Biofuels

Energy, Energy Sources, Renewable vs Nonrenewable, The Problem with Fossil Fuels, Back to the Future, Biomass, The Power of Photosynthesis - The Carbon Cycle, Biofuels, Ethanol Fuel, Corn Ethanol, Sugarcane Ethanol, Energy Crops, Biodiesel, Biogas, Biopower, The Energy Puzzle, Glossary…

Cell Phones

Cell Phones are Everywhere!, Cellular Networks, Is It a Radio or Telephone?, Vibrations and Digits, Parts of a Cell phone, More Than a Phone, Cell Phone Do's and Don'ts, Turn It Off!, The Future of Cell Phones, Timeline, Glossary…

Cells

Units of Life - Many Shapes, Inside the Cell, Typical Animal Cell, A Look at the Nucleus, Cells At Work - Muscle Cells, Nerve Cells, Human Blood, Specialized Plant Cells, Plant Tissue Types, Root Cells, Life Cycle of a Cell - Replacing Cells, Cell Division, Growth and Repair:, Mitosis, Specialized Sex Cells, Meiosis, Plant Sex Cells, Cell Diseases - Wild Cells, Wrong Instructions, Traveling Genes, How a Virus Invades a Cell, Single-celled Invaders, Science and the Cell - More Progress, Into the Future, Parent and Child Identical, Many Questions…

Computers

A World Without Computers, What Is a Computer?, Early Computers, Computers Go Electric, Personal Computers, Microsoft and Apple, Hardware and Software, Parts of the Computer, Better and Better, Crash or Freeze, The Future for Computers, Timeline, Computers…

Energy

WHAT IS ENERGY?, HOW WE USE ENERGY - Energy Use in Transportation, Energy Use in Industry, Energy Use in Homes and Buildings, KINETIC VS. POTENTIAL ENERGY - Kinetic Energy, Potential Energy, FORMS OF ENERGY - Heat Energy, Radiant Energy, Electrical Energy, Chemical Energy, Nuclear Energy, CONSERVATION AND TRANSFORMATION OF ENERGY, RENEWABLE VS. NON-RENEWABLE ENERGY - Non-Renewable Energy Sources, Renewable Energy Sources, ENERGY CONSERVATION - Conservation and You, Conserving Heat, Conserving Oil (Petroleum), Recycling, THE FUTURE OF ENERGY…

Food Chains and Webs

OTTERS, URCHINS, AND KELP - Bald Patches, Food Chains and Webs, ALL ABOUT ENERGY - Energy Losses, PRODUCERS - Producers in the Oceans, Kinds of Plant Plankton, CONSUMERS - Secondary Consumers, Tertiary Consumers, Omnivores, DECOMPOSERS - Big Decomposers, OCEAN CLEANERS, Little Decomposers, FITTING IT ALL TOGETHER - Simple Webs, The Richest Webs, SHIFTING WEBS, GLOSSARY, FURTHER INFORMATION - Books, Websites to visit…

Food from the Sun

GETTING STARTED - What is Photosynthesis?, Where Does Photosynthesis Happen?, Plant Cells, Respiration, Starch, Why Do Plants Need Energy?, WATER FOR LIFE - Water Storage, How Do Plants Get Water?, How Do Plants Lose Water?, SOIL FOR LIFE - Nitrates, Phosphorus, Potassium, How Do Plants Obtain Minerals?, Helping Soil and Plants, PLANT TRANSPORT - Xylem, Phloem, Roots and Stems, REPRODUCTION - Stamen, Carpel, Petals, Sepals, What Is Pollination?, Animal-Pollinated Plants, Wind-Pollinated Plants, ALL ABOUT SEEDS - How Do Seeds Find a Good Place to Grow?, 1. Wind Dispersal…

Geology

WHAT IS GEOLOGY?, THE EARTH'S LAYERS - The Inner and Outer Core, The Mantle, The Crust, SOIL - The Lithosphere, Soil Horizons, Soil Composition, Particle Types and Soil Textures, PLATE TECTONICS, TYPES OF ROCKS - Igneous Rocks, Sedimentary Rocks, Metamorphic Rock, LAND FORMATION - Constructive Forces, Folding, Faults, Magnitude and Effect, Volcanic Eruptions, Deposition of Sediment, Destructive Forces, Weathering, Erosion, THE ROCK CYCLE, THE SECRETS IN ROCKS - Just how old is the Earth?, AMAZING ROCK FORMATIONS…

Going Green

What does Going Green mean?, Global Energies, Fossil Fuels and Pollution, Greenhouse Gases, Solar Power, Wind Power, Water Works!, Hydrogen Power, Geothermal Energy, Biomass, Making a Difference, Conserving Electricity, The Three R's - Reduce, Reuse, Recycle, Glossary…

