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Science Education - Environmental Sciences

Environmental Science

Tree Identification: How To Use a Dichotomous Key12:06

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 ...

81276 views
Tree Survey: Point-Centered Quarter Sampling Method10:24

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 ...

49430 views
Using GIS to Investigate Urban Forestry10:58

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 ...

12652 views
Proton Exchange Membrane Fuel Cells09:40

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 ...

22136 views
Biofuels: Producing Ethanol from Cellulosic Material07:34

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, ...

53286 views
Testing For Genetically Modified Foods12:45

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 ...

89828 views
Turbidity and Total Solids in Surface Water09:41

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 ...

35869 views
Dissolved Oxygen in Surface Water09:38

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 ...

55857 views
Nutrients in Aquatic Ecosystems10:48

Nutrients in Aquatic Ecosystems

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

38943 views
Measuring Tropospheric Ozone07:49

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 ...

26461 views
Determination Of NO,[object Object], in Automobile Exhaust Using UV-VIS Spectroscopy09:54

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 ...

30148 views
Lead Analysis of Soil Using Atomic Absorption Spectroscopy09:40

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, ...

125569 views
Carbon and Nitrogen Analysis of Environmental Samples10:41

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 ...

29494 views
Soil Nutrient Analysis: Nitrogen, Phosphorus, and Potassium13:31

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, ...

216003 views
Analysis of Earthworm Populations in Soil07:03

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 ...

16520 views
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