Heart smarts: Celebrate Valentine's Day with science activities that pump up students' heart knowledge.Our hearts beat nearly 100,000 times every single day--that's 2.5 billion times during an average lifetime. This amazing a·maze v. a·mazed, a·maz·ing, a·maz·es v.tr. 1. To affect with great wonder; astonish. See Synonyms at surprise. 2. Obsolete To bewilder; perplex. v.intr. muscle and organ never takes a break! Share the fun heart trivia below with students, then invite them to try the activities and experiments either with a partner or in small groups. Read aloud each heart fact before guiding students through the steps in each task. Then have them write and illustrate their observations, responses, and conclusions in heart-shaped journals. [ILLUSTRATION OMITTED] Heart Racing (Using the Repro) SCIENCE FACT: The heart pumps blood into the lungs to pick up oxygen, which it carries to all the cells in the body, enabling them to survive. ACTIVITY: Introduce this process with the game Reproducible on page 48. Give the game and colored candy hearts to pairs of students. When play is over, ask them to diagram and describe the path blood travels through the heart and lungs. [ILLUSTRATION OMITTED] Heart Trivia Share the following trivia about the heart with your students. Do they know any additional heart facts? [love] HANDY SIZE: The average heart is about the size of a fist and weighs 11 ounces (or 300 grams). [love] PUMP POWER: The heart pumps the blood on a complete path through the body more than 1,000 times a day. [love] FEEL THE BEAT: An adult heart beats Discography Track listing # Title 1. I'll Be Over You 3:46 2. Tokyo 3:14 3. Hey (I've Been Feeling Kind Of Lonely) 3:06 4. Only Wanna Be With You 3:54 5. Play It For The Girls 3:30 6. Blue 3:12 7. Purest Delight 3:02 8. about 72 times a minute while a kid's heart beats much faster--90 to 120 times a minute! [love] ROUND & ROUND: The heart recirculates all the blood in the body--almost five liters worth--every single minute. Blood For Every Body Part SCIENCE FACT: The circulatory system circulatory system, group of organs that transport blood and the substances it carries to and from all parts of the body. The circulatory system can be considered as composed of two parts: the systemic circulation, which serves the body as a whole except for the includes the heart, the blood, and the network of vessels (veins, arteries, and capillaries Capillaries The smallest arteries which, in the lung, are located next to the alveoli so that they can pick up oxygen from inhaled air. Mentioned in: Adult Respiratory Distress Syndrome, Birthmarks, Platelet Count ) in which the blood travels. ACTIVITY: Student groups can build their own vessel networks! For each group you will need 6" of nylon rope with one end taped off, plastic clothespins, paper towels, and a dish of red-tinted water. Assemble materials, then guide students through these steps: [ILLUSTRATION OMITTED] 1. Separate the loose end of the rope to create an "artery" that branches into tiny "capillaries." 2. Crumple crum·ple v. crum·pled, crum·pling, crum·ples v.tr. 1. To crush together or press into wrinkles; rumple. 2. To cause to collapse. v.intr. 1. the paper towel to represent the body, and place it near the dish of "blood." 3. Secure the taped end of the rope to the dish so that the cut end rests on the paper towel. 4. Observe how the blood flows to all the smaller blood vessels Blood vessels Tubular channels for blood transport, of which there are three principal types: arteries, capillaries, and veins. Only the larger arteries and veins in the body bear distinct names. in the "body." 5. In your journal, explain how blood travels throughout the body, then draw and diagram a section of a blood vessel blood vessel n. An elastic tubular channel, such as an artery, a vein, a sinus, or a capillary, through which the blood circulates. blood vessel(s), n the network of muscular tubes that carry blood. network. Germ germ (jerm) 1. a pathogenic microorganism. 2. a living substance capable of developing into an organ, part, or organism as a whole; a primordium. Gobblers SCIENCE FACT: Along with water and other substances, blood also contains red and white blood cells White blood cells A group of several cell types that occur in the bloodstream and are essential for a properly functioning immune system. Mentioned in: Abscess Incision & Drainage, Bone Marrow Transplantation, Complement Deficiencies . Red cells carry oxygen and carbon dioxide carbon dioxide, chemical compound, CO2, a colorless, odorless, tasteless gas that is about one and one-half times as dense as air under ordinary conditions of temperature and pressure. ; white cells attack germs. ACTIVITY: Students can make blood models to show how white blood cells work. For each model you will need tiny dots punched from red craft foam and from white magnet sheets (available at craft stores), a clear plastic soda bottle, and a small 3-D magnet. Assemble these materials, then guide students through the following steps: 1. Place 50 red blood "cells" into the bottle "blood vessel." Add one white cell for every 10 red cells. 