Science

AIM: The Aim could be: What we want to investigate the effect of different types of effect on heart rate. In our class we are learning about active schools. An active school is where they encourage kids to do more exercise, and how it is on the effect of heart rate. That is where our class got the question. EQUIPMENT: - Cones - Student - Judge - Stop watch - Excel - Recording sheet - Field - Pen & paper HYPOTHESIS: A Hypothesis is an educated guess about how things work. If I am active for 15 minutes of cardiovascular exercise my heart rate will be 1500 beats. METHOD: 1: Gather equipment. 2: Set up cones in a rectangular. 50ms x 100ms. (Judge) 3: Take resting heart rate. Refer to and record. 4: Tell everyone to get ready to go outside. 5: Then go line up and walk over to where you are running. 6: Wait there till the teacher or judge says you can run. 7: Keep running until they say you can stop. 8: When they say stop check your heart rate. 9: Then line up again and walk back to class. 10: When you get to class record your heart rate, maybe on excel. 11: When you finish that sit on the mat or line up. 12: Go back out and try it again and see if your heart rate changes. DIAGRAM OF THE HEART: HOW TO TAKE A HEART RATE: Take your pulse while you are active. Take it again, within a second or two after stopping. HOW THE HEART WORKS: The heart is actually a muscle that works like a pump in distributing blood throughout the body. The heart has four chambers. The two at the top are the left and right atria and the two at the bottom are the left and right ventricles. Blood vessels lead in and out of these chambers. The chambers have to contract (squeeze) in the correct order for the heart to pump blood correctly with each heartbeat. 
 * Use your index and middle fingers. Do not use your thumb, which has a pulse of its own.
 * Place them on your wrist, just above the base of the thumb.
 * Or place the tips of the fingers on your neck, just on either side of the Adam's apple. Do not press too hard on the neck or you may feel dizzy or light headed.
 * Count the number of beats for 15 seconds. Multiply this number by 4 to get your heart rate in beats per minute.