A puzzle isn't about the individual pieces, but how they work together. Scholars assemble a puzzle and discover missing pieces. They write a description of what they expect these pieces to look like, including as many details as...

Newspapers aren't only for reading—they're for learning skills, too! A journalism unit provides three lessons each for primary, intermediate, and secondary grades. Lessons include objectives, materials, vocabulary, and procedure, and...

Only 10 percent of an incandescent bulb's energy is used to create light; the remaining 90 percent is heat. In the unit of activities, young chemists examine energy through hands-on activities, videos, discussions, and...

For scholars tired of reading the textbook, this unit includes nine hands-on lessons. Through group work, lab activities, experiments, and even one inquiry-based lesson, scholars apply knowledge about cells, genetics, and...

Don't shine like a diamond, refract light like a diamond. Young scientists use an acrylic block and a laser light to observe refraction. Advanced scholars figure the sine of the angles of reflection and incidence as well as mastering...

Time to learn about sundials. Scholars see how to build sundials after learning about Earth's rotation and its relation to time. The unit describes several different types of possible sundials, so choose the one that fits your needs — or...