Properties of Soils

Lewis and Clark Interpretive Center 900 Larsen Park Road, Sioux City, IA, United States

After this lesson, students will be able to list aspects of soil composition; appreciate that soils are living and dynamic; recognize that soils vary in composition; describe where nutrients in soils come from; recognize that plants take up water and nutrients from the soil; and recognize that growing crops can deplete agricultural soil of nutrients.

Free

Fertilizers and the Environment

Lewis and Clark Interpretive Center 900 Larsen Park Road, Sioux City, IA, United States

After completing this lesson, students will be able to recognize that farmland is a resource; appreciate that the world's growing population demands an increase in food productivity; describe the role fertilizer plays in increasing food productivity; distinguish between organic and commercial fertilizers; describe how excess nutrients are harmful to the environment; and identify different sources of nutrient pollution.

Free

Nourishing the Planet in the 21st Century

Lewis and Clark Interpretive Center 900 Larsen Park Road, Sioux City, IA, United States

After completing this lesson, students will be able to appreciate how soil properties contribute to plant health; recognize that nutrient deficiencies limit crop productivity; understand the role of fertilizer in growing crop plants and in restoring nutrient balance to agricultural soils; relate crop productivity to the need for more farmland; and describe challenges associated with feeding the world's growing population.

Free

Event Series Percy’s Pals

Percy’s Pals: Native American Nations

Lewis and Clark Interpretive Center 900 Larsen Park Road, Sioux City, IA, United States

You probably already know that Lewis and Clark encountered Native Americans on their journey. But did you know that Lewis, Clark, and the Corps of Discovery came into direct contact with around 50 Native American Nations? It is important for us to know that Native Americans played a very important role by helping the Corps...

Free
Event Series Percy’s Pals

Percy’s Pals: Native American Nations

Lewis and Clark Interpretive Center 900 Larsen Park Road, Sioux City, IA, United States

You probably already know that Lewis and Clark encountered Native Americans on their journey. But did you know that Lewis, Clark, and the Corps of Discovery came into direct contact with around 50 Native American Nations? It is important for us to know that Native Americans played a very important role by helping the Corps...

Free
Event Series Percy’s Pals

Percy’s Pals: Languages on the Trail

Lewis and Clark Interpretive Center 900 Larsen Park Road, Sioux City, IA, United States

Have you ever played a game of "telephone?" The Corps of Discovery did a lot of that on their trip, sometimes having to have things translated through as many as four other people during a single conversation! We will talk about the importance of being able to understand each other clearly, and learn some fun...

Free
Event Series Percy’s Pals

Percy’s Pals: Languages on the Trail

Lewis and Clark Interpretive Center 900 Larsen Park Road, Sioux City, IA, United States

Have you ever played a game of "telephone?" The Corps of Discovery did a lot of that on their trip, sometimes having to have things translated through as many as four other people during a single conversation! We will talk about the importance of being able to understand each other clearly, and learn some fun...

Free

Event Series Percy’s Pals

Percy’s Pals: Expedition Dwellings

Lewis and Clark Interpretive Center 900 Larsen Park Road, Sioux City, IA, United States

The Corps of Discovery built three temporary forts on their journey, but what did they use for day-to-day shelter? And what types of dwellings did they see in Native American villages? We will talk about how Lewis and Clark designed and built their forts; and how the Native American nations lived in their different homes...

Free
Event Series Percy’s Pals

Percy’s Pals: Expedition Dwellings

Lewis and Clark Interpretive Center 900 Larsen Park Road, Sioux City, IA, United States

The Corps of Discovery built three temporary forts on their journey, but what did they use for day-to-day shelter? And what types of dwellings did they see in Native American villages? We will talk about how Lewis and Clark designed and built their forts; and how the Native American nations lived in their different homes...

Free
Event Series Percy’s Pals

Percy’s Pals: Holidays on the Trail

Lewis and Clark Interpretive Center 900 Larsen Park Road, Sioux City, IA, United States

When we think of holidays,  many of us think about spending time with our families. The Corps of Discovery members had to celebrate many holidays far away from their families. What traditions did they carry with them on the journey? What new traditions did they start? We will answer some of those questions and talk...

Free
Event Series Percy’s Pals

Percy’s Pals: Holidays on the Trail

Lewis and Clark Interpretive Center 900 Larsen Park Road, Sioux City, IA, United States

When we think of holidays,  many of us think about spending time with our families. The Corps of Discovery members had to celebrate many holidays far away from their families. What traditions did they carry with them on the journey? What new traditions did they start? We will answer some of those questions and talk...

Free