Riverdeep Interactive Learning Your Path to Success™
  

My Account Login Password




Special Offers
Today’s Flyer
New User? Sign up today  |  Access My Subscriptions

Stories for Students – Biology

Sept. 23, 2002 Fall Is in the Air
Fall is officially here. Why do leaves change colors? How do poets describe autumn's splendid changes? Related Riverdeep activities: An Overview of Photosynthesis, Why Are Leaves Green?, Photosynthesis and Plant Adaptations Xcursion
Sept. 16, 2002 All Tied Up In Knots
They're intricate, puzzling, beautiful, and often surprising. Explore why mathematicians and geneticists are so fascinated with knots. Related Riverdeep activities: DNA & Replication
Sept. 16, 2002 Genetics of Aging
What can the lowly housefly teach your students about the genetics of aging? Find out in this article for the classroom. Related Riverdeep activities: Genes and Dominance
Sept. 9, 2002 Along the Food Chain
It's a bug-eat-bug world. Learn more about the fragile importance of food chains in this article for the classroom. Related Riverdeep activities: Exploring Food Chains and Food Webs
Sept. 9, 2002 Life on Mars, Life on Earth
Can Mars support life? Mounting evidence suggests that it can — or could at some point in its history. And some of that evidence is being found here on Earth. Related Riverdeep activities: Our Solar System Xcursion
Sept. 2, 2002 West Nile's Deadly Advance
West Nile virus has marched across the United States. Is it a real threat? Let this comprehensive article written for the classroom guide your investigation. Related Riverdeep activities: Introducing a Virus, Data Displays, Exploring Bar Graphs, Snack-O-Gram
June 18, 2002 Wildfires
This year's wildfire season has started aggressively with fierce blazes forcing thousands to evacuate their homes. Related Riverdeep activities: Energy Directions, Graphing Ordered Pairs, Health and the Respiratory System
May 20, 2002 Jelly Jewels
They're almost too beautiful to be real, but some of the oceans' graceful jellies pack a powerful punch. Related Riverdeep activity: Human Circulatory System
May 6, 2002 To Bee or Not to Bee
They've got a highly organized social scene and a busy working day. Meet nature's furry, striped pollinator, the bee. Related Riverdeep activity: Dominant and Recessive Traits
April 29, 2002 Building Better Tomatoes
This article is designed for teachers to use in the classroom. As biologists engineer tomatoes to taste good year-round, you can investigate GM foods with your students. Related Riverdeep activities: DNA and Replication, Genetic Engineering
April 15, 2002 On the Run
videoIt takes training and endurance to cross the finish line of the Boston Marathon. Find out more from four-time winner Bill Rodgers. Related Riverdeep activities: The Circulatory System and Health: The Effect of Exercise, Fitness and the Heart
March 4, 2002 The Importance of Insects
This article is designed for teachers to use in the classroom. Without insects, life on Earth could not exist. We look at insects' eminent role in the ecosystem. Related Riverdeep activities: Exploring Food Chains and Food Webs, Population Growth Curve, Factors Affecting Population Growth, Carrying Capacity, Predator-Prey Relationships, Competition Between Two Species
March 4, 2002 Bug Medicine
Leeches and maggots, healing treatments of yesteryear, make a comeback and find their way into modern medical science. Related Riverdeep activity: The Circulatory System
Feb. 4, 2002 Changing the Blueprint
The heated debate over human cloning continues as the U.S. Senate tries to decide whether human cloning should be allowed for any reason. We look at the applications and ethics of cloning. Related Riverdeep activities: The Genetic Material, Genetic Engineering
Jan. 21, 2002 What the Nose Knows
Fresh coffee, roses, hot dogs... how do our noses pick up so many different odors? Find out about all things olfactory — in the animal kingdom, too. Related Riverdeep activities: Graham's Law, Lenses and Vision
Jan. 21, 2002 Too Many Deer?
