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Transcript
Unit 1: Engage Review Also: Testing Norms and Procedures Testing Norms and Procedures • Take your assessments seriously • Tests/Exams/Quizes start at the beginning of the block – No time for questions – No extra time will be given if you cannot make it to class on time • Let me know of any accommodations • Standard expectations – No talking – Raise your hand if you have a question, etc.. • Be sure to turn in your review questions Scientific Method Notes and Practice Questions • • • • • • • • Review Quiz #1 Manipulated Variable Responding Variable Hypothesis Rational Control Variables Experimental Groups Control Groups Lab 1-1: Roly Poly’s • Carrying out the scientific process • Scientific Process – Observe carefully – Question / Hypothesis – Experiment and collect data – Look for Patterns – Draw conclusions Lab 1-2: Becoming a Keen Observer • Apple Lab • Carefully observation – Qualitative – Quantitative • Observation vs. Inference Journal 1-1: Lucy and Journal 1-2: Modeling Earths History • Organisms have changed over time • Earth is really, really old • Scientists have built a historical timeline by following the process of science. – Careful observation of fossils – Logical Inference Journal1-3: Learning about Natural selection • How do organisms change over time? – Natural Selection • Key point: Natural Selection acts on populations not individuals. • OCVSRS = natural selection – Be able to relate to other scenarios – Natural vs. artificial selection Lab 1-3: Bacterial Antibiotic Resistance • Key Point: Bacteria have resistance to antibiotics. (Not the other way around) • Variation exist within bacterial species – Ex. E. Coli = species Ability to grow in the presence of antibiotic = variation • Variation arises through random mutation – Mutations are not responses to the environment Journal 1-4: Evolution in Action • O = bacterial populations grow exponentially • C = bacterium are limited by space and available food • V = some bacteria have antibiotic resistance • S = in the presence of antibiotics, resistant bacteria survive • R = surviving bacteria reproduce – making a resistant strain – Causing antibiotic to be ineffective Journal 1-5: White Clover • Real world example of Evolution by natural selection and the scientific process – Populations of clover evolve not individual clovers