The normal, or resting, pulse rate in adolescence can range between 50 to 60 beats per minute to as high as 90 to 100. When active, the maximum heart rate for a teen â the highest amount his heart can safely beat per minute â is about 200 to 205. You can obtain the exact number by subtracting your teenâs age from 220.
About. 1  Smithsonian Earth is a commercial-free streaming service that offers unlimited access to original documentaries, short series, and Nature Scenes. Shot in stunning 4K Ultra HD resolution by filmmakers around the world, its programs will bring you closer than ever before to nature's most fascinating animals and wildest locations.
Natural and sustainable foods including BBQ beef brisket, rotisserie chicken, burgers, pizza, hot dogs, gourmet sandwiches, house-prepared soups, fresh salads, organic fruit, bottled and fountain beverages, and homemade desserts. 11 a.m. to 3 p.m. daily. Open until 5 p.m. when the museum has extended hours. Ice cream, homemade desserts, specialty coffees, gourmet sandwiches, and fresh salads. Open until 7 p.m. when the museum has extended hours. Hot dogs, sodas, and ice cream. Discounts are available for Smithsonian Members with a valid membership card.