Welcome to Science Class!

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Welcome to Science Class!

• Todays Agenda
• Meet the scientists
• Science Assistant selection
• Review our course of study
• CB Pollution and Clean Stream
• Trip to Peace Valley Park next week
• Helpful Items on the Web

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Science Assistants

• Need two students
• Must be
• Responsible
• Trustworthy
• Organized
• Will change each marking period
• Assist in ensuring materials ready for labs

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Course of Study

• CBs Clean Streams and Pollution Unit
• Peace Valley Park trip (Sept. 11 or 12)
• Science Companion Program (New!)
• The Human Body in Motion
• Earths Changing Surface
• CBs HIV/AIDS Unit

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Goals
Date

• 1. You will be able to explain the importance of
  having a balanced environment. (quad a
  comprehension)
• 2. You will be able to create pictures that
  illustrate the new vocabulary. (quad a
  comprehension)

copy
You may create your own abbreviations when taking
notes and/or copying goals.
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Vocabulary

• ecosystem

plants and animals that interact with each other
and their environment to survive
2. ecology
the study of ecosystems
3. photosynthesis
plants use sunlight to create energy and produce
their own food
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Vocabulary

• producers

plants produce food for themselves and other
organisms
2.consumers
eat plants and other consumers
3. food chain

• the path of energy and nutrients through a
  community
• producers and consumers

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Balanced vs. Unbalanced
Our environment needs to be balanced in order for
life to continue as we know it. What might a
balanced environment look like?
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• What is the suns role in a balanced
• environment?

Table Talk
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(No Transcript)
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What might cause an unbalanced environment at
Lake Galena in Peace Valley Park?
Too many geese Messy visitors
Table Talk
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Group Work using Roles

• Cheerleader You will encourage others and
  celebrate
• great ideas/comments.

Checker You will make sure that all group
members have the information in their notebook so
they can use it to study from later.
Gatekeeper You will make sure that everyone is
contributing/taking turns.
Reporter You will share your groups poem with
the class in approximately ten minutes.
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Pollution

• P
• O
• L
• L
• U
• T
• I
• O
• N

• Think aboutWhat is it? Where does
• it come from? Examples?

Pollution is the addition of harmful substances
to the environment.
How does it contribute to an unbalanced
environment?
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Two Types of Pollution

• Non-point Source

• Point Source

How might you define each based on the following
pictures?
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Nonpoint Source Pollution
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Point Source Pollution
Factory Smoke Stack
Oil Refinery
Jet Engine
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How might we help the pollution dispensed by
smokestacks?

• scrubbers a device attached to a smokestack to
  remove sulfer dioxide

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Types of Pollution

• Non-point Source

• Point Source

comes from many different places, such as road
salt, manure in fields, pet wastes
comes from a specific point such as pipes, smoke
stacks, etc. YOU CAN POINT TO IT
How might you define each based on the previous
pictures?
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How might the two types of pollution lead to an
unbalanced environment?
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Stop and Jot

• Why is having a balanced environment
• important?

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What are some of our water resources in Bucks
County?

• Ponds
• Lakes
• Rivers
• Streams
• Creeks
• Wetlands

• Lake Galena
• Lake Nockamixon
• Delaware River
• Neshaminy, Pine Run, Perkiomen Creeks
• Wetlands

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Watershed

• Animated Watershed

All of the land area which drains into a
particular body of water, such as the Neshaminy
Creek.
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The Hydrologic (water) Cycle

• Animated Water Cycle
• Process by which our environment is constantly
  recycled and purified
• Four Stages

1. Evaporation- water warmed by sun
2. Condensation- temp. lowers
3. Transpiration- plants release water through
   leaves
4. Precipitation- falls back to Earth

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Conserving and Managing Our Water Resources ?

• Development in Bucks County
• What happens when land is developed?

• How might we help to protect our water resources
  (and all of our natural resources) in Bucks
  County?
• Table Talk

Examples Recycle, dispose of trash properly,
eliminate use of toxic products for cleaning,
fertilizers, etc
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Vocabulary

• ecosystem

2. ecology
Tonights Homework s 1-13, 28--Draw an
illustration to describe each vocab word under
the definition

• photosynthesis
• producers
• consumers
• food chain
• pollution
• point source pollution
• nonpoint source pollution
• watershed
• water resources
• stormwater runoff
• hydrologic water cycle
• 28. scrubbers

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Table Talk Match picture with word that best
describes it

• ecosystem
• photosynthesis
• producers
• consumers
• food chain

1
4
5
2
3
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Homework Activity

• The products we use everyday contribute to
  pollution problems in our watersheds.
• What can you do to help?

• Use survey sheet
• Refer to products in your own home
• Examples detergents to clean, fertilizers,
  beauty products, paint, etc
• Be able to explain how products in your home
  contribute to pollution in your watershed
• How do you dispose of these products?
• What could you use instead of those harmful
  products?

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Follow-Up for Homework Activity

• Share survey results with table team
• Approx. fifteen minutes to do this

• Table Talk
• Discuss ways in which recycling or reusing home
  materials might improve or help maintain a
  balanced environment.