Real experiments. Real Data. Real Graphs. -- After viewing this video students will know what a graph is, recognize the three most commonly used graphs in science - bar, line, and pie - and understand the 5-step process of making and using graphs in connection with scientific experiments. -- Real numerical data derived from real experiments is used to create a bar graph of the explosive growth of the human population from 0 AD to the year 2000. Boyle’s Law illustrates the use of the line graph. -- And the total number of species is estimated using a pie graph which dramatically demonstrates that almost 3/4 of the species of animals living on earth are insects! An excellent introduction to an intrinsic research tool. 39 minutes. |
