This is a collection of worked general chemistry and introductory chemistry problems, listed in alphabetical order.
I have included printable pdf chemistry worksheets so you can practice problems and then check your answers.
I will be adding to this sheet constantly throughout the year so check back often.
You may e-mail me for answer keys just be prepared to prove you're really a teacher!
You Tube Video on why the Reference Tables are soooo important.
You Tube Video showing how density changes as you change the volume of a pillow You Tube Video of measuring the density of a chocolate bar.
The World is Flat- An entire lecture designed to convince students that the world is flat.
A Hundred Proofs that the Earth is not a Globe Making Isolines PPT Lab 1-4 PPT Making a topographic map of a section of the Earth (see You Tube video to the right).
Vocabulary Words Worksheet on Sedimentary Rocks Worksheet on the Rock Cycle Percent Deviation on Rocks Igneous Worksheet I Igneous Worksheet II Igneous Worksheet III Quartz DBQ Minerals DBQ Metamorphic Rocks Chemical Composition chart Metamorphic Rock Scheme PPT Sedimentary Scheme PPT Cookie Lab- a great review of rock types (and video) To avoid students taste-testing for Halite, I inform them that I have been specifically bred with genetic enhancements to be the ultimate Earth Science Teacher.
As such, I have taste buds in my finger tips which allows me to do a taste-test on minerals without the danger of swallowing anything dirty.
If a student suspects a mineral is Halite, they give it to me.
I roll it between my fingers, smack my lips a few times and tell them if it tastes salty or not.
(The key, of course is to be able to spot the cubic cleavage of Halite as opposed to the rhombihedral of Calcite and Gypsum.) I also prepare a CLEAN sample of Halite, bash it into tiny pieces before their eyes (on a CLEAN paper towel and invite them to taste it.