1.7: Scientific Notation Tutorial with Practice Problems

http://www.fordhamprep.org/gcurran/sho/sho/lessons/lesson25.htm

1.7: Practice Problems with Answers

http://regentsprep.org/Regents/math/ALGEBRA/AO2/page5a.htm

Significant Figures Tutorial, Sample Problems, and Links

http://www.chem.sc.edu/faculty/morgan/resources/sigfigs/index.html

ADV 2.4: Sample Problem from Worksheet 120

2.4/2.5: Practice Worksheet with Answers

https://docs.google.com/document/d/1Sk2HrE044X9Se2mu5xlNHR043k5-4ZWT4ic_5T_h50M/edit

2.4/2.5: Practice Quiz

http://www.quia.com/pop/184568.html?AP_rand=891139385

2.3: Lab Equipment Quiz

Check out this quiz to help you identify some pieces of lab equipment!

http://www.sciencegeek.net/Chemistry/taters/labequipment.htm