Hunting makes for a controversial method of reigning in prosperous deer populations. With this article, designed for use in the classroom, teachers can discuss animal population management — the science and ethics — with their students. Related Riverdeep activities: Population Growth Curves, Factors Affecting Population Growth, Carrying Capacity, Predator-Prey Relationships
Dec. 17, 2001 Breathing Easy
This article is written for teachers for use in the classroom. See how understanding asthma can give your students an interesting context for looking at the human respiratory system. Related Riverdeep activities: Health and the Respiratory System — Asthma and Emphysema
Dec. 10, 2001 Asteroid Watch
Is Earth in danger of colliding with asteroids? Astronomers now tell us the risk is not as great as we once thought. Teachers can look at the risks and the science involved with this article designed especially for the classroom. Related Riverdeep activities: Potential and Kinetic Energy, Collisions, Reflections in a Plane Mirror, The Role of Light in Photosynthesis, Exploring Food Chains and Food Webs, Amplitude, Wavelength, and Frequency of Waves
Dec. 10, 2001 On the Other Hand
There's more to being left-handed than just writing with your left hand. Related Riverdeep activity: What Is a Trait?
Dec. 3, 2001 Cloning Controversy
No two fingerprints are alike. Could recent developments in human cloning change that? Investigate with this Riverdeep article, written for teachers for use in the classroom. Related Riverdeep activities: Principles of Genetics, Genetic Engineering, Molecular Biology (DNA)
Nov. 26, 2001 Flu Season Is Coming
This article is for teachers, for use in the classroom. Flu season has arrived, and once again there is a shortage of vaccines. Related Riverdeep activities: Catching the Flu, Matrix Multiplication
Nov. 19, 2001 What's In a Name?
This article is designed for classroom use. Learn how organisms, compounds, and celestial bodies get their names according to strict rules. Related Riverdeep activities: Chemical Nomenclature Tool, Cations and Anions, Binary Ionic Compounds, Ternary Ionic Compounds, Binary Molecular Compounds, Acids and Bases, Chemical Reactions as Equations Xcursion
Nov. 12, 2001 Reefs in Danger
A recent study prompts the question: what dangers face the beautiful and vulnerable coral reefs of the world? Related Riverdeep activities: Photosynthesis and Light, Destination: Ocean
Nov. 5, 2001 Coming Ashore
Why do dolphins and whales come ashore? A marine veterinarian helps us investigate the phenomenon of stranding. Related Riverdeep activities: Exploring Direct Variation, Whales Xcursion
Oct. 15, 2001 Sweet Dreams
Recent studies may help scientists learn more about how dreams form. Related Riverdeep activities: Write for Your Life, Writing Trek, Blood Pressure and Circulation
Sept. 3, 2001 Wildfires 2001
This Teaching the News article provides information on wildfires and suggests activities for the teacher to use in the classroom concerning wildfires and the 2001 fire season. Related Riverdeep activities: Mastering Algebra 1 Course 1: Graphing Ordered Pairs, Energy Direction, Health and the Respiratory System: Asthma, Health and the Respiratory System: Emphysema
Sept. 3, 2001 Spider Engineering
What exactly is spider silk, and what makes it so flexible and strong? Related Riverdeep activities: Genetic Engineering
August 27, 2001 The Power of Helios
NASA has high hopes for its solar-powered aircraft. Related Riverdeep activities: The Role of Light in Photosynthesis, Light & Photosynthesis
July 30, 2001 Research Versus Animal Rightsvideo
Explore the debate over the use of animals in medical research and write a persuasive essay in response. Related Riverdeep activities: Write for Your Life Persuasive Essay, Organization and Animal Testing Xcursion
