Africa: Peace Corps
offers lessons on stories, letters, photos, and study units from experiences of Peace Corps volunteers across Africa. Topics include folk tales and patterns in them, racial prejudice in South Africa, life in a village of Tanzania, traditional healers and HIV/AIDS, the meaning of wealth, sharing and generosity, what it takes to be a hero, time and punctuality, perspectives of different cultures, and water.
TÜ Loodusteadusliku hariduse lektoraadi vastavatel kursustel (Loodusteaduste visualiseerimine) osalenud õpetajate koostatud interaktiivsed mudelid bioloogiliste protsesside tundmaõppimiseks. Kuigi mudeleid ei saa lugeda lõplikult viimistletuks, on nad õppeprotsessi visualiseerimiseks asjakohased: kasvõi ideede saamiseks. Kasutajal on soovitav fail enne oma arvutisse salvestada ning vajadusel täiendada.
Calisphere Themed Collection - 1950s-1970s: Social Reform: Everyday Life
The images in this topic provide a glimpse into the daily lives and changing lifestyles of Californians during the 1950s, 60s, and 70s, as the country moved from postwar to protest. From birthday parties and family meals to homecoming rallies and political protests, these photographs reflect how life looked during those years. Two images show Californians interacting with political figures who shaped those decades.
Calisphere Themed Collection - 1929-1939: The Great Depression: Everyday Life in Hard Times
The images in this topic provide a look at the everyday lives of Californians during the decade of the 1930s. Although many people struggled to survive during the Great Depression, these photographs also show that some still found employment, and many managed to enjoy themselves despite the hard economic times.
Calisphere Themed Collection - 1780-1880: California in Transition: Early California Exploration and
California has always been a place of cultural interaction. Early California evolved and changed with each new group of settlers. These images depict the developing interconnectedness of California's early cultures. They also underscore the importance of movement and later settlement of peoples in California. Some of the modern images underscore the contested and often romanticized nature of California’s Spanish and Mexican heritage. This is a collection of primary source images.
One reason why caecilians are considered to be amphibians is because they go through metamorphosis to reach adulthood. Caecilians are unique amphibians because some of them lay eggs, but some of them give birth to live young.
Breathing tube of a mosquito larvae
The breathing tube is one organ of the respiratory system (along with the lungs in animals). The breathing tube allows for the intake of oxygen and the disposal of carbon dioxide.
Boy on trampoline
The boy would feel less secure if the safety net around the trampoline wasn't there. Humans have an innate need to feel secure in their environments.
Blooming prickly pear cactus (Opuntia) from the Sonora desert
Cacti are often overlooked as flowering plants. In fact, cacti bloom with colorful flowers and reproduce like all other angiosperms.
Bee on flower
Bees visit flowering plants to collect nectar so they can store it as honey back at their hives. As a bee visits one flower after another, pollen collects on its entire body and especially on the legs. Bees help pollinate flowers while they collect nectar. This is a mutualistic behavior.
Basic Needs: U.S. currency
Humans need to feel financially safe and stable.
Balance and flux
Ecosystems and populations of organisms within ecosystems function by the principle of balance and flux. Balance can be thought of as a state of equilibrium, or a state of equal changes between two sides. Flux can be thought of as a rate of flow or changes. Even small changes in an ecosystem's or population's balance and flux could lead to disaster.
Fly on a leaf
Flies are insects that eat dead plant and animal material. Their ingestion and digestion of detritus leads to respiration and excretion of important nutrients back into the soil and water.
3D Global Methane
An animation of the three-dimensional structure of global methane evolving over time, from a global data assimilation model
Arctic Ozone from February 1, 2003 through March 30, 2003
This visualization shows the northern hemisphere ozone hole from February 1, 2003 through March 30, 2003.
West Africa Dust Storms
On the Coast of West Africa, dust storms are a common occurrence, if you take a look at this one, its about the size of Spain.
Annually Occurring Aerosol Features: Biomass Burning in Southern Africa from July to September 1986
Aerosol index over Africa from July 2, 1986 through September 7, 1986 as measured by the Nimbus-7 Total Ozone Mapping Spectrometer (TOMS)
High Resolution 2-D Numerical Simulation of Emergence of Magnetic Flux Through the Solar Atmosphere
This series of animations (animations 107, 1416, 1417, and 1418) show sheets of magnetic flux undergoing velocity perturbations. The conditions for each simulation are outlined within the video.
A 3-Dimensional Model of the Magnetosphere (WMS)
The earths magnetosphere protects the earth from high-energy charged particles coming from the sun. Some charged particles are deflected by the magnetosphere, while others become trapped and produce the aurora. This presentation shows a 3-dimensional model of the magnetosphere. The features that it highlights are flat ribbons representing the paths of charged particles deflected by the magnetosphere, triangular ribbons representing magnetic field lines, and colored surfaces representing constant
El Nino-La Nina Sea Surface Temp and Height Anomaly 3D Isometric View: January 1997 through November
An animation of sea surface temperature and height anomalies in the Pacific for January 1997 through November 1998 from NOAA AVHRR and TOPEX Poseidon