Students are introduced to the different types of symbiotic relationships that exist in ecosystems in this life science worksheet.

Explore how traits are influenced by both genetic and environmental factors with this life science worksheet!

Learn about biodiversity and its impact on an ecosystem’s stability with this informative middle-grade worksheet.

Use this engaging worksheet to introduce students to the geologic time scale and the pieces of evidence scientists use to determine Earth’s history!

Students explore the mechanics of the respiratory system in this life science worksheet for middle school.

Reunite a family and their long-lost dog with the help of DNA testing in this middle-grade worksheet!