1. Introduction to Safety, Chemistry, & Matter Safety, chemistry, and mass versus weight

2. Safety!!! What is wrong with the following pictures?

8. Safe Practices!

9. Basic Lab Rules Keep spaces neat and tidy Never eat, drink, or smell anything without permission Walk, don’t run Don’t push or shove others Wear goggles and gloves Pull back loose hair Hot stuff looks the same as cold stuff!

10. Basic Lab Rules Get Ms. Parnell or Ms. Clippard if glass breaks or something spills immediately! Do not try to clean anything up by yourself!!! EVER!

11. Ways to Succeed! Stay organized! Write down ALL of your observations! (What do you see happening in front of you?) Communicate with your group Practice safe lab procedures!

12. Ways to Succeed! Stay organized! Write down ALL of your observations! (What do you see happening in front of you?) Some people have lost millions of dollars because they kept a sloppy notebook! Communicate with your group Practice safe lab procedures!

13. Bad notes! LeMonnier, French astronomer who gets no credit for the first sightings of the planet Uranus. His notes were so bad that he thought it was a comet. Discovery of Uranus is instead awarded to Herschel.

14. Good notes! Great Days in Science: Discovery of first Computer Bug. What else would you do but glue it into your notebook? Harvard Sept. 9, 1945

15. Chemistry and Matter Chemistry- The study of composition, structure, and properties of matter and changes they undergo.

16. Chemistry and Matter Chemistry- The study of composition, structure, and properties of matter and changes they undergo.

17. Chemistry and Matter Chemistry- The study of composition, structure, and properties of matter and changes they undergo. Chemical – any substance that has a definite composition (in terms of atoms that compose it)

18. Chemistry and Matter Chemistry- The study of composition, structure, and properties of matter and changes they undergo. Branches OrganicInorganic AnalyticalBiochemical PhysicalNuclear Theoretical

19. Chemistry and Matter Chemistry- The study of composition, structure, and properties of matter and changes they undergo. Branches OrganicInorganic AnalyticalBiochemical PhysicalNuclear Theoretical Scientific Roles Basic Research Applied Research Technological Application

20. Mass Versus Weight (are they the same?)

21. Weight – measure of the earth’s gravitational attraction for matter Mass – measure of the quantity of “matter” How would your weight change on the moon? On a mountain top? On the Sea floor?

22. Mass Versus Weight (are they the same?) Weight – measure of the earth’s gravitational attraction for matter Mass – measure of the quantity of “matter” How would your weight change on the moon? On a mountain top? On the Sea floor? Matter 1. Occupies space and has mass 2. Displays inertia (resistance to change in motion) What is not matter?

23. Mass Versus Weight (are they the same?) Weight – measure of the earth’s gravitational attraction for matter Mass – measure of the quantity of “matter” How would your weight change on the moon? On a mountain top? On the Sea floor? Matter 1. Occupies space and has mass 2. Displays inertia (resistance to change in motion) Law of Conservation of Matter – mass cannot be created nor destroyed