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wave motion
Quiz by Mai Mohamed Elwazeer
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16.6-16.8 Wave Motion16.4-16.6 Wave Motion16.1 to 16.4 Wave MotionGrade 7 Motion/wave/charging processDigestive System. Teeth help break down the food to small pieces. Tongue moves food to the back of the mouth and to the opening of the esophagus. Saliva is 99% water and enzymes that begin to chemical digestion. Small Intestine is a coiled tube like organ is 20feet long. This is when nutrients are taken up by the body. Villus is the spot that nutrients are pass out of the small intestine to the body. Liver is a large organ that produces bile to digest fat. Gallbladder produces bile as needed into the small intestine. Pancreas is an organ that produces enzymes and release directly into the small intestine. Colon or large intestine is an organ that absorbs most of the liquid from undigested food. Rectum is where solid waste is stored. Anus is the opening to the out side . The main function of the digestive system is to turn the food into simple sugars, amino acids, and carbohydrates. This is fuel for the human body. The first stage of the digestive system is the mouth and teeth. The teeth grid up the food. Which saliva is mix with the food to break the food down. The food is swallowed and wave like motion moves the food to the stomach. The second stage is the stomach breaks down the food. The stomach churns the food. Mixing the food with the gastric juices. This is done with the gastric juices are mix in the stomach. The glands in the stomach produce the juices. The gastric juices break down the proteins. Then the food is passed into the small intestine. In the small intestine which is about 20ft long. This is where the small intestine absorbs the nutrients from the food. Most digestion takes place in the duodenum of the small intestine. Small finger like projections called villus that collect the nutrients. These nutrients are passed into the bloodstream. The three organs that help in digesting the food. Liver, and gallbladder. Liver produces bile , a substance that aids in digestion of fats. Gallbladder holds and releases bile into the small intestine as needed. Pancreas lies across the back of the abdomen. The pancreas produces enzymes that are necessary to break down carbohydrates, proteins, and fats. Cells in the pancreas are called Islet of Langerhans, which produce two hormones (glucagon, and insulin. These regulate sugar in the blood. Insulin is a hormone that stimulates the liver to convert glucose to glycogen. Glucagon is a hormone that stimulates the liver to convert glycogen to glucose. Earthquake Hazards There are so many things that can happen during or after an earthquake. There are surface rupture and physical damage to buildings and other infrastructures, liquefaction, fire, landslide, and tsunami. Surface rupture and physical damage is the most obvious hazard of an earthquake the ground to break and buildings to collapse. Urban areas would experience more Earthquakes with higher energy create stronger ground motion, which can cause of this damage due to the presence of more infrastructures. Liquefaction occurs in areas where the soil becomes saturated with water. During an earthquake, the movement of the ground may loosen the soil and allow more water to seep in between the particles. This decreases the ability of the soil to support structures that are resting upon it. When it can no longer support a building, instead of being toppled over, the building starts to sink. Liquefaction mostly occur in reclaimed lands, which were once a part of a body of water. Fires can break out during or after an earthquake due to damaged or broken utility lines, substations, and power plants. It can also occur when ground rupture breaks gas tanks or pipes that lead to gas leaks. Tsunami or a harbor wave is an earthquake hazard that is generated when earthquakes occur on the seafloor. Tsunami displaces large volume of water from the sea to the land, causing damages in the cities and communities near the shore (figure 4-2).Earthquake Hazards There are so many things that can happen during or after an earthquake. There are surface rupture and physical damage to buildings and other infrastructures, liquefaction, fire, landslide, and tsunami. Surface rupture and physical damage is the most obvious hazard of an earthquake the ground to break and buildings to collapse. Urban areas would experience more Earthquakes with higher energy create stronger ground motion, which can cause of this damage due to the presence of more infrastructures. Liquefaction occurs in areas where the soil becomes saturated with water. During an earthquake, the movement of the ground may loosen the soil and allow more water to seep in between the particles. This decreases the ability of the soil to support structures that are resting upon it. When it can no longer support a building, instead of being toppled over, the building starts to sink. Liquefaction mostly occur in reclaimed lands, which were once a part of a body of water. Fires can break out during or after an earthquake due to damaged or broken utility lines, substations, and power plants. It can also occur when ground rupture breaks gas tanks or pipes that lead to gas leaks. Tsunami or a harbor wave is an earthquake hazard that is generated when earthquakes occur on the seafloor. Tsunami displaces large volume of water from the sea to the land, causing damages in the cities and communities near the shore.Wave.