Welcome Miss Brawley

DO NOW On a sticky note, write your best definition of a molecule. Place your sticky note on the dry erase board.

TURN IN FLINN CONTRACT

SUPPLY CHECK

The Scientific Method Observation  Hypothesis/ Inference  Design Experiment  Collect/Analyze Data  Conclusions  Develop Theory

Bouncy Ball Will it bounce higher on the rug or the tile floor?

Constant- keep everything the same except… Variable- pick ONE thing to change Independent? Dependent?

Food Coloring Experiment Does food coloring spread faster in cold or hot water? Keep it constant except for one thing- water temperature. What do we need to keep constant if we are altering water temperature? What are our independent/dependent variables?

Form your hypothesis! In which water temperature will the dye move the fastest?

Let’s TEST that hypothesis!

What is “life”? What does it mean to be living?

Characteristics of Living Things: Made up of basic units called cells Based on a universal genetic code Obtain and use materials and energy Grow and develop Reproduce Respond to their environment Maintain a stable internal environment Change over time

Work on the Chapter Review Questions on Pages 30-31 This should be done silently and individually

Chapter 2 (ToC) The Chemistry of Life

Atoms, Molecules, Compounds, OH MY!

What is an atom? The basic unit of matter

What is a molecule? Two or more atoms bonded together The atoms can be the same or different The smallest unit of most compounds

What is a compound? A substance formed by the chemical combination of two or more elements in definite proportions. A molecule that contains AT LEAST two different elements All compounds are molecules, not all molecules are compounds

Tickets

Name Game Get in a circle Throw the ball to someone who has not received it yet. You must say their name before you throw it. The person receiving the ball must say “Thank you, ____” and then call someone else's name and so forth.

3 Random Facts…

Connection!