Science Education - Environmental Sciences
Environmental Science

Tree Identification: How To Use a Dichotomous Key
Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University A dichotomous key is a tool that identifies items in nature, such as ...

Tree Survey: Point-Centered Quarter Sampling Method
A number of methods are available for sampling forest communities. Point-centered quarter is one such method. It is used to gather information on the ...

Using GIS to Investigate Urban Forestry
Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University Urban forests broadly include urban parks, street trees, landscaped ...

Proton Exchange Membrane Fuel Cells
Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University The United States consumes a large amount of energy – the current ...

Biofuels: Producing Ethanol from Cellulosic Material
Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University In this experiment, cellulosic material (such as corn stalks, leaves, ...

Testing For Genetically Modified Foods
Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University Genetic modification of foods has been a controversial issue due to debated ...

Turbidity and Total Solids in Surface Water
Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University Turbidity and total solids are related measurements addressing clarity of ...

Dissolved Oxygen in Surface Water
Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University Dissolved oxygen (DO) measurements calculate the amount of gaseous oxygen ...

Nutrients in Aquatic Ecosystems
Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University Nitrogen and phosphorus are essential plant nutrients found in aquatic ...

Measuring Tropospheric Ozone
Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University Ozone is a form of elemental oxygen (O3), a molecule of three oxygen atoms ...
![Determination Of NO,[object Object], in Automobile Exhaust Using UV-VIS Spectroscopy](https://cloudfront.jove.com/files/media/science-education/science-education-thumbs/10076.jpg)
Determination Of NO,[object Object], in Automobile Exhaust Using UV-VIS Spectroscopy
Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University In the troposphere, ozone is naturally formed when sunlight splits nitrogen ...

Lead Analysis of Soil Using Atomic Absorption Spectroscopy
Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University Lead occurs naturally in soil, in levels ranging from 10-50 ppm. However, ...

Carbon and Nitrogen Analysis of Environmental Samples
Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University Elemental Analysis is a method used to determine elemental composition of a ...

Soil Nutrient Analysis: Nitrogen, Phosphorus, and Potassium
Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University In this experiment, three soil macronutrients are chemically extracted, ...

Analysis of Earthworm Populations in Soil
Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University Using mustard, Lumbricus terrestris earthworm populations can be sampled ...