live without.

What are some ways that organisms use and/or need water to survive?

Abiotic Parts of An EcosystemAbiotic Influences (p.17-19) Choose an organism that lives in NL. Describe

how it is influenced by the abiotic factors below:

Organism:

Sunlight Temperature Soil Air/Wind Water

Abiotic Parts of An EcosystemCore Lab (1-2A): Field Trip to the Schoolyard (p.20)

In this lab, you will explore the following question: What abiotic and biotic factors can

you observe and measure in your schoolyard ecosystem?

See your lab handout for your instructions.

Abiotic Parts of An EcosystemCheck Your Understanding (p.23) Assignment #1 (Part B)

Complete the following “Check Your Understanding” questions given below: #3, #4, #5, #8, and #9

The due date will be assigned by your teacher.