1.  Benchmark SC.8.P.8.5  Recognize that there are a finite number of elements and that their atoms combine in a multitude of ways to produce compounds that make up all of the living and non- living things that we encounter  SC.8.P.8.8  Identify basic examples of and compare/classify the properties of compounds, including acids, bases, and salts. Combination of elements to form compounds

2. Bellringer: 3 minutes!

3. Compounds two or more elementschemically combined A compound is a substance which is made up of two or more elements that have been chemically combined together. Elements chemically combined? What do you mean?

4. Put the two together = sodium chloride!! Table Salt, a perfectly safe, edible compound Sodium- is a soft silvery white metal that reacts violently with water Compounds Chlorine-is a poisonous, greenish yellow gas. + Sodium chloride (table salt) Table salt is made out Sodium and Chlorine. Cannot be separated by physical means! It is different to Sodium and different to Chlorine!

5. A compound… two or more elementschemically combined.  Is a substance which is made up of two or more elements that have been chemically combined.  Can be chemical means  Can be broken down into a simpler type of matter (elements) by chemical means (but not by physical means).  Has properties different elements.  Has properties that are different from its component elements. Ex: In a water molecule Hydrogen and Oxygen are gases but when they combine together they form a liquid. same ratio  Always contains the same ratio of its component atoms. Ex: In a water molecule there are 2 Hydrogen atoms per every Oxygen atom (H2O). And in a peroxide molecule there are 2 Hydrogen atoms per every 2 Oxygen atoms. Let’s check!

6. What is a compound? Cu Is this a compound? It only contains one type of element. Is this a compound? H H H H O O O It is not chemically combined. Why not? two or more elementschemically combined A compound is a substance which is made up of two or more elements that have been chemically combined together. H It only contains one type of element. O H H O H H O H H Yes! Is this a compound?

7. Examples of compounds ACIDS taste sour and turn blue litmus paper red. BASES feels slippery and turns blue litmus paper darker blue.

8. Acids and Bases

9. Hands on time!

10. Challenge Time Answer the 5 FCAT like questions on your own!