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Video
Oelwein
Tossing hot water into frigid air is an example of water changing states from liquid to gas.
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Fayette County
Grannis Creek falls is a moderate-sized, spring-fed stream in the karst topography of Iowa's Driftless Region.
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Polk County
At Lake Red Rock's Mile-Long Bridge, indicators alert drivers that weather conditions could make driving hazardous.
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Dysart
A fallen oak log is slowly being decomposed by saprophytic turkey tail mushrooms.
Chart
Davenport
Data for Iowa's bald eagle population and for the Mississippi River at Lock and Dam 15 indicate population trends since 1994.
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La Porte City
Woodpeckers damaged an ash tree while searching for overwintering emerald ash borers.
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Oelwein
Rime ice and hoar frost are two processes that occur during freezing temperatures.
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Rowley
Bearbower Sand Prairie, a windblown sand prairie in east central Iowa, is home to many unique plant and animal species.
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Northeast
Lake Superior agates can be found in and around the Volga and Turkey rivers.
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New Hartford
After the flood of 2008 many towns in Iowa decided to try different flood mitigation efforts.
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Northeast
During the early Paleozoic, much of Iowa was covered by a shallow sea.
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Dike
Every spring in Iowa many farmers either have to pick up rocks from their fields or pay for it to be done.
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Fayette County
Many people believe Iowa's landscape is nothing more than flat plains. However, the landscape in northeast Iowa is very different than the rest of the state.
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Muscatine
A completed livestock shade barn is a structure with only three walls.
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Des Moines
A series of graphs illustrate how the amount of daylight changes at different times of the year.
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Buchanan County
Tilled and no-till crop fields can impact the movement of snow across the landscape in different ways.
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Dundee
Asiatic bittersweet is an invasive plant in Iowa and conservationists are working on solutions to control the spread.
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Des Moines
This video discusses a lawsuit claiming that farm runoff is harming Iowa's water supply.
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Rockford
Kiln Trail in Floyd County is one of the most abundant places in Iowa to find and collect fossils.
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Maquoketa
Each of the rock features at Maquoketa Cave State Park were formed over time through a variety of geologic processes.
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Hamburg
In 2019, flooding hit Hamburg, Iowa, leaving many wondering about the impacts and likelihood of future flooding.
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Chariton
Pink blossoms cover the Red Haw State Park redbud trees.
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Des Moines
Protein levels in Midwestern soybeans have been decreasing over time.
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Spencer
Prairie Flower Farm, a northwest Iowa farm, grows native plants instead of corn or soybeans.
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Madison County
In 2019, a debate occurred regarding the building of wind farms in Madison County, Iowa.
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Fairfield
Polled (hornless) herefords originated as a mutation.
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Muscatine
The school flagpole's shadow appears to "move" across the ground throughout the day.
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Dundee
Extensive exposed limestone features can be seen at Backbone State Park.
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Davenport
Birds respond to the impact of lock and dam on a river.
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