Conduct a blood spatter analysis to re-create a violent event.
DefinitionActivity should include
- simulated blood
- list of patterns to create
- trigonometry table for verification of angle of movement of blood drops.
- Why is it important to reconstruct a violent event?
- How can trigonometry be used to determine the angle at which blood interacted with a surface?
Related Standards of Learning
The student will demonstrate an understanding of scientific reasoning, logic, and the nature of science by planning and conducting investigations in which
- observations of living organisms are recorded in the lab and in the field;
- hypotheses are formulated based on direct observations and information from scientific literature;
- variables are defined and investigations are designed to test hypotheses;
- graphing and arithmetic calculations are used as tools in data analysis;
- conclusions are formed based on recorded quantitative and qualitative data;
- sources of error inherent in experimental design are identified and discussed;
- validity of data is determined;
- chemicals and equipment are used in a safe manner;
- appropriate technology including computers, graphing calculators, and probeware is used for gathering and analyzing data, communicating results, modeling concepts, and simulating experimental conditions;
- research utilizes scientific literature;
- differentiation is made among a scientific hypothesis, theory, and law;
- alternative scientific explanations and models are recognized and analyzed; and
- current applications of biological concepts are used.
The student will investigate and understand that experiments in which variables are measured, analyzed, and evaluated produce observations and verifiable data. Key concepts include
- designated laboratory techniques;
- safe use of chemicals and equipment;
- proper response to emergency situations;
- manipulation of multiple variables, using repeated trials;
- accurate recording, organization, and analysis of data through repeated trials;
- mathematical and procedural error analysis;
- mathematical manipulations including SI units, scientific notation, linear equations, graphing, ratio and proportion, significant digits, and dimensional analysis;
- use of appropriate technology including computers, graphing calculators, and probeware for gathering data, communicating results, and using simulations to model concepts;
- construction and defense of a scientific viewpoint; and
- the use of current applications to reinforce chemistry concepts.
The student will investigate and understand the interrelationships among mass, distance, force, and time through mathematical and experimental processes. Key concepts include
- linear motion;
- uniform circular motion;
- projectile motion;
- Newton’s laws of motion;
- planetary motion; and
- work, power, and energy.