Biology Junction
Enzymes
Many people know enzymes help with digestion, but few realize enzyme production decreases with age, making it more difficult for bodies to digest certain foods. A worksheet offers 28 fill-in-the-blank and short-answer questions over...
Virginia Department of Education
The Effects of Heat and Acid on the Enzyme Catalase
How quickly do enzymatic reactions occur? Assist the class as they examine heat and pH change to determine the rate of chemical reactions using catalase as an enzyme. Watch them "glow" with excitement!
Virginia Department of Education
Physical and Chemical Properties of Water
How can you effectively provide detailed concepts of water properties to your high school class in a way they find exciting and challenging at the same time? By letting them play, of course! Through a variety of experiments, pupils...
Curated OER
Separating a Starch-Glucose Mixture Using Gel Filtration
Students experiment using the basic principles of gel filtration. They use the gel filtration technique for testing for the presence of specific substances. Students discover that starch is a larger molecule than glucose.
Curated OER
Learning the Structure and Function of DNA
Young scholars read about Humane Genome Project, examine structure and function of DNA, and participate in gel-electrophoresis lab. They complete Internet activity to test their knowledge of DNA.
Curated OER
Inquiry in Science Using an Animal Behavior Model
Young scholars observe a planaria without a microscope and with a stereoscopic microscope. They draw the planaria and describe its motion and eating habits. Students research planarias various body systems and behavior. They design an...
Perkins School for the Blind
Building an Organic Molecule
Glucose is a simple sugar and a molecule that can be illustrated through modeling. Scientific investigators with visual impairments use hands-on models to reconstruct the process of bonding molecules. The tools used in this activity are...
Curated OER
Tour of the Cell 1
Each of these slides deals with an individual organelle and displays a diagram along with labels of the structures. The most useful components of this slideshow are the summaries of functions and descriptions of how the organelles are...
Curated OER
Immune, Lymphatic System
A fantastic slideshow that has images, details, definitions and trivia to accompany each structure and response involved with the immune system. The slides are very useful for all levels of the immune response. A complete sets of notes...
Curated OER
The Cell Cycle: Cell Growth, Cell Division
Help your students understand cell division. Explore the topics of mitosis by examining the details of chromosomes at interphase, metaphase, anaphase, prophase, and telophase. Wonderful slides will keep your students' attention while...
Curated OER
Biogeochemical Cycles Study Guide
The four cycles in Earth's biogeochemical system are covered in this instructional activity. Science stars fill in the blanks or define vocabulary terms pertaining to the hydrologic, carbon, nitrogen, and phosphorