1. Cancer Arsenic is an element that commonly causes skin and lung cancer. Often is combined with other elements to form other compounds. Current Uses: Pesticides, nutritional supplement for chickens Past Uses: Food coloring, Chemical Weapon Arsenic 33 As 74.92

2. Cancer Ethylene Oxide is an organic compound thought to cause many different cancers, including breast, stomach, and leukemia (cancer of the blood). Current Uses: Cigarette production, cleaning medical equipment

3. Cancer Cancer is abnormal or uncontrolled cell replication. Think of the cell as a broken copy machine that can’t stop making copies. Eventually, the bad copies prevent the healthy cells from performing their jobs. One cancer cell becomes cancer tissue

4. Cancer Cancer normally effects a single organ first. For example, stomach cancer begins in the stomach. Several different types of cancer can occur in the stomach. The most common type is called adenocarcinoma, which starts from one of the common cell types found in the lining of the stomach. Surgery to remove the stomach (gastrectomy) is the only treatment that can cure the condition. Radiation therapy and chemotherapy may help. For many patients, chemotherapy and radiation therapy after surgery may improve the chance of a curegastrectomyRadiation therapy chemotherapy

5. Cancer Cancer can eventually spread or migrate to other parts of the body and affect multiple organ systems. This process is known as metastasis. In this image, the cancer has spread from the women’s breast into her liver.

6. Cancer Cancer occurs in other animals, and scientists use these organisms to help understand cancer and investigate possible treatments. For example, mice are commonly used to study cancer.

7. Cancer Humans are not equally affected by cancer, and if we examine the population of Texas, we find that some individuals are more likely to have breast cancer than others More women with breast cancer Less women with breast cancer

8. Cancer When thinking about cancer, scientists investigate biotic and abiotic matter in the ecosystem. In India, many people are suffering from arsenic poisoning. Arsenic is found in the rocks and sediment in the Himalayan mountains. The arsenic flows down the mountain in streams, where bacteria help to dissolve it into the water. People drink the water and become sick. Show India using Google Earth