In this origin of life worksheet, students write answers to five questions. They describe characteristics of the first life forms and how scientists believe oxygen accumulated in the Earth's atmosphere.

In this biology worksheet, students watch a series of videos and complete 10 short answer questions right after. They explain how ART drugs interrupt the life cycle of HIV.

Tropical fish make great art projects! Use paper plates to design, color, and assemble round and oval-shaped fish based on photographs of actual fish found along the Moorea Coral Reef. Kids learn about different fins- including the...

Did you know that Vivaldi wrote "Winter," the final concerto of his The Four Seasons, in the key of F minor to echo the sleigh ride pieces popular at the time? A teacher resource kit, designed to support a study of the work, is packed...

For this classification worksheet, students complete a chart listing the characteristics of each of six kingdoms. They write definitions for three terms.

In this online interactive English vocabulary skills activity, students answer 10 matching questions which require them to fill in the blanks in 10 sentences. Students may submit their answers to be scored.