Effects of Ionizing Radiation PDF

EFFECTS OF IONIZING RADIATION EFFECTS OF IONIZING RADIATION What do you think is the difference between the two categories depending on the severity of the effect of such electromagnetic radiation? EFFECTS OF IONIZING RADIATION  Ionizing Radiation The usual amount of ionizing radiat...

EFFECTS OF IONIZING RADIATION EFFECTS OF IONIZING RADIATION What do you think is the difference between the two categories depending on the severity of the effect of such electromagnetic radiation? EFFECTS OF IONIZING RADIATION  Ionizing Radiation The usual amount of ionizing radiation from natural sources absorbed by our bodies is small. Our main exposure to ionizing radiation comes from manmade sources through the use of diagnostic medical exams  Ionizing Radiation Excessive exposure to these radiations can alter molecules within the cells and may cause eventual harm such as skin or tissue damage, cancer and death.  ALPHA RADIATION Occurs when an atom undergoes radioactive decay. Alpha particles are unable to penetrate the outer layer of dead skin cells  ALPHA RADIATION The health effects from exposure to alpha particles depends greatly on how a person is exposed.  BETA RADIATION It can penetrate skin a few centimeters, posing somewhat of an external health risk. BETA RADIATION Some beta particles are capable of penetrating the skin and causing damage such as skin burns.  GAMMA RADIATION They can even pass through bones and teeth. This makes gamma rays very dangerous. They can destroy living cells, produce gene mutations, and cause cancer.  X-RAY RADIATION X-rays can cause mutations in our DNA and, therefore, might lead to cancer later in life. For this reason, X-rays are classified as a carcinogen  X-RAY RADIATION Exposure to high radiation levels can have a range of effects, such as vomiting, bleeding, fainting, hair loss, and the loss of skin and hair.  ACTIVITY RADIATE YOUR KNOWLEDGE  Direction: Using an A4-size bond paper, make an informative poster about the risks and preventive measures of long exposure to the different forms of Electromagnetic waves in living things and the environment. MATERIALS NEEDED: A4-size bond paper Pencil and Pens Eraser Coloring materials Ruler RUBRICS: LET’S SUM IT UP! Direction: Choose the correct term from the enclosed choices. Write your answer on your filler notebooks. Radio/television signals, GPS and MRI are practical applications of (1) __________________ (radio wave/microwave). Satellite communication, cooking, terrestrial communication, and RADAR make use of (2) ________________ (infrared/microwave). Remote controls, thermal imaging and night vision goggles are practical applications of (3) ________________ (infrared/ultraviolet). You can see things around you because of (4) __________________ (gamma rays/visible light) which is also used in optical fibers, artificial lights and screens of electronic devices. Vitamin D is produced from (5) ______________ (ultraviolet /microwave), which is also used for security markings and sterilization of water in drinking fountains. In diagnosing bone fractures. We use (6) ______________________ (gamma rays/X-rays). (7) __________________ (long wavelength X-ray)/short wavelength X-ray)) is a type of x-ray that can penetrate the flesh while (8) __________________ (long wavelength Xray)/short wavelength X-ray)) can penetrate through metals. Treating tumors and cancer through the process called radiotherapy and sterilizing medical equipment are practical applications of (9) _______________ (gamma rays/ultraviolet). The effect of Electromagnetic waves on organisms and environment depends on how much (10) ______________ (wavelength, energy) it carries.