Your young physicists analyze the forms of four equivalent exponential expressions representing an amount of a radioactive material in a substance. They show how each expression is equivalent to the others and what aspects of the decay...

A series of math and science activities feature M&M's® as manipulatives to help kids work through equations. The resource includes exercises on finding averages, percent of compositions, moles in chemical reactions, genotypes and...

Based on the principle of antibody-antibody interaction, this ELISA test for HIV detection allows for easy visualization of results and can be completed without the additional concern of radioactive materials use.