July 23, 2001 Visit the Wetlandsvideo
Take a virtual field trip to explore the wetlands and hear the debate over wetlands conservation. Related Riverdeep activities: Exploring Food Chains and Food Webs, Wonderful Wetlands Xcursion
July 16, 2001 The Price of AIDS
Learn how AIDS is going to affect our global future in many ways. Related Riverdeep activities: Essentials of Percents, Factors Affecting Population Growth, Introducing a Virus
June 18, 2001 Wildlife Detective Work
Learn how the children of Massachusetts are helping scientists classify all of the state's wildlife. Related Riverdeep activities: Carrying Capacity, Exploring Food Chains and Food Webs, Population Growth Curve, Factors Affecting Population Growth, Two Populations — What's the Difference?, Observing Population Growth, Modifying Population Growth, Effect of Food Supply, Competition between Two Species, Predator-Prey Relationships, An Overview of Photosynthesis
June 11 , 2001 Global Population Trends
Flash forward 50 years. Will Earth be able to sustain the ever-growing human population? Related Riverdeep activities: Carrying Capacity, Exploring Food Chains and Food Webs, Population Growth Curve, Factors Affecting Population Growth, Two Populations — What's the Difference?, Observing Population Growth, Modifying Population Growth, Introducing a Virus, Effect of Food Supply, Historical Estimates of World Population, Determining Population Growth, Carrying Capacity and the Human Population Xcursion
May 7, 2001 Exploring Ecosystems Electronically
Students around the world can take an online field trip to Montana's Glacier National Park. Related Riverdeep activities: Carrying Capacity, Exploring Food Chains and Food Webs, EarthScience Center's Global Warming Lab
April 11, 2001 Environmental Friend or Foe?
Learn more about how some of Bush's policies may affect the environment.
Related Riverdeep activity: EarthScience Center's Global Warming Lab
Apr 10, 2001 Smart Food
As funny as it sounds, eating a nutritious lunch can change your life.
Apr 2, 2001 Aquarium Architecture video
Aquarium architect Peter Chermayeff incorporates elements from mathematics, engineering, and the environment into his designs.
Mar 29, 2001 Artificial Heart: Take Two
Researchers unveil the second manmade heart in history. Related Riverdeep activities: Fitness and the Heart, the Cardiovascular System and Health: Heart Disease
Mar 13, 2001 Fish Flee Farm
Environmentalists worry that the recent escape of 100,000 farm-raised salmon in Maine may endanger the state's wild salmon population. Related Riverdeep activities: Exploring Food Chains and Food Webs, Population Growth Curve, Factors Affecting Population Growth, Predator-Prey Relationships.
Mar 5, 2001 Milestones in DNA Research
Your students can learn more about genetics and the history of genetic research leading up to the Human Genome project in this article for the classroom. Riverdeep activities: The Master Molecules, DNA and Replication, Genetic Engineering, Recombinant DNA, The Human Genome Database
Mar 2, 2001 Manatees or Humanity?
The gentle and endangered manatee has only one know enemy — human beings. Related Riverdeep activities: Predator-Prey Relationships, Two Competing Populations, Competition between Two Species
Mar. 1, 2001 Corralling Mad Cow Disease
Explore whether the United States is at risk of a mad cow epidemic.
Feb. 21, 2001 The Science of Creativity
Changing your perspective can help unlock creative genius. Related Riverdeep activity: Fitness and the Heart
Feb. 20, 2001 The Wide World of Jane Goodall
Widely considered the world's leading expert on animal behavior, Jane Goodall has had a career that spans 40 years.