GPS: Global Positioning System

Finding Our Way, How GPS Works - Satellites, Monitoring Stations, Receivers, The History of the Global Positioning System, Traveling by Automobile with GPS, Enjoying the Outdoors with GPS - Hiking, Boating, Fishing, Navigating at Sea, Outdoor Sports, Geocaching, GPS at Work, GPS Helps Save Lives, GPS Units: Various Receivers for Various Needs, Glossary…

Ice to steam

Ice to Steam - Solids, Liquids, and Gases, Changing State, Water and the Weather - How Does Water Get to Your Home?, Extreme Weather, Solids, Liquids, and Gases at Home - Melting Points, Boiling Points, Is Sugar a Solid or a Liquid?, Mixtures of States, Evaporation - How Can You Speed Up Evaporation?, How Does Evaporation Keep You Cool?, Extreme Changes of State - Low Boiling Points, Volcanoes and Lava - What Happens to Lava When It Freezes?, Danger, Volcano!, Particle Theory - Properties of Solids, Liquids, and Gases, Solids, Liquids, Gases…

The Internet and Email

What Is the Internet?, Surfing the Net, Making the Connection, Search Engines - Tips for Finding Information Using a Search Engine, You've Got Mail! - Email Facts, History of the Internet, Universities and the Net, Personal Computers and the Net - The Language of Computers, How Does Email Travel?, The Net Grows and Changes, Social Networks and Chat Rooms, Play It Safe On the Internet!, Attachments and Viruses, Cyberspace Continues to Expand, Timeline, Glossary…

Microworlds

Introducing Atoms and Molecules - What Are Atoms and Molecules?, Matter, The Way Things Are, Differences, All About Atoms - Take a Closer Look, Large and Small, Atomic Numbers, Mass Numbers, Electron Shells, Amazing Elements - Think of an Element, The Elements, Important Elements, Code Names, Making up Molecules - All the Same, What's in Water?, Molecule Patterns, Showing Molecules, Pictures of Molecules, Bonding and Reacting - Counting Electrons, Getting Together, Covalent Bonding, Ionic Bonding, Chemical Reactions, Reactions Everywhere…

MP3 Players

Enjoying Recorded Music, The History of Recorded Music, How Does MP3 Technology Work? - Technology of your MP3 player, MP3 Players Through the Years, Choosing an MP3 Player, Enjoying MP3 Technology, Beyond the Basics, Cool Gear for Your MP3 Player - Speakers and Headphones, Docking Stations, Child Friendly Mp3 Players, Waterproof MP3 Headphones, Glossary…

Our Footprint on Earth

Your Human Footprint, Fossil Fuels Affect the Environment - ALTERNATIVES TO FOSSIL FUELS, Rain Forests - WHERE IN THE WORLD CAN YOU FIND A RAIN FOREST?, The Dangers of Chemical Pesticides, A Shift to Clean Energy Sources - OTHER RENEWABLE ENERGY SOURCES INCLUDE:, Personal Choices, Your Water Footprint, Your Carbon Footprint, Prescription for a Healthy Planet, GLOSSARY…

Restoring Wetlands

What are Wetlands?, The Importance of Wetlands, Animals of the Wetlands, The Destruction of Wetlands, The Everglades: A Wetland in Crisis, Restoring the Everglades, The Arcata Marsh, The Arcata Marsh at Work, Is There Hope for the Bar-Tailed Godwit?, GLOSSARY…

Rocks, Minerals, and Soil

Earth's Ingredients - Rock Basics, Minerals; Unique in Structure and Make-up, Three Types of Rock - Rock Formed by Cooling and Hardening, Rock Formed From Particles, Rock Formed By Heat and Pressure, Looking at Minerals - Crystal Shapes, Other Properties of Minerals, Soil Formation - Life in the Soil, Soils Form Differently, Layers of Soil, The Changing Earth - The Rock Cycle, Protect Resources, Glossary…

Rot and Decay

LIFE AND DEATH - A Natural Cycle, Make Way, Nature's Recyclers, A Balancing Act, The Food Chain, ALL ABOUT GARBAGE - Types of Garbage, Lots of Garbage, What Rots?, To Rot or Not?, Made to Last, THE DECOMPOSERS - Tidying Up, Tiny Decomposers, Burying Beetles, Bacteria, Fungi, FOOD FOR DECOMPOSERS - Woody Home, Dung!, Manure Enriches the Soil, Mold, Keeping Healthy, In a Compost Bin, House Rot, RECYCLE - Dung Power, Why Recycle?, Using Energy, Waste and Need, What's Recycled?, Dangerous Garbage…

Using Scientific Tools

Using Tools in Science - Tools Extend Us, The Right Tool, TELEVISION, MUSIC PLAYER, LIGHT BULB, CELL PHONE, Scientific Tools Everywhere, Tools That Extend the Senses - Observing Far Away, Types of Telescopes, Observing Close Up, How an Optical Microscope Works, Measurement Tools - The Metric System, Measuring Temperature, Different Temperature Scales, Measuring Weight, Using an Equal-Arm Balance, Models as Tools - PHYSICAL MODELS, Models of How Things Work, TWO-DIMENSIONAL, THREE-DIMENSIONAL, Computer Models, Scientific Tools Are Changing - Computer Technology, Tiny Technology, Tools are Tools…

