Steroid trends In “The Incredible Bulk” (p. 18), you learned about the dangers of using steroids. Below is a chart showing the percentage of U.S. students who reported using anabolic steroids. Use the information in the chart to complete the sections that follow. A. Graph It! On a separate piece of paper, use the above […]
DNA on trial – DNA fingerprinting – includes related article Peter Doskoch Imagine a scientific test so sensitive it could identify a crime suspect from a single cell. A microscopic drop of blood, a fallen hair, even the saliva on an envelope flap would provide a positive ID. Sound like science fiction? It’s not. The […]
Venom: Miracle Medicine? – Brief Article Nicole Dyer A sea creature’s poison helped cure a life of chronic pain. Could venom be the newest wonder drug? After a freak hurricane, 14-year-old Laura McManus helped her dad clear fallen tree limbs from their yard. Tugging at a branch, she felt pain rip through her lower back. […]
Ray ban Sean Price Before you hit the beach, remember. Overexposure to the sun’s ultraviolet (UV) rays (invisible energy waves) can cause skin cancer. But scientists at Boston University School of Medicine are developing a new lotion to help your body defend itself from the skin-frying sunshine. When UV rays hit DNA (chemical that carries […]
10 simple steps to writing up your experiment – Special Issue: Doing Science – Cover Story Karen McNulty You never thought you’d see the end of your experiment, but here you are, headed for the homestretch. There’s just one thing left to do: Write up a report. Your report tells other people (like your teacher) […]
Wireless waste: most Americans keep their cell phones for only 18 months. Find out what that means for the environment Patricia Janes MINING MATERIALS 1 Cell phones are made of numerous materials that deplete Earth’s natural resources. For instance, cell phones contain precious metals, like gold and silver, which have to be mined from the […]
Dennis Byrd tackles spinal injury – former New York Jets lineman’s rehabilitation from paralyzing injury – Cover Story Karen McNulty The story of his tragic accident and remarkable recovery. Am I going to be paralyzed?” That was the question New York Jets defensive lineman Dennis Byrd kept asking the people around him as he lay […]
It’s Your Earth – simple ways to save the Earth HERE ARE 30 SIMPLE WAYS TO SAVE IT! REDUCE GARBAGE 1. Precycle–buy things in packages that can be recycled or are made of materials that have already been recycled. 2. Wash, reuse, and recycle glass bottles and jars in the kitchen. 3. Instead of using […]
Global warming: cloud patrol – Earth Science: Global Warning Clouds Kim Masibay Maybe you never give them a thought, but without clouds almost all life couldn’t exist. On any given day, clouds–made of tiny water droplets or ice crystals–cover nearly one third of Earth’s surface. Their job: to reflect the sun’s life-sustaining warmth. So how […]
Tables, Charts, and Graphs – science – Brief Article To make a data table: 1. Draw a data table as shown below. 2. Give your table a title that identifies your variables (“My Week’s Intake of Nutrients”). 3. Label the column on the left as the independent variable (Nutrient). Underneath, list each type of nutrient […]