K12 Reader
Active and Passive Transport
Active and passive systems used to transport materials to and from cells are the subject of a comprehension worksheet that asks readers to use information from the article to answer a series of questions based on the text.
Forest Foundation
The Nature of Trees
Young botanists examine the different parts of tress and then draw parallels between the functions of these parts and the function of parts of the human body.
Curated OER
Respiration
Pupils explore Adenosine Triphosphate and how energy is released. They examine the basic process of cellular respiration and draw its chemical formula. After describing cellular respiration and photosynthesis, students compare and...