Feb. 8, 2001 Extinction of a Species
The red colobus monkey recently became extinct, an event that raises concerns for other primates around the world. Related Riverdeep activities: Exploring Food Chains and Food Webs, Carrying Capacity
Feb. 7, 2001 Sounding the Alarm
Noise pollution has become a way of life and a growing health problem. Related Riverdeep activity: Wave Energy vs. Amplitude
Feb. 5, 2001

audio Taking a World View
Explorer Wade Davis combines anthropology and botany into a career that spans the globe. Related Riverdeep activities: Destination Rainforest, Sun and Shade Plants

Feb. 1, 2001 Panda Preservation
The arrival of two giant pandas at the National Zoo has renewed attention on panda survival worldwide. Related Riverdeep activities:  Exploring Food Chains and Food Webs, Factors Affecting Population Growth, Talking Walls
Jan. 18, 2001 The Far Side of Science
A science humor publication proves that science fact can be a lot stranger than science fiction. Related Riverdeep activities: Dominant and Recessive Traits, Predator-Prey Relationships, Enter Predator
Jan. 9, 2001 Cross-Species Transplants
Scientists continue to debate using animal organs in humans. Related Riverdeep activities: Human Genome Update, Mapping DNA
Jan. 2, 2001

Saving an Underwater World
Sylvia Earle, marine biologist and underwater explorer, dedicates herself to protecting the world under water. Related Riverdeep activity: Factors Affecting Population Growth

Dec. 18, 2000 Journey to the Bottom of the Sea
audio videoOcean explorer Robert Ballard embarks on a new expedition to uncover the ancient secrets of the Black Sea. Related Riverdeep activity: EarthScience Center
Nov. 28, 2000 An Upstream Battle
The tearing down of dams across the country has provided salmon with a new lease on life. Related Riverdeep activity: Factors Affecting Population Growth
Nov. 27, 2000 Reducing Smog
Mexico City has made significant strides in reducing urban smog, showing that communities can work to make a difference in the quality of the air they breathe. Related Riverdeep activities: Inhalation and Exhalation, Gas Exchange, Health and the Respiratory System: Asthma, Health and the Respiratory System: Emphysema, Fueling Photosynthesis with Carbon Dioxide and Water
Nov. 20, 2000 New Leads against Food Poisoning
The combination of two high-tech tools—DNA fingerprinting and a nationwide food poisoning network—enables health officials to locate the source of food poisoning. Related Riverdeep activity: DNA Fingerprinting
Nov. 13, 2000 Cool Off with Algae
Scientists propose that fertilizing the ocean with iron may cause more phytoplankton to grow, thereby counteracting global warming. Related Riverdeep activities: Limiting Factors I, Limiting Factors II, Fueling Photosynthesis with Carbon Dioxide and Water
Nov. 8, 2000 Lead Poisoning: From Beethoven to Ducks
A new study shows that Beethoven suffered from lead poisoning, which now also affects wildlife. Related Riverdeep activities: Functions of the Circulatory System, Periodic Table Tool
Nov. 3, 2000 A World within a World
The Biosphere 2 project is currently conducting research that examines the effects of increased levels of CO 2 . Related Riverdeep activity: Fueling Photosynthesis with Carbon Dioxide and Water. Related Riverdeep event: Going to Extremes
Oct. 18, 2000 The Dimensions of Dyslexia
There have been recent strides in understanding the problems and anatomy of the learning disability known as dyslexia.
Oct. 9, 2000 Exporting "Surplus" Elephants
The elephants' changing habitats are making their survival more difficult. Related Riverdeep activities: Population Growth Curve, Carrying Capacity
Oct. 2, 2000 Dating Ancient Finds
National Geographic Explorer-in-Residence, Robert Ballard, finds evidence that the Black Sea covers areas that were once inhabited. Related Riverdeep activities: Periodic Table: An Introduction, Fueling Photosynthesis with Carbon Dioxide and Water, Working with Powers, The Mass Spectrometer
Sept. 29, 2000 The Monarch Migration
Urban sprawl affects the monarch butterfly's winter habitats.
Sept. 27, 2000 Ghost Roads Haunt U.S. Forests
Roads illegally cut into forests around the country cause environmental problems. Related Riverdeep event: Into the Brazilian Rainforest
Sept. 18, 2000 The Year of the Wildfires
The wildland acres going up in flames across America endanger communities and ecosystems. Related Riverdeep activities: Energy Directions, Health and the Respiratory System: Asthma, Health and the Respiratory System: Emphysema, Graphing Ordered Pairs
Sept. 14, 2000 Life without Trees
Increasing development destroys nature's "vacuum cleaners." Related Riverdeep activities: What Is Photosynthesis?, An Overview of Photosynthesis
Sept. 8, 2000 By Leaps and Bounds
From birth through adolescence, the body grows remarkably. Related Riverdeep activity: Spurting Up
Sept. 5, 2000 Smart Food
Eating a nutritious lunch can change your life.
