There isn't money left in most 2014-2015 science department budgets this late in the school year. For inexpensive chemistry lab ideas, buy my lab book Chemistry on a Budget for $20.56 at amazon.com or $23 at lulu.com. It will take a few weeks to get to you, so order now!
This book contains 13 labs using consumable materials purchased from local stores including Analysis of a Mixture, Paper Chromatography, and Coinium (using pennies to demonstrate half-life). There are two versions of each lab, one with a ten-question conclusion and one with directions for a full lab report. This way the teacher has the option! Each lab is two pages to allow for one two-sided handout.
This blog contains several past entries about Organic Chemistry (OC) and includes: OC – Alkanes, Alkenes & Alkynes on 05/21/2014; OC – Organic Compounds on 05/25/2014; OC – Chemical Reactions on 05/28/2014; and, a High School Lab Activity – Tie Dyeing on 06/01/2014.
At this time of year, you may be teaching about Nuclear Chemistry (which reviews Atomic Structure as well).
Past blog posts about Nuclear Chemistry (NC) include: Introduction to Nuclear Chemistry on 02/11/2015; and, NC – Part II (Fission, Fusion & Half-Life) on 02/18/2015.
Your textbook may mention the separation of the hydrocarbons of crude oil by Fractional Distillation.
You most likely have discussed and/or demonstrated a simple distillation in a set-up similar to this diagram on this page:
Here is a video of a laboratory set-up for distillation:
BTW, the liquid coming out of the condenser is called the distillate.
The distillation glassware may not be available for a full class laboratory. You may have enough for a demonstration but it may not be available at all. This might be a useful video to show your class.
Students studying Chemistry in college, especially those who are Pre-Med, will encounter this in Organic Chemistry.
Here is a 4-minute explanation of Petroleum Refining:
You may have discussed distillation earlier in the year along with other physical separations such as filtration and chromatography. It’s useful to point out topics previously discussed, and now being applied, in preparation for your Final Exam.
Remember, you can check out the Topic List to help you to find past Blog entries.
Have a good weekend!