Mrs. Allison's Science 2016-2017

Be able to tell what an element, compound, and mixture are.  Be able to read and tell how many atoms are in a compound. (Ex. CO2-This means the element has 1 carbon atom and 2 oxygen atoms) Know at least 5 compound and their chemical formulas (Ex. NaCl is sodium chloride, H20 is water) Students must know the 5 separation techniques and how to use them. They are settling, filtration, magnetic attraction, evaporation, and chromotography. What is the difference between homogeneous and heterogeneous mixtures. Be able to tell which is the solute and solvent in a solution. What 3 things affect the rate of solubility? Students must know elements combine to make many different substances in the world.  How to read/interpret a solubility graph. What is the "universal" solvent? How does pressure affect the solubility of a liquid-gas solution? Be able to name 3 elements and their chemical symbols. Study all vocabulary, handouts from class, and notes taken in class. 

Next week we are beginning the study of elements and compounds. Students will be able to explain how a small number of naturally occuring elements can result in the variety of substances found in the world. Studentst will also be able to classify substances as elements or compounds. There are between 88-92 naturally occuring elements on Earth These elements form many different molecules and compounds, like H20 and CO2 2 or more elements combine chemically to form compounds C + O + O = CO2 (carbon dioxide) H + H + O = H20 (water) Na + Cl = NaCl (sodium chloride-table salt) There are a huge number of possible combinations of elements to form compunds and mixtures ELEMENTS-pure substances that make up all matter, cannot be separated  Elements are organized inthe periodic table. Each element has its own symbol. Some elements and symbols students should know and be familiar with: Carbon (C), Hydrogen (H), Oxygen (O), Iron (Fe), Nitrogen (N), Sodium (Na), Argon (Ar), Helium