Science - 2018-19
CH.1 a-c, i-j - Scientific Investigation
The student will investigate and understand that experiments in which variables are measured, analyzed, and evaluated produce observations and verifiable data. Key concepts include
a) designated laboratory techniques;
b) safe use of chemicals and equipment;
c) proper response to emergency situations;
i) construction and defense of a scientific viewpoint; andj) the use of current applications to reinforce chemistry concepts.
- Science strives to answer questions about the world around us through systematic observation and measurement.
- I can safely do lab experiments.
- I can be prepared in an emergency.
- I can defend my research.
- I can show others how new compounds form.
UNDERSTANDING THE STANDARD
- Techniques for experimentation involve the identification and the proper use of chemicals, the description of equipment, and the recommended statewide framework for high school laboratory safety.
In order to meet this standard, it is expected that students will
a) demonstrate the following basic lab techniques: filtering, using chromatography, and lighting a gas burner.
identify the following basic lab equipment: beaker, Erlenmeyer flask, graduated cylinder, test tube, test tube rack, test tube holder, ring stand, wire gauze, clay triangle, crucible with lid, evaporating dish, watch glass, wash bottle, and dropping pipette.
make the following measurements, using the specified equipment:
- volume: graduated cylinder, volumetric
- mass: triple beam and electronic
- temperature: thermometer and/or
- pressure: barometer and/or pressure
b) demonstrate safe laboratory practices, procedures, and techniques.
understand Material Safety Data Sheet (MSDS) warnings, including handling chemicals, lethal dose (LD), hazards, disposal, and chemical spill cleanup.
c) identify, locate, and know how to use laboratory safety equipment, including aprons, goggles, gloves, fire extinguishers, fire blanket, safety shower, eye wash, broken glass container, and fume hood.
i) explain the emergence of modern theories based on historical development. For example, students should be able to explain the origin of the atomic theory beginning with the Greek atomists and continuing through the most modern quantum models.
j) summarize knowledge gained through gathering and appropriate processing of data in a report that documents background, objective(s), data collection, data analysis and conclusions.
a, b, c, d, e, f, g, h, i, j) make connections between components of the nature of science and their investigations and the greater body of scientific knowledge and research.
design and perform controlled experiments to test predictions, including the following key components: hypotheses, independent and dependent variables, constants, controls, and repeated trials.predict outcome(s) when a variable is changed.
chemistry, chromatography, conclusion, control, crystallization, dependent variable, distillation, experiment, filtration, hypothesis, material safety data sheet, scientific law, scientific method, surface tension, theory