Catalyst – January 2(6), 2011 WAY BACK WEDNESDAY!!! 1. Which is more specific: a genus or a species? 2. Fill in the blanks using the following words: GENES, ENERGY, EVOLUTION, CELLS. You can just write the correct word. A.____________ are the basic unit of life B.New species and inherited traits are the product of __________________ C.__________________ are the basic unit of heredity D.Living organisms consume and transform _____________________

Catalyst – January 2(6), 2011 WAY BACK WEDNESDAY!!! 1. Which is more specific: a genus or a species? 2. Fill in the blanks using the following words: GENES, ENERGY, EVOLUTION, CELLS. You can just write the correct word. A.__________________ are the basic unit of life B.New species and inherited traits are the product of __________________ C.__________________ are the basic unit of heredity D.Living organisms consume and transform _____________________ CELLS EVOLUTION GENES ENERGY

Today’s Agenda  Catalyst  Grade Lab Safety Tests  Notes: Intro to Scientific Method  Journal Review  Library Skills (moved to tomorrow)  Exit Question

Today’s Objectives  SWBAT formulate questions from observations.  SWBAT formulate hypotheses from questions.  SWBAT use the scientific method to analyze a journal article.

Formulate 1 of the 12 Testing Power Words!  Example: Formulate an opinion about this issue and express it in a short paragraph.  Come up with  Plan  Create  Form

How do scientists come up with ideas for an experiment?  Do ideas just pop into their head randomly?  Yes…Sometimes.  Do people just hand them ideas to test?  Yea, occasionally  Do scientists have a method for coming up with experiment ideas?  YES!!!!!

What Scientists Do!  Scientists observe the world around them  They ask questions  They make hypotheses  They test them!

Copy into your notes!

Good Experimental Questions Key Point #1: A good experimental question asks why or how something happens. Must be specific Based on things you see about the world

Good Hypotheses Key Point #2: A good hypothesis is an educated, testable guess that answers a question. Educated means there is a reason for it Use the word “because” Testable means there is a way to prove it right or wrong

How to Test a Hypothesis Key Point #3: Scientists perform experiments in order to test hypotheses. Multiple experiments may be necessary to test a hypothesis Experiments may lead to more questions which lead to more experiments (like in your reading last night!)

Journal Article – PCBs  You will work with your group to analyze this journal article  You will turn in your answers on one piece of paper  We will discuss the journal Part by Part  Don’t look ahead! Stay on the correct Part!  Don’t write on the Journal Article

Exit Question 1. You observe that students in Ms. Stroh’s class get higher grades on their tests than the students in Mr. Bogard’s class. Write a question and testable hypothesis to explain this phenomenon. HW: Read sections