About This Chapter
Praxis General Science: Science, Technology & Society - Chapter Summary
These lessons review how science and technology have impacted society. The short videos cover topics such as the applications of DNA technology, the effect of humans on the environment and ecological conservation. As you prepare for the Praxis General Science test, this chapter can help you do the following:
- Define renewable and nonrenewable resources
- Explain alternative energy and list sources
- Detail ways to improve water quality
- Examine the benefits and problems associated with the use of pesticides and household products
- Identify how common consumer products work
- Summarize communication technologies such as GPS, cellular and satellite
- Define nanotechnology
- Relate how science impacts public health issues
You will be led through these lessons by science experts who concisely convey the information. The content is presented in videos and transcripts so you may absorb the material in more than one format. After you finish each lesson, take the accompanying quiz, which will help gauge how well you comprehend what you've reviewed.
1. Renewable & Non-Renewable Resources: Definition & Differences
We use a variety of Earth's resources, but not all of them will be around forever. This lesson explains the difference between resources that can be regenerated for our use and those that are gone after they are used once.
2. Human Environmental Impact & Ecological Conservation
The Earth has only so much space for us and our non-human neighbors. In this lesson, we will learn about how humans impact the environment, what causes habitat fragmentation, and what ecological conservation can do to help.
3. What is Alternative Energy? - Definition & Sources
What is alternative energy? Alternative to what and why are people looking for alternatives anyway? Learn the answers to those questions in this lesson.
4. Water Treatment: Improving Water Quality
In this lesson, you will learn how water is purified for drinking, and how wastewater is treated before being put back into the environment. You will also learn about water purification issues in developing countries.
5. Use of Pesticides: Benefits and Problems Associated with Pesticides
Pesticides are used worldwide to manage agricultural pests. They kill and repel unwanted pests, but also cause many human deaths each year. This lesson explores the widespread use of pesticides in agriculture and compares the benefits and problems associated with these helpful but dangerous chemicals.
6. Chemicals Found in Household Products
Chemicals sound scary, but they're all around us. Learn about some of the most common household chemicals and how they're used. Demonstrate what you've learned with a quiz.
7. How Common Consumer Products Work
What are consumer products? How do they work? In this lesson, we will learn about some popular consumer products including cars, smart phones and stoves. Test your knowledge after the lesson with a quiz.
8. Communication & Wireless Computing Devices: GPS, PDA, Cellular & Satellite
A large number of different devices use wireless communications networks. Learn about the different types of devices and which communication signals they use.
9. Nanotechnology: Definition, Applications & Examples
In this lesson, we will learn about nanotechnology. We will define nanotechnology and what makes this technology so revolutionary. We will also examine some applications and examples of nanotechnology.
10. Practical Applications of DNA Technology
DNA technology is a field that has many applications for our everyday lives. In this video lesson, you will learn about some of the important contributions of DNA technology to industries such as medicine, agriculture and criminal investigation.
11. How Science Impacts Public Health Issues
This lesson is going to go over the ways by which science has impacted public health issues in areas of nutrition, disease, and medical technologies. You'll learn with several concrete examples how this is the case.
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Other chapters within the Praxis General Science (5435): Practice & Study Guide course
- Praxis General Science: Methodology, Techniques & History
- Praxis General Science: Matter
- Praxis General Science: Thermodynamics
- Praxis General Science: Periodicity
- Praxis General Science: States of Matter
- Praxis General Science: Bonding & Structure
- Praxis General Science: Chemical Reactions
- Praxis General Science: Acid-Base Chemistry
- Praxis General Science: Solutions & Solubility
- Praxis General Science: Mechanics
- Praxis General Science: Motion & Forces
- Praxis General Science: Magnetism & Electricity
- Praxis General Science: Optics & Waves
- Praxis General Science: Basic Structure & Functions of Cells
- Praxis General Science: Cell Reproduction & Division
- Praxis General Science: Basic Biochemistry of Life
- Praxis General Science: Basic Genetics
- Praxis General Science: Theory & Key Mechanisms of Evolution
- Praxis General Science: Hierarchical Classification Scheme
- Praxis General Science: Plant Structures & Functions
- Praxis General Science: Basic Anatomy & Physiology
- Praxis General Science: Key Aspects of Ecology
- Praxis General Science: Physical Geology
- Praxis General Science: Historical Geology
- Praxis General Science: Earth's Bodies of Water
- Praxis General Science: Meteorology & Climate
- Praxis General Science: Astronomy
- Praxis General Science Flashcards