I run to exercise my heart. I do it at school. I'm really fast. The proof I am fast is that I have two running medals. I run a lot. Sometimes I also run outside at my house. I also run or jog when we are going somewhere.

--William S.

Kate Waller Barrett Elementary,

Mr. Reichard's class

To exercise my heart I like to sprint. I sprint at least two or three times a week. Sprinting helps my heart because when you go tremendously fast, it helps your heart to get sturdy, which lets blood stream more efficiently through your veins. Before I sprint I must stretch out my legs and arms. If I don't stretch I could have injuries. For instance, I could strain my muscles or ligaments. First, I regularly do 15 to 20 lunges and high knees. I do one circuit of jogging, then it's time to hit the sprints.

--Tami Owolabi, fourth grade

Kate Waller Barrett Elementary,

Ms. Heaney's class

I love to run a lot with my dog, Oreo. Sometimes we go in the back yard and play fetch or tag. That keeps my heart going. Whenever I run the Great Train Race, that also keeps my heart going. At home when I'm bored, I go outside and run a few laps or ride my bike or scooter at the park. While I keep my heart going, I have fun.

--Emma R., fourth grade

Hartwood Elementary School,

Mrs. Lausten's class

I like to play sports to get my heart thumping. Example: field hockey, soccer, football, dodge ball, basketball, relay races, capture the flag, roller skating, roller blading and biking. Roller coasters really get your heart thumping, especially the upside down ones. The video game system Wii also gets your heart thumping. I also like to do the basics. Example: aerobics, toe touches and jumping jacks. That is what gets my heart thumping.

--Elissa Bustamante, fourth grade

Ferry Farm Elementary School,

Mrs. Covert's class

Exercise your heart! You want to get your heart pumping? Well, you came to the right place. If it's hot outside, run in your yard until you have had enough. But first I would stretch. Now, if it's cold outside I would speed walk everywhere I could go. Wait! Stop! Don't break anything. Don't forget to drink water and eat healthy. When running in yard watch out for dog droppings.

--Zoe M., fourth grade

Park Ridge Elementary School,

Ms. Greene's class

The thing I like to do to exercise my heart is to run track. Usually on P.E. days we go run track. I always run about three or four laps.

--Tyler Wichowski, fourth grade

Rocky Run Elementary School,

Mrs. Jarrell's class