Ch 18-1 Abiotic factors

6 Characteristics of Living Things

1. Growth and Development

2. Organization (cells)

3. Response to stimuli

4. Homeostasis

5. Use of Energy

6. Reproduction

How do living things and the nonliving parts of the environment interact?

What do you think?

Before you begin, decide if you agree or disagree with each of these statements. As you view this presentation, see if you change your mind about any of the statements.

The air you breathe is mostly oxygen.

1. Agree

2. Disagree

Do you agree or disagree?

Not for a gradeAgr

ee

Disagre

e

00

30

Living things are made mostly of water.

1. Agree

2. Disagree

Do you agree or disagree?

Not for a

grade.

Agree

Disagre

e

00

30

Lesson 1 Reading Guide

1. What makes up an ecosystem?

2. How do abiotic factors affect living things (biotic factors)?

Focus Questions

18.1 Abiotic Factors

Lesson 1

• Ecosystem – all the living and nonliving things in a given area.

1. What makes up an ecosystem?

• An ecosystem can be a pond, a desert, an ocean, a forest, or your neighborhood.

Lesson 1

1. What makes up an ecosystem?

Ecosystem

Biotic factors

Abioticfactors

Leave space

under biotic

and abiotic

factors

Lesson 1

Using the picture, work with your team and do a RallyRobin to label the picture with:

- B (biotic factors, living)

- A (abiotic factors, nonliving)

Biotic vs. Abiotic factors

Lesson 1

1. What makes up an ecosystem?

Ecosystem

Biotic factors

Abioticfactors

Living things:

• ________

• ________

• ________

• ________

Nonliving things:

• ________

• ________

• ________

• ________

Add

examples to

concept map

1. Air (Atmosphere)

• Provides living things with Oxygen

– Atmosphere = 78% N2, 21%O2

• Protects them from certain harmful rays from the sun

Abiotic Factors that affect living things:

2. Water

• All life requires water

• Organisms are made mostly of water

• Need water for important life processes (growing & reproducing)

3. Sunlight

• Source of almost all energy on Earth

• Provided warmth & light

• Plants use sunlight to make food

4. Soil

• Provides water and nutrients for plants

• Home for many organisms

• Soil is made up of bits of rocks, water, air, minerals, and the remains of once-living things.

5. Temperature

• Influences where organisms can survive

• Temperatures on Earth vary greatly.

6. Climate

• Influences where organisms can live

• Climate describes average weather conditions in an area over time.

• A climate’s weather conditions include temperature, moisture, and wind.

Lesson 1

• Ecosystems include all the biotic and abiotic factors in an area.

• Biotic factors are the living things in ecosystems.

Lesson 1

• Abiotic factors are the nonliving things in ecosystems, including water, sunlight, temperature, climate, air, and soil.

The air you breathe is mostly oxygen.

1. Agree

2. Disagree

Do you agree or disagree?

Agree

Disagre

e

00

45

Living things are made mostly of water.

1. Agree

2. Disagree

Do you agree or disagree?

Agree

Disagre

e

00

45

Which term refers to the nonliving things in an ecosystem?

1. climate factors

2. biotic factors

3. abiotic factors

4. atmospheric factors

clim

ate fa

ctors

biotic

fact

ors

abiotic

fact

ors

atmosp

heric fa

ctors

0 000

45

Which of these is the layer of gases that surrounds Earth?

1. Ecosystem

2. Atmosphere

3. Climate

4. temperature

Ecosy

stem

Atmosp

here

Climate

tem

peratu

re

0 000

45

A climate’s possible weather conditions include which of these?

1. soil, temperature, and

moisture

2. atmosphere, moisture,

and wind

3. gases, moisture, and

atmosphere

4. temperature, moisture,

and wind

soil,

tem

peratu

re, a

nd mo...

atmosp

here, m

oisture

, a..

gases,

moist

ure, a

nd at...

tem

peratu

re, m

oisture

, ...

0 000

45

Enter Question Text

On the following slides, you will decide if the

picture shown represents biotic or

abiotic factors.

Abiotic or Biotic?

1. Abiotic

2. Biotic

Abiotic

Biotic

00

45

Abiotic or Biotic?

1. Abiotic

2. Biotic

Abiotic

Biotic

00

45

Abiotic or Biotic?

1. Abiotic

2. Biotic

Abiotic

Biotic

00

45

Abiotic or Biotic?

1. Abiotic

2. Biotic

Abiotic

Biotic

00

45

Abiotic or Biotic?

1. Abiotic

2. Biotic

Abiotic

Biotic

00

45

Abiotic or Biotic?

1. Abiotic

2. Biotic

Abiotic

Biotic

00

45

Abiotic or Biotic?

1. Abiotic

2. Biotic

Abiotic

Biotic

00

45

Abiotic or Biotic?

1. Abiotic

2. Biotic

Abiotic

Biotic

00

45

Abiotic or Biotic?

1. Abiotic

2. Biotic

Abiotic

Biotic

00

45