Homework Helpers

Geography, Geology, and Science

Biodiversity
Biodiversity provides resources for learning about genetic diversity, species diversity, & ecosystem diversity. Explore databases on amphibians, birds, corals, fish, fires, invasive species, plants, oceans, watersheds, & wetlands. Examine genetic information on flies, worms, mice, & trees.

Botany for Kids
This site offers activities for learning how leaves change color, how flowers grow, how plants fight disease & insects, why plants come in so many colors, tips for growing plants, & facts about fungi. Learn about seeds, composting, endangered plant species, fire, lichen, & "plant hunters" -- scientists who collect plant samples from around the world to trace a plant's evolution.

Dinosaurs
Helps students answer questions about dinosaurs: What makes a dinosaur "a dinosaur"? Where did they live? What caused their mass extinction? Students can participate in a virtual dinosaur discovery, follow milestones in dinosaur evolution, & see behind-the-scenes slideshows of the lab environment where vertebrate specimens are prepared for exhibits & research.

Dinosaurs: Ancient Fossils, New Discoveries"
Updates what we know about dinosaurs from recent studies of their tracks, how they moved, & their unusual body parts (e.g. spikes, armor). "Extinction" examines the mass extinction 65 million years ago -- the possible causes, how many of the plants & animals alive at that time died out, & which dinosaurs survived. Interviews with paleontologists are included. 

Earth's Magnetic Field
The POETRY website, which explores solar storms & how they affect us, space weather, & the Northern Lights. A 64-page workbook of hands-on activities examines Earth's magnetosphere. Create a classroom magnetometer. Solve the space science problem of the week.

Environmental Literacy Council
Features labs, projects, & activities for studying the air & climate, land, water, ecosystems, energy, food, & environment & society. Learn about the carbon cycle, forests, fossil fuels, nuclear energy, renewable energy, photosynthesis, soils, thermodynamics, waste management, water quality, weather, & more. Find out about legislation & treaties, resources in your state, & science in the news.
 
Geologic Time: The Story of a Changing Earth
Examines the history of Earth. Learn about the formation of Earth, dating the age of rocks, geologic time, plate tectonics, climate change, ocean circulation, evolution, extinction, ecology, & topics related to paleobiology.
 
Gravity Probe B
A "relativity gyroscope" experiment designed to test two unverified predictions of Albert Einstein's general theory of relativity (1916): that the presence of a mass in space, such as the Earth, would warp local spacetime, creating a dip or curve in spacetime, & that the rotation of a mass in space would twist or drag the local spacetime frame around it. An educator's guide & space science activities are included. 
 

 
Guide for Teaching About Coastal Wetlands
Helps students identify types of wetlands & understand the role of wetlands in controlling erosion, retaining water, filtering pollutants, & serving as nurseries for young organisms. The barrier islands, the Mississippi River, & the consequences of wetland loss are examined. 

Infrared Astronomy Tutorial
Examine infrared light, how it was discovered, infrared astronomy, atmospheric windows, & more. An infrared astronomy timeline is included, along with links to news & discoveries, images, & classroom activities. (NASA)

Investigate the Earth System. Understand the Earth's atmosphere, lithosphere, cryosphere, and biosphere as a single connected system.
 
National Geographic Homework Help
I Need to know how much hippos eat, what explorers Lewis and Clark packed in their first-aid kit, where Giza is, or how fireworks work? You've come to the right place. Here are our most fact- filled features, perfect for reports, presentations, homework or your curiosity.
 
NSF Special Reports
Web-based reports on language & linguistics, Einstein & physics, weather patterns, the chemistry of water, the 2004 tsunami, arctic climate research, Admiral Byrd's historic flight to the South Pole (1929), cyberinfrastructure, fossils, earthquake engineering simulation, ecology of infectious diseases, robotics, visualization of research results & scientific phenomena, the world's first electronic nervous system, teacher institutes, & Nobel prize winners. (NSF)

Ology
Kids explore archaeology, astronomy, biodiversity, Earth, Einstein, genetics, marine biology, paleontology, & other "ologies." Topics include the Incas, the ancient city of Petra, gravity, Mars, the Milky Way, tree of life, saving species, tectonic plates, rocks, deep sea vents, matter & energy, space & time, a genetic journey, a nature & nurture walk, quest for the perfect tomato, imagine it's 2020, worlds within the sea, ocean creatures, & fighting dinosaurs. (SI)

Photosynthesis
Plants, The Sun, and Light: A Guide to Photosynthesis for Kids—This site is packed with information.

Radio JOVE: Planetary Radio Astronomy for Schools
Students & amateur scientists observe & analyze natural radio emissions of Jupiter & the Sun. Through the study of their magnetic fields & their plasma (charged particle) environments, we are better able to understand the Earth. (NASA)

Rocks & Images
Learn about rocks and minerals.

Learn how volcanoes are formed,  which volcanoes are still active, the different types of volcanoes and a lot more.