meiosis - cell division necessary for sexual reproduction in eukaryotes, such as animals, plants and fungi. The number of sets of chromosomes in the cell undergoing meiosis is reduced to half the original number, typically from two sets (diploid) to one set (haploid). The cells produced by meiosis are either gametes (the usual case in animals) or otherwise usually spores from which gametes are ultimately produced (the case in land plants).
Gas Laws Manipulative - something I learned from another AP chemistry teacher years ago. Continuing the tradition of instructional sharing - I passed on the trick to a group of chemistry teachers today. Cover the variable that is constant (in the problem) and observe the relationship between the other two variables. #chemistry
Force & Motion worksheets for middle school students include interpreting data, calculating speed and average speed, and analyzing motion graphs. Created for an introduction to force & motion. Modified versions are available. Visit Jodi's Jewels today!