Equipment used in baseball includes baseball gloves, bats, balls, batting helmets, and uniforms. Baseball bats are made of wood or polymers and are used to hit the ball. They must be less than 33 ounces and 2.75 inches in diameter. Batting helmets made of hard polymers protect batters' heads from getting hurt if the ball hits them. Polymer composite materials that are 85-100% fiberglass are also used to make baseball bats lighter and stronger. Polymers are also used in batting helmets and for surfaces of football fields and outdoor tracks.

1. Polymers In Sports-Baseball- -Chelza Jalapadan – -Period : 7/8-

2. Equipment used in Baseball Equipment ; baseball glove baseball bats baseball baseball batting helmet uniforms http://www.baseballwarehouse.com/ http://www.iunredhawkathletics.com/images/2009-10/Baseball/51230.jpg

3. 2 equipment Baseball bat it is used to hit the ball . http://en.wikipedia.org/wiki/Baseball_bat Baseball batting helmet is used so if the ball comes and hit you in the head it wont hurt you as much if you don't have a helmet on. http://en.wikipedia.org/wiki/Batting_helmet http://images.clipartof.com/small/31329-Clipart-Illustration-Of-A-Baseball-Resting-By-A-Wooden-Bat-And-A-Red-Helmet.jpg

4. Baseball Bat It is wooden and it is used to hit the ball in a baseball game. It is no more than 2.75 inches. It also weighs no more than 33 ounces. http://en.wikipedia.org/wiki/Baseball_bat http://www.arxmansports.com/wp-content/uploads/2008/04/baseball-bats-what-is-your-choice.jpg

5. Polymers Baseball Bat The polymer composite baseball has a polymer composite material that includes between 85% and 100% fiberglass. http://www.patentstorm.us/patents/6723012.html http://tjsbaseball.10ers.com/Images/baseball_bat.jpg

6. Baseball Helmet It is worn for the batters so when the ball hits them in the head it wont hurt them. Roger Bresnahan created the first batting helmet. http://en.wikipedia.org/wiki/Batting_helmet http://www.jksports.com/jksports/Images/products/main/CFBH-2.jpg

7. Polymers Helmet Since it is hard it would protect the batters head if the ball hits them in the head. http://en.wikipedia.org/wiki/Batting_helmet http://www.gloveslingers.com/images/catalog/product_1136344923_bh510-03.jpg

8. polymer football field / outdoor track It helps the ground of the track and the field. http://upload.wikimedia.org/wikipedia/en/8/8e/Tioga_High_School_track_and_football_field_IMG_1091.JPG http://pubs.acs.org/doi/abs/10.1021/ed085p1323