January+8-9,+2009+Science

January 8-9, 2009 Science

Friday January 9, 2009 Science: Notes: Foldable from PowerPoint on the properties of acids and bases. Acid and Bases.ppt Check the pH of some common substances with pH paper. Teach students how to check the fish tanks. This may take the entire period since our lab skills are under construction. Lab book: Construct a pH chart.
 * Essential Question:** What is pH? How does acid rain change our planet?
 * Activity:** Safety glasses are required.

Introduce two other problems we are facing. How are they alike and how are they different?
 * Global Changes in the Atmosphere: Global warming and Ozone Depletion**

**Thursday January 8, Science:**
__Focus__: Goal 3.03 Conclude that the good health of environments and organisms requires: 3.02 Describe properties that can be observed and measured to predict air quality:
 * The monitoring of air quality.
 * Taking steps to maintain healthy air quality.
 * Stewardship.
 * Particulate matter. **//(vaseline squares or vacuum cleaner and coffee filter)//**
 * Ozone. **//(bracelet, paper)//**

__Essential Question__: What are pollutants that influence air quality? __Classwork__: Review from first part of chapter 2. __Demo:__ Why is the acidity of a chemical important? Visuals: chalk and hydrochloric acid; rock testing examples. Metals and acid. Collect the particulate matter air pollutants from 3 different locations with either with vaseline on 8.5 cm (3"x3" ) paper squares or using the home vacuum cleaner lab on page 66 and 67. I can provide vaseline if you do not have the right supplies. The vaseline squares should be checked daily for 3 days. Gentle rain should not change the vaseline if you have covered the square evenly.
 * Take notes on pollutants.
 * Begin guided reading sheet.
 * __Homework #1 Lab Testing__: **


 * __Homework #2__ **: Bring in chemicals to test their pH so we can understand acid rain.

Key terms for foldable notes:

natural events 1/2 comes from cars and other vehicles || ===air pollutants:===
 * ===Vocabulary Words=== || ===What?=== || ===Source=== || ===Health Effect=== ||
 * ===Pollutants=== || Harmful substances in air, water or soil || humans and

cancer, lung problems
|| to make the pH increase to a stronger acid || mostly car emissions and factories Volcanic eruptions || ===Kills fish, changes eggs and baby amphibians===
 * ===Acid Rain=== || Chemicals added to rain in the atmosphere

|| gasoline and other fossil fuels || ===Irritates the eyes, throat, and lungs.===
 * ===Photochemical Smog=== || Reddish brown mixture of pollutants thathave reacted in sunlight to form ground level ozone and other chemical pollutants. Troposphere. || human activities: burning

Harms plants.
|| soil erosion plant pollen animal dander || ===allergies=== || vapors from gasoline stations, fumes from cars + sunlight || Chemical reactions with air pollutants in atmosphere + sunlight || ===Breathing problems===
 * ===Particulate Matter=== || Solids in the air || smoke
 * ===//**Pollutant Gases**//=== || The unusual trace gases added to the air by humans and natural events like volcanic eruptions that end up having harmful effects on the planet. ||  || === === ||
 * ===Carbon Monoxide=== || CO || Burning || ===Reduces blood's ability to take oxygen to cells.=== ||
 * ===Nitrogen Dioxide=== || NO2 || Burning fossil fuels || ===Breathing problems, damages lungs, causes acid rain=== ||
 * ===Ground Level Ozone=== || formed in photochemical smog

asthma, eye irritation
|| Volcanic Eruptions || ===Breathing problems, lung damage, acid rain=== ||
 * ===Sulfur Dioxide=== || SO2 || Burning fossil fuels
 * ===CFC=== || dense gases used in modern cooling systems || Man Made: in air conditioners, refrigerators, freezers || ===rises high in the atmosphere to stratosphere to destroy good ozone layer=== ||