# CTE Resource Center - Verso - Forensic Technology Task 1053453292

CTE Resource Center - Verso

Virginia’s CTE Resource Center

Describe the difference between presumptive testing and confirmatory testing.

Definition

Description should include the definitions of
  • presumptive testing—chemical analysis of a sample that establishes the possibility that a substance is present
  • confirmatory testing—identification of the specific substance through further chemical analysis.

Process/Skill Questions

  • What are the differences between each test?
  • When are presumptive and confirmatory tests conducted?
  • Why is it necessary to conduct confirmatory tests on substances?
  • What methods are used to test substances?

Related Standards of Learning

English

11.8

The student will analyze, evaluate, synthesize, and organize information from a variety of credible resources to produce a research product.
  1. Critically evaluate quality, accuracy, and validity of information.
  2. Make sense of information gathered from diverse sources by identifying misconceptions, main and supporting ideas, conflicting information, point of view or bias.
  3. Synthesize relevant information from primary and secondary sources and present it in a logical sequence.
  4. Cite sources for both quoted and paraphrased ideas using a standard method of documentation, such as that of the Modern Language Association (MLA) or the American Psychological Association (APA).
  5. Define the meaning and consequences of plagiarism and follow ethical and legal guidelines for gathering and using information.
  6. Demonstrate ethical use of the Internet.

12.8

The student will analyze, evaluate, synthesize, and organize information from a variety of credible resources to produce a research product.
  1. Frame, analyze, and synthesize information to solve problems, answer questions, and generate new knowledge.
  2. Analyze information gathered from diverse sources by identifying misconceptions, main and supporting ideas, conflicting information, point of view, or bias.
  3. Critically evaluate the accuracy, quality, and validity of the information.
  4. Cite sources for both quoted and paraphrased ideas using a standard method of documentation, such as that of the Modern Language Association (MLA) or the American Psychological Association (APA).
  5. Define the meaning and consequences of plagiarism and follow ethical and legal guidelines for gathering and using information.
  6. Demonstrate ethical use of the Internet.

Science

BIO.1

The student will demonstrate an understanding of scientific reasoning, logic, and the nature of science by planning and conducting investigations in which
  1. observations of living organisms are recorded in the lab and in the field;
  2. hypotheses are formulated based on direct observations and information from scientific literature;
  3. variables are defined and investigations are designed to test hypotheses;
  4. graphing and arithmetic calculations are used as tools in data analysis;
  5. conclusions are formed based on recorded quantitative and qualitative data;
  6. sources of error inherent in experimental design are identified and discussed;
  7. validity of data is determined;
  8. chemicals and equipment are used in a safe manner;
  9. appropriate technology including computers, graphing calculators, and probeware is used for gathering and analyzing data, communicating results, modeling concepts, and simulating experimental conditions;
  10. research utilizes scientific literature;
  11. differentiation is made among a scientific hypothesis, theory, and law;
  12. alternative scientific explanations and models are recognized and analyzed; and
  13. current applications of biological concepts are used.

CH.1

The student will investigate and understand that experiments in which variables are measured, analyzed, and evaluated produce observations and verifiable data. Key concepts include
  1. designated laboratory techniques;
  2. safe use of chemicals and equipment;
  3. proper response to emergency situations;
  4. manipulation of multiple variables, using repeated trials;
  5. accurate recording, organization, and analysis of data through repeated trials;
  6. mathematical and procedural error analysis;
  7. mathematical manipulations including SI units, scientific notation, linear equations, graphing, ratio and proportion, significant digits, and dimensional analysis;
  8. use of appropriate technology including computers, graphing calculators, and probeware for gathering data, communicating results, and using simulations to model concepts;
  9. construction and defense of a scientific viewpoint; and
  10. the use of current applications to reinforce chemistry concepts.

PH.1

The student will plan and conduct investigations using experimental design and product design processes. Key concepts include
  1. the components of a system are defined;
  2. instruments are selected and used to extend observations and measurements;
  3. information is recorded and presented in an organized format;
  4. the limitations of the experimental apparatus and design are recognized;
  5. the limitations of measured quantities are recognized through the appropriate use of significant figures or error ranges;
  6. models and simulations are used to visualize and explain phenomena, to make predictions from hypotheses, and to interpret data; and
  7. appropriate technology including computers, graphing calculators, and probeware is used for gathering and analyzing data and communicating results.

Other Related Standards

ITEEA National Standards

1. The Characteristics and Scope of Technology

 

13. Assess the Impact of Products and Systems

 

TSA Competitive Events

Biotechnology Design

 

Technology Problem Solving