2. Drop in a 3-D magnet "germ," replace the bottle's cap, and then tilt and shake the bottle gently. 3. Observe how the white blood cells "attack" the germ, as shown. 4. Repeat the experiment using different numbers of red and white blood cells. What happens? 5. In your journal, explain how white blood cells work and why they are important to the body. [ILLUSTRATION OMITTED] Pump Action Noun 1. pump action - action mechanism in a modern rifle or shotgun; a back and forward motion of a sliding lever ejects the empty shell case and cocks the firearm and loads a new round slide action SCIENCE FACT: The heart has four chambers that function as two pumps. These pumps push open valves to let blood flow from chamber to chamber. [ILLUSTRATION OMITTED] [ILLUSTRATION OMITTED] [ILLUSTRATION OMITTED] ACTIVITY: Students can "pump" their own heart models. You'll need permanent markers A permanent marker is a type of marker pen that is used to create permanent writing on an object. Generally the liquid is water resistant, contains the toxic chemical xylene or toluene, and is capable of writing on a variety of surfaces from paper to metal to stone. , freezer bags, liquid starch starch, white, odorless, tasteless, carbohydrate powder. It plays a vital role in the biochemistry of both plants and animals and has important commercial uses. , food coloring, masking tape, and rubber bands. Assemble materials, then guide students through these steps: 1. Label a bag as shown, then add two inches of starch and a few drops of food coloring. Press the air out of the bag, zip it, and reinforce the seal. 2. Make chambers by gathering and wrapping a rubber band tightly around the top of the bag under the seal. Next, push the "blood" into the "atrium atrium (ā`trēəm), term for an interior court in Roman domestic architecture and also for a type of entrance court in early Christian churches. The Roman atrium was an unroofed or partially roofed area with rooms opening from it. " and loosely wrap a rubber band around the middle to create a "valve." 3. Gently pump the atrium, forcing blood through the valve into the ventricle ventricle /ven·tri·cle/ (ven´tri-k'l) a small cavity or chamber, as in the brain or heart.ventric´ular ventricle of Arantius the rhomboid fossa, especially its lower end. . 4. In your journal, describe how blood moves through the heart to the body. It's All About Heart! [ILLUSTRATION OMITTED] Students can show what they've learned about the heart with this fun, seasonal bulletin board. Create anatomical cutouts by enlarging the template at right for students to trace onto colored paper. Ask them to write facts about the heart on their cutouts and decorate them. Display the cutouts in the shape of a Valentine's Day Valentine's Day: see Saint Valentine's Day. Valentine's Day Lovers' holiday celebrated on February 14, the feast day of St. Valentine, one of two 3rd-century Roman martyrs of the same name. St. heart. [ILLUSTRATION OMITTED] --Adapted from an idea by Kay Collins, Hamilton, OH Get the Beat SCIENCE FACT: How often a heart pumps is measured by taking a pulse. Physical activity can change a person's heart rate. ACTIVITY: Students can compare their own heart rates using these interactive charts. Label the sections as shown, numbering from 50 to 150. Then guide students through these steps: 1. Find a pulse (at your wrist, neck, or inner elbow) and count the beats for 15 seconds. Multiply by 4. 2. Write your name and heart rate on a cutout cut·out n. 1. Something cut out or intended to be cut out from something else. 2. Electricity A device that interrupts, bypasses, or disconnects a circuit or circuit element. 3. and tape it to the "At Rest" chart. 3. After 2 minutes of exercise (such as jumping jacks), find your rate again and display it on the other chart. 4. In your journal, compare your heart rates with the rates of the class. [ILLUSTRATION OMITTED] RELATED ARTICLE: REPRODUCIBLE: HEART ACTIVITY THE GREAT HEART RACE Instant Spinner! It's easy. Just place a paper clip under a pencil point and spin. Players: 2-3 Object: Move all your "blood cell" game markers through the heart and lungs to the body. How to Play: Each player chooses a color and places 5 candy hearts of that color on Start. 1. To take a turn, spin and move any of your "blood cell" game markers that number of spaces. 2. Only one marker at a time can land on a heart-shaped space, but any number of markers can land on the Atrium, Ventricle, or Lung spaces. When you come to an arrow, slide your marker to the next space. 3. To reach Finish, you must spin the exact number of spaces. The first player to move all markers to Finish wins! [ILLUSTRATION OMITTED] |
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