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Oxford
The Johnson County Conservation Board and Iowa DNR dredged the lake in F.W. Kent Park and created interconnecting catch basins to reset its water quality, using testing to monitor the progress.
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Waterloo
After an apple is split open and exposed to oxygen, the flesh slowly turns brown.
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Runnells
The trees were knocked down due to a tornado that went through the area.
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Mitchellville
The patterns of a swing in motion in various situations can be observed and measured.
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Des Moines
The same balloons can act differently in different settings.
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Des Moines
Multiple animal tracks are visible in the fresh, morning snow. There appear to be three sets of tracks that seem to come close to the backyard of a house.
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Des Moines
Releasing carbon dioxide from a canister will cause the canister to feel colder, even causing frost to form when all of the gas is expelled rapidly.
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Pleasant Hill
Animals such as birds and squirrels build nests in trees and bushes outdoors.
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Runnells
Evidence of weathering and erosion is visible through rock cutouts, changes in the shape of the land and water bodies, and sometimes the damage left behind.
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Roland
Weather forecasting can help us safely respond to severe winter weather.
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Sioux Center
Understanding butterfly characteristics can tell us even more about these creatures and the environments they live in.
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Pleasant Hill
After the leaves change color in the fall, they fall off and don't grow back right away.
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Pleasant Hill
As the seasons change, the sun sets earlier at night and rises later in the mornings.
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Pleasant Hill
When conditions are right both inside and outside, condensation is visible on a window.
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Pleasant Hill
The trees appeared white from snow, fog, temperatures or precipitation.
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Bondurant
It's possible to see both the sun and the moon during the day.
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Northeast
Some trees become full of leaves in the spring and summer, and during the fall, the leaves change colors and fall from the trees.
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Pleasant Hill
Watching the weather forecasts and having materials necessary for severe weather helps to predict and prepare for these events.
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Madison County
The amount of daylight we have changes as the months go by
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Pleasant Hill
Stink bugs tend to show up in homes during the fall and winter.
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Schaller
Large wind turbines surround many small farming communities in Iowa.
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Eddyville
Eddyville Sand Dunes Prairie is a patchwork of wind-blown sand, glacial till, associated wetlands, and woodlands, and the resulting biodiversity there is truly unique.
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Spirit Lake
During extreme cold temperatures, the air temperature can have an usual effect on boiling water.
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Runnells
When hiking, you risk the chance of bringing back some cockleburs.
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Carlisle
When a river freezes over, the water in the middle is sometimes still running.
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Bondurant
The corn appears to be ready for harvest due to the amount of water and sun it has received.
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Polk City
Crescent-shaped shadows can be seen during a 2017 eclipse.
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Ames
The angle and distance between bags boards can impact how the game is played.
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