DNA Isolation from Onion

Is DNA still present after picking fruit or cooking vegetables? Biology scholars extract and collect DNA strands in an impactful lab. Working groups prepare their samples and compare their results to negative and positive standard...

Students experience a "hands-on" activity to get visual evidence of the physical nature of DNA and the process of DNA purification. They explore one method of chromosomal DNA isolation and DNA extraction.

Take your advanced biology learners across the great divide: where cells divide, that is! Although it was created as a chapter reading guide, having your class complete this worksheet is not only appropriate, but also highly valuable in...

Unleash the power of ... blackberries! Science superstars create solar cells using the juice of berries or leaves of a citrus tree in an engaging lab. In addition to offering a plethora of resources, the teacher's guide gives background...

Whenever your students have a question about a stage of mitosis, you can be sure that viewing the relevant slide from this show will help their understanding. Covering the complete process of mitosis, this PowerPoint has images and...

A presentation which concentrates on the development of the blastocyst and embryo after fertilization. Topics start with the scientific names and processes at each stage and then develops into an explanation of embryonic and somatic stem...

Explore the structure of cell membranes including cholesterol, glycolipids, glycoproteins, phospholipids, and proteins. The video shows and discusses the fluid mosaic model as well as how cell walls differ from cell membranes. 

Take a close up look at the replication of DNA and protein synthesis with this animated clip. The process is described in detail for your biologists. Utilize technology in order to see the inner workings of the cell.

Use this resource to have your class learn about the cell. This resource walks learners through the construction of a model of a cell. This project is completed in a cooperative learning group, and  reinforces the higher-order thinking...

Why are Henrietta Lacks' cells immortal? The answer is that no one really knows. But much has been learned because they are. Check out this video that introduces some of these remarkable discoveries.