After an apple is split open and exposed to oxygen, the flesh slowly turns brown.

Weather forecasting helps people prepare their homes and businesses, and remain safe during natural disasters.

Milk is collected from cows and, after a while, the milk forms two different layers. They look somewhat similar but, when poured out, the layer on top is thicker than the layer below.

Two photos, taken at the same moment but in different parts of the world, show different views of the sky.

Dry run creeks are a strategically placed design solution for flood mitigation.

Fog is visible at the bottom of a hill on a summer evening.

The Eastern Iowa tornado of March 2023 demolished a century farm. The rebuilding process included balancing several constraints.

Retention ponds are artificial structures designed to retain and treat contaminated stormwater runoff.

"Al dente" means "to the tooth" in Italian and refers to the ideal consistency of pasta when cooked. Besides a more appealing taste, cooking pasta "al dente" provides inherent nutritional value.

Urban runoff is the trash run off that occurs after each major rain or wind storm, and in Iowa results in millions of pounds of trash being washed into Iowa waterways.

A straight stick placed in water can appear to be bent at an angle.

When working with natural gas, a spark can mean danger. Selecting tools made from the right materials can reduce that danger.

The musk thistle is an invasive species must be controlled to prevent its spread.

Foxglove has a tightly connected ecological relationship with bumblebees.

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.

At sunrise, the sun is coming above the horizon and creates a beautiful mix of many different colors. There are many different reasons that these colors are so vibrant in Iowa specifically.

Animals, including dogs, change their bodies and lifestyles with the seasons and other situations in order to survive.

Sundogs are colored spots of light visible around the sun during cold temperatures.