Solar Energy

Energy - Fuel for Thought, Fossil Fuels, Solar Energy, What makes up the Sun?, Where does the Sun's Energy Go?, Plants and Solar Energy, Early uses of Solar Energy, Global Energy Sources, Solar Energy Today, Solar Thermal Collectors, Solar Cells, Making Solar Cells Better - Solar Vehicles, Solar Aircraft, Solar Energy Advantages and Disadvantages, Can Solar Energy Brighten our Future?, Solar Timeline, Glossary…

Sorting the Elements

Elements and Atoms - Atoms and Elements, How Many Elements Are There?, Discovering the Elements - More and More Elements, Elements in the Sun, Mendeleev's Table, Rows and Columns - Looking at the Groups, Discovering the Noble Gases, Common Elements - Earth Elements, Water Elements, Air Elements, Elements of Life, Elements in Space, Metals - Metal Reactions, Different Metals, Nonmetals - Common Gases, Solids, Elements into Compounds - Joining Up Atoms, Reacting With Other Elements, Organizing Chemistry, Full Periodic Table…

Space

WHAT IS OUTER SPACE?, THE SOLAR SYSTEM, THE EARTH'S PLACE IN SPACE, THE MOON, THE SUN, THE EIGHT PLANETS - Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, OTHER OBJECTS IN SPACE - Dwarf Planets, Comets, Asteroids, Meteoroids, Stars and Galaxies, Stars, Galaxies, TIME LINE OF SPACE EXPLORATION, Websites to Visit/Further Reading - Questions to Consider, Websites to Visit, Further Reading, GLOSSARY…

Turn on the Light

Power Plant to Bulb - It's All About Energy!, Energy, All About Electricity - All About Everything, All About Atoms, Current Electricity, Bump!, + and −, Static Electricity, Opposites Attract, Making Electricity - Steam to Electricity, Sending Elecricity, The Grid, Voltage, From Substation to House, Safe to Use, All in a Circuit - What Makes a Circuit?, Battery Power, How a Battery Works, Flat!, Home Circuits, Conductors and Insulators, Electricity at Work - Keep in Touch, Moving Pictures!, Chat, Electronics, On the Move, Under the Hood…

Understanding Models

Models Help Us Test New Designs, Scale Models, Graphical Models, Conceptual Models, Mathematical Models, Computer Models, Models in Astronomy, Models Help Us Understand Living Things, Models Help Us Understand Things Too Small to See, GLOSSARY…

Video Games

Enjoying the Game, The History of Video Games, The Evolution of the Console, Handheld Games Through the Years, Exploring Genres of Video Games - Maze Games, Platform Games, Puzzle Games, Adventure Games, Racing Games, Sports Games, Music Games, Other Ways to Play, Careers in the Video Game Industry, Glossary…

Weather

CHANGES IN WEATHER - Thermometers: How They Work, Sunlight, WATER IN THE EARTH SYSTEM - The Water Cycle, Rain, snow, sleet, hail, Create Condensation, Fog, Clouds, AIR ALL AROUND US - The Atmosphere, SEASONS, CLIMATE, AND TEMPERATURE - Seasonal Change, Warm Rays, STORMS - Lightning and Thunder, Calculate the distance of lightning, Fronts, Floods, Tornadoes, Hurricanes, Categories of Hurricanes, Blizzards, WEATHER FORECASTING - Thermometers, Make your own barometer, Weather Maps, Websites to Visit/Further Reading - Questions to Consider, Websites to Visit, Further Reading…

What Happens To Your Food When You Eat?

GETTING STARTED - Into Your Body, What Is Digestion?, How Is Food Broken Down?, How Do Enzymes Work?, WHERE DOES FOOD GO WHEN YOU EAT? - What Is an Organ?, Which Organs Form My Digestive System?, The Long Journey, WHAT HAPPENS IN MY MOUTH? - Why Is My Tongue Important?, What Does Smell Have To Do With It?, WHY DO I HAVE A STOMACH? - How Big Is My Stomach?, What Does the Stomach Do?, Are There Enzymes in the Stomach?, WHAT IS GOING ON IN MY INTESTINES? - A Closer Look at the Small Intestine, What Is the Small Intestine's Main Job?…

Wind Energy

Wind – Energy of Motion, Energy Needs, Global Energy Sources, Harnessing Wind Power, Windmills, Wind Turbines, How Turbines Work, Wind Turbine Power, Small Wind Systems, Wind Farms, World Wind, Advantages and Disadvantages - Wind…, …but, Working Together, Wind Energy Timeline, Glossary…