Marshall

April 13, 2009.

1) This week in science we studied the periodic table and how it was and is organized. Whilst doing this, we learned how to find nuetrons, protons the atomic mass, and the atomic number. We learned the difference between metals, non-metals and metalloids and their individual properties. Using the information gathered by doing that, we were able to successfully construct Bohr Models of different elements from the Periodic Table.

April 16, 2009

2) This week we lerned about many historical figures and their previous contributions to the periodic table and the way it was formed. Some of the scientists that contrubuted were Dmitri Mendeleev, and several greek philosepher. Philosephers are just smart greek people. We learned to think of atoms like plum pudding. The nuetrons and protons are randomly placed throughout a atom.

April 23, 2009

3) This week we studied the conservation of matter. We learned that matter can not be created nor destroyed, it can only change forms. we learned about kinetic energy and potential energy. We did a lab in which we created an explosive reaction between vinegar and baking soda, recorded the results, and discovered the subject weighed the same.