| A | B |
|---|
| matter | anything that takes up space |
| element | a substance that cannot be broken down into other substances by heat, light or electricity |
| Antoine-Laurent Lavoiser | 1st person to publish a list of elements |
| 1. METALS - gold, silver & 2. NONMETALS - oxygen, nitrogen | How are elements classified? |
| Dmitri Mendeleev | created the periodic table |
| Periodic Table | a chart that classifies elements by their properties |
| atom | smallest part of an element |
| nucleus | center if an atom |
| proton | POSITIVE (+) electrical charge in an atom |
| neutron | has NO CHARGE (0) |
| electron | has a NEGATIVE (-) electrical charge in an atom |
| molecule- draw example of 2 oxygen atoms | 2 or more atoms joined together |
| compound - draw example of H20 & CO2 | substance made up of atoms of more than one element joined together in a molecule |
| one element is mixed with another | element properties change when ...... |
| New Material - TABLE SALT | Sodium (silver metal that reacts with water) & Chlorine (poisonous gas) together form - |
| Fleece wear pants, Inline skates, weather proof jacket, sunglasses | New Materials made from elements: |
| mixture | 2 or more substances that are mixed together; easily separated - ex. fruit salad, sand iron & water |
| fruit salad | example of mixture |
| solution | mixture in which substances break up into their most basic particles. NOT EASILY SEPARATED ex. carbronated water; lemonade |
| lemonade; carbonated water | examples of solutions |
| physical property | characteristic of an object that you can observe with your senses ex. color, shape, taste, texture, odor, size, hardness, elasticty melting point. magnetic |
| color, shape, taste, texture, odor, size, hardness, elasticity, melting point & magnetic | exaples of physical property |
| physical change | change in one or more physical properties ex. peanut butter, paper shaped into a bird, melting ice, freezing ice |
| peanut butter, paper shaped into a bird, melting ice, freezing ice | examples of physical change |
| chemical property | describes teh way a substance reacts with other substances ex. wood reacts with oxygen to form carbon dioxide, ash & water, fools fold ( pyrite) reacts with sulfar to form a gas |
| wood reacts with oxygen to form carbon dioxide, ash & water, fools fold ( pyrite) reacts with sulfar to form a gas | examples of chemical property |
| chemical change | change that produces new substances with new properties ex. cake batter bakes to make a cake, tomatoe ripening |
| cake batter bakes to make a cake, tomatoe ripening | example of chemical change |
| chemical reaction | processes that are different ex. baking soda & vinegar bubbles seen & gas is formed, rust - new substance |
| baking soda & vinegar bubbles seen & gas is formed, rust - new substance | examples of chemical reaction |
| SNOW?????? | CRAZY WEATHER IN LATE MARCH!!!!! |
