Challenge scholars to tie knots like a sailor. With help from tutorials and plenty of practice, learners tie the perfect reef knot, clove hitch, bowline and more!

Young scientists investigate chemical and physical changes to the states of matter—gas, liquid, and solid—as well as solutions and suspensions with a variety of demonstrations, grand conversation, and an interactive quiz to check for...

Explore the world (our world) of melting ice caps. Why are these caps melting? What is the effect of melting ice caps? Dive into the ever-present issue of global warming with a resource that has learners looking at data and participating...

Investigate how temperature affects the density of water and stratification that occurs in bodies of water when temperatures vary. Water of differing temperatures is given different colors to see the layers that form. The lesson is meant...

Students observe crystals and their shapes and formation. For this crystal formation lesson, the teacher prepares crystal gardens for the students to observe, then the class finds examples of crystals in nature and observe a teacher...

If the delay between a sound and its echo is less than 1/10th of a second, the human ear can’t distinguish it. Through the use of a Slinky, rubber band guitar, and straws, scholars explore where sound comes from and how it travels....

Students gain an understanding of necessary components required within a healthy, sustainable environment and ways human actions can impact that balance while discovering how to recognize and analyze explanations and models used in...

Students observe and describe the properties of rocks and their significance relationship in the environment. They explain the implications of destroying habitats and the importance of rebuilding them.

Students model the soils layers using Oreo's. In this lesson students use their favorite food items to create a model of soil layers. A discovery lesson from a youth camp is adapted for classroom modeling and discussion of soil...

Fourth graders are introduced to the characteristics of a variety of minerals and rocks. As a class, they are shown rocks and minerals and asked to describe them as a geologist would. They work together to measure and record their...

Students study hearing and are able to differentiate between different sound waves.  In this sound wave instructional activity students develop a cause and effect model that shows the parts of the ear. 

Students learn about cells. In this cells lesson plan, students take several days to learn about plant and animal cells and make their own edible cells with a cookie and icing.

Students compare the three types of fossils: preserved organisms, mineral replacement fossils, and impression fossils. They create a model of amber, sponge fossil, and make traces of fossil.

Fourth graders examine a bat and determine if it is a pest or pal. They identify three types of bats native to the state of Pennsylvania. They also identify the parts of a bat and write a report on the bat of their choice.

Young scholars discuss what to do with a very sick fish and help it to die without much pain. As a class, they answer questions about the fish and if they believe it is suffering or not. Using their own experiences, they share how they...