Aug. 18, 2000 Tracking the West Nile Virus
Following the footsteps of a mysterious illness leads to an unexpected—and serious—discovery. Related Riverdeep activity: Introducing a Virus
Aug. 4, 2000 A Perilous Journey
The population of the world's largest reptile is declining, but there's some good news from the beaches of Trinidad. Related Riverdeep activities: Factors Affecting Population Growth, Population Growth Curve, Observing Population Growth
July 24, 2000 Everybody into the Water
Clean-up efforts return the Charles River in Massachusetts to a safe and clean boating and swimming haven. Related Riverdeep activity: Design an Ecosystem
July 19, 2000 On the Road to Machu Picchu
A 30-mile trek high in the Andes leads to an ancient Incan ceremonial city. Related Riverdeep activity: Acclimatization
July 5, 2000 New Hope for Diabetics
Treatment for diabetes moves beyond insulin injections. Related Riverdeep activity: The Circulatory System and Health: The Effect of Exercise
June 21, 2000 Motorboats vs. Manatees
Speed restrictions on motorboats may keep the endangered manatee population safe. Related Riverdeep activities: Momentum and Force, Collisions in One Dimension II
June 19, 2000 Starving Cancer
New cancer treatment shows promise in shrinking tumors. Related Riverdeep activity: Blood Supply
June 15, 2000 Where Have All the Sea Otters Gone?
Back from the brink of extinction, these creatures face new dangers. Related Riverdeep activities: Exploring Food Chains and Food Webs, Enter Predator, Factors Affecting Population Growth
June 9, 2000 Setting Wildland Fire Policy
Revised fire management strategies designed to protect the environment spark debate. Related Riverdeep activity: Energy Directions
June 8, 2000 The Future of Frog Dissection
Learning about a frog's anatomy now can take place online. Related Riverdeep activity: Heart Attack!
June 5, 2000 You Are What You Eat
A report warns teens about eating too much junk food and helps them calculate their body mass index. Related Riverdeep activities: Blood Pressure and Circulation, Heart Problems
May 25, 2000 Human Genome Update
Unlocking the secrets contained in human DNA helps in the treatment of disease. Related Riverdeep activities: Mapping DNA, From Protein to DNA, The Human Genome Database
May 15, 2000 Saving the Sequoias
These natural giants receive federal recognition and protection. Related Riverdeep activities: An Overview of Photosynthesis, The Role of Light in Photosynthesis
May 11, 2000 Manatees or Humanity?
These gentle sea mammals have no known enemies, except humans. Related Riverdeep activities: Competition between Two Species, Two Competing Populations
May 11, 2000 The Ivory Ban
Countries compromise on an international ban on the trading of ivory. Related Riverdeep activity: Carrying Capacity
May 9, 2000 Deep-Diving Dolphins
By observing dolphins on their deep-water dives, scientists are able to understand more about oxygen use. Related Riverdeep activities: Boyle's Law, Lung Capacity
May 3, 2000 Preventing Lyme Disease
A serious tick-borne illness infects animals and humans alike. Related Riverdeep activity: Cardiac Disorder
Apr. 24, 2000 Orcas in Our Midst
Whales living in captivity face dangers, too.
Apr. 20, 2000 Going Solar
Harnessing the Sun's energy reduces our dependence on fossil fuels. Related Riverdeep activities: The Role of Light in Photosynthesis, Light & Photosynthesis
Apr. 19, 2000 Hold the Milk, Wheat, Eggs, and Soy
Certain foods cause allergic reactions in a percentage of the population. Related Riverdeep activities: The Mechanism of Breathing, Health and the Respiratory System: Asthma
Apr. 18, 2000 Ups and Downs for Grizzly Bears
A North American species faces threats from humans. Related Riverdeep activities: Food Chains and Food Webs, DNA Fingerprinting, Maintaining System Balance
Apr. 14, 2000 All Tied Up in Knots
Untangle the language, math, and science of knots. Related Riverdeep activity: DNA & Replication
Mar. 24, 2000 When Food Bites Back
The bacteria or viruses that cause food poisoning hide, then attack.
Mar. 14, 2000 America Debates Genetically Modified Food
Concerns abound in the farming and scientific communities about the advantages and disadvantages of genetically modified foods. Related Riverdeep activity: Genetic Engineering
Mar. 7, 2000 Warming the Food Web
Global warming disrupts hibernation and migration patterns. Related Riverdeep activities: Exploring Food Chains and Food Webs, Predator-Prey Relationships
Feb. 28, 2000 Saving a Part of Brazil
Developers and environmentalists compete for an Iowa-sized piece of Brazil. Related Riverdeep activities: Exploring Food Chains and Food Webs, Factors Affecting Population Growth, Competition between Two Species. Related Riverdeep event: Into the Brazilian Rainforest
Feb. 10, 2000 Supercomputer Sleuth: Tracking the Eve Virus
Scientists trace the origins of the virus that causes AIDS. Related Riverdeep activities: Mutant Music, Natural Mutations
Feb. 10, 2000 You Light Up My Life
Winter affects mood, appetite, and personality, but where there's light, there's hope. Related Riverdeep activity: The Role of Light in Photosynthesis
Feb. 9, 2000 Lawsuit Blames Home Pesticide for Ills
Persistent health problems result when home is no longer a safe haven. Related Riverdeep activities: Gas Exchange, Flow of the Blood, Natural Mutations, Chemical Mutagens
Feb. 4, 2000 Infectious Diseases among Wildlife
Animals are infected by a growing number of microorganisms.
Jan. 26, 2000 Iguanas Fit Their Shrinking Food Supply
Marine reptiles on the Galapagos Islands adapt to changes in their food supply. Related Riverdeep activity: Eating Efficiently, Survival Strategies, Environmental Changes
Jan. 12, 2000 Happy Anniversary, NOAA
Agencies of the National Oceanographic and Atmospheric Administration monitor weather, assess climate changes, and study the environment. Related Riverdeep activities: Fueling Photosynthesis with Carbon Dioxide and Water, Carbon Dioxide, Defining Mean & Median, Calculating the Mean, Median & Mode, EarthScience Center: Hurricane Lab
Jan. 7, 2000 Dilemmas of the New Genetics
An active GRPR gene may increase the susceptibility to lung cancer. Related Riverdeep activities: Genetic Code, Genetic Engineering (introductory), Genetic Engineering (advanced), The Human Genome Database
Jan. 6, 2000 Mapping Global Warming
Numerous environmental organizations publish a map indicating the "fingerprints" and "harbingers" of global warming. Related Riverdeep activities: Global Warming, EarthScience Center
Jan. 6, 2000 White Rhinos Rebound from Extinction
Rhinos face extinction in certain African countries, but in one South African game reserve, the population is on the rise. Related Riverdeep activities: Maintaining System Balance, Competition Pressure
Jan. 3, 2000 Global Celebrations Greet 2000
Global revelers party to ring in the millennium and leave behind more than tons of confetti.
Dec. 20, 1999 Importing Natural Enemies for Fire Ants
Introducing natural predators controls a menacing population of fire ants. Related Riverdeep activities: S and J Curves, Introducing a Virus, Effect of Food Supply
June 4, 1999 GM Foods
Called "Frankenstein" foods, genetically modified foods hold promise, but spark concern. Related Riverdeep activities: Genetic Engineering, Chemical Mutagens