Serial dilutions are a very useful method for students to learn. It is a standard method for testing for toxicity and can be adapted for investigating the effect of a pollutant on the germination and growth of seeds. Just remember that although this method can be used on invertebrates, this wouldn"t be considered ethical in accordance with the IB"s animal testing guidelines.Cornell has some useful guidelines and suggestions...

To access the entire contents of this site, you need to log in or subscribe to it.

Click the free stuff button on the home page to access free pages or check the blog (which is also free)