
Students trace food sources, diagram environmental impacts, and apply the knowledge they gain by making changes in some of their consumer choices.
Teacher Planning
Subjects: Social Studies, Language Arts. Science, Home Economics, Vocational Agriculture
Skills: analysis, application, classification, comparing similarities and differences, discussion, drawing, evaluation, media construction, problem-solving, synthesis, visualization, writing (limited)
Duration: one to three 45-minute periods
Group size: any
Setting: indoors
Conceptual Framework Reference: ID.. 1 111.8.1., 1113.2., IV.C.. V.A., V.4. V V.8.1., VIA.. Vl.A.2., Vl.A.3., Vl.A.4., VI.B.. Vl,B1., Vl.B.2., Vl.B.3., VI.C.. Vl.C.16.. Vl.D.. VI.D.1., VIl.A., VIl.A.1., Vll.A.2., Vll.A.3., Vll.A.4., VII,B., VIl.B.1., VIl.B,3.. VIl.B.7.
Key Vocabulary: organic, inorganic, source, renewable, nonrenewable, impact
Materials: writing and drawing materials
Background
NOTE: Especially for younger students, this activity makes a nice summary companion to “What’s For Dinner?”
Most of us make lifestyle choices each day that have some impact on wildlife and the environment. Many of those impacts are indirect, and therefore we are not as aware of them as we might be. The choice of foods we eat, for example, is an area with many implications for wildlife and the environment.
The places and ways in which foods are grown has impact. For example, we know that loss of habitat is one of the most critical problems facing wildlife. Habitat may be lost to agricultural use or development as well as to industrial, commercial and residential uses. Given that people need food, the ways in which we grow that food
—and the ways we care for the land in the process—are very important. Farmers can take measures to maintain and improve wildlife habitat as they grow and harvest their crops.
They can pay attention to the impact of their growing practices. Both inorganic and organic fertilizers are commonly used in industrial agriculture. These compounds may run off or leach into water supplies. In lakes, for example, this run-off may contribute to a huge increase in the growth of plant nutrients such as algae.
This excess growth can act as a pollutant, poisonous to aquatic animal life such as fish, amphibians. arthropods, and insects.
Use of insecticides and herbicides also affects the environment, including wildlife. Obviously, if pesticides kill and eliminate the food source for wildlife, the wildlife either leaves or dies. Indirect effects can include accumulation of such pesticides in the bodies of animals—as in predatory birds, fish, and mammals, including people.
Not all of the impact is due to some farmers’ practices however. Certainly, the transportation processing, packaging, anti marketing industries are involved as well. Questions about the natural resources involved in getting the food from its source of origin to the consumer are critically important. One example is increased exploration for and development of fossil fuels used to transport the food from growing site to consumer, used often to fuel the processing, and frequently used in the packaging, as in the case of fossil fuel-derived plastics.
Ethical considerations can also be raised concerning the impact upon individual animals and plants by the methods used to produce food for people, as well as choices of which foods to eat. If the students have concern about adopting lifestyle habits that can be healthful to them selves at the same time they have less impact on wildlife and the environment, they can look at the food they eat as one place to begin. The major purpose of this activity is to provide a means for students to begin that process.
Trace the possible course of a container of milk served n your school back to its probable source.
What impact does this journey have on wildlife?
Name three food habits that could reduce negative impacts to wildlife and the environment. Explain the reasoning behind your suggestions.