2. Which is Easier? O 1. Divide the squares into 4 piles of like colors O 2. Number each square in each pile (1-10) O 3. Mix up the squares, make sure the numbered sides are facing up O 4. Have partner 1 name a square by color and number. O 5. Have partner 2 find that square. Repeat steps 4-5 twice (you may switch roles) O 6.Rearrange the squares into four rows, one for each color. Order the squares in each row from 1-10 O 7.Repeat steps 4-5 four times (you may switch roles) O Which was easier? Which method took less time? O Why were the times different? O Why did you do this activity?

3. Look around in your science classroom… do you recognize squares set together in this same way ? What is it called!?

4. Sure, it’s the Periodic Table… But do you really know what each of those squares represent? …And do you really know why those squares …And do you really know why those squares are set the way they are? are set the way they are?

5. Each square represents an element. What is an ELEMENT ?

6. Examples of familiar elements include… ALUMINUM SULFUR NITROGEN (in liquid state)

7. Each square represents an element. Examples of familiar elements include… URANIUM MERCURY COPPER

8. Each square represents an element. Examples of familiar elements include… SODIUM SILVER CARBON

9. BEFORE scientists began to sort out the elements, what was thought was much different than today. For hundreds of years, even until the late 1700’ s, people believed that there were FOUR PRIME ELEMENTS that made up all things that existed.

11. Well, it’s been only a little over 200 years since a few certain scientists began to classify and organize the elements that were known at that time. AntoineLavoisier JohannDöbereiner AlexandreBéguyer JohnNewlands 1743-1794 1780-1849 1820-1886 1837-1898

12. 1834-1907

13. 1834-1907

14. 1834-1907

15. 1834-1907

18. The Periodic Table can be of thought of as just like looking at a map of the United States of America.

22. A METAL is any elementary substance that is crystalline when solid, and is also characterized by malleability, conductivity, and a unique luster. Some examples of METALS are… Magnesium Cobalt Cesium Titanium

23. A NONMETAL is any elementary substance NOT having the characteristics of metals. Some examples of NONMETALS are… Carbon Bromine Iodine Neon

24. A METALLOID is any element whose properties are intermediate or between those of metals and solid nonmetals. They are electrical semi-conductors. Some examples of METALLOIDS are… Tellurium Antimony Silicon Germanium

25.   Now, let’s take a look at the single squares that represent those elements.

26.   Now, let’s take a look at the single squares that represent those elements.

27.   Now, let’s take a look at the single squares that represent those elements.

28.   Now, let’s take a look at the single squares that represent those elements.

29.   Now, let’s take a look at the single squares that represent those elements.

30. So, what are the names of all the elements? Some of them are kind of wacky! Here’s a song that can help you learn their names!

31. So, what are the names of all the elements?

34. SOURCE