Ninth graders identify the different layers of soil. In this earth science lesson, 9th graders explain how limestone layers are formed. They identify the different parts of the coral colony.

In this Dig Magazine archeology quiz, students answer 4 multiple choice questions covering a variety of topics. Page contains answer and additional resources link.

Students are introduced to tree structure and use. They identify their special tree using all senses except sight. Students identify six different internal parts within a cross section of tree trunk (bark, phloem, xylem, cambium,...

A slideshow and a short multiple-choice quiz on the topic of soil and its importance to living things.