Scott Foresman Science
Transcription
Scott Foresman Science
School to Home Letter Scott Foresman California Science Chapter 4: Human Body Systems California Standard Life Sciences 2.0 Plants and animals have structures for respiration, digestion, waste disposal, and transport of materials. Here are the key concepts we are learning: • The circulatory system moves blood through the body. It includes the heart, the blood, and the blood vessels. • Blood from the heart is pumped to the lungs, where it picks up oxygen and gives up carbon dioxide. The oxygen-rich blood then returns to the heart to be pumped through the body through arteries and capillaries. • The respiratory system carries gases between the air and the blood. It includes the nose and mouth, trachea, bronchi, and the bronchioles and air sacs in the lungs. • The respiratory and circulatory systems work together to provide cells with the materials they need for cellular respiration. • The digestive system changes food into forms the body can use. The digestive system includes the mouth, esophagus, stomach, small intestine, large intestine, and colon. Vocabulary Review Your child will learn these vocabulary words: artery capillary vein trachea bronchiole air sacs digestion esophagus small intestine large intestine bladder Help your child make these words a part of his or her own vocabulary by reviewing them together. For each part of the body, ask your child to show you where each part of the body is. • The urinary system is the body system that removes wastes from the body. The kidneys, bladder, and tubes that carry urine to and away from the bladder make up the urinary system. Math in Science Have your child use a clock with a second hand and count his or her pulse for 20 seconds. He or she should multiply this number by 3 to calculate his or her resting heart rate. Encourage your child to try different activities, such as walking, running, or bicycling for one minute. Have your child calculate his or her heart rate after each activity. Ask your child to record the results in a bar graph. NASA Discuss with your child what kind of exercises he or she could do to strengthen his or her bones, muscles, and heart. Have your child make a poster to put up in your home to help motivate him or her to stay fit. Biography Ask your child to make a poster persuading more adults to donate blood. Go to your local public library or other public building with your child and see if they have a community bulletin board where your child can hang his or her poster. © Pearson Education, Inc. Take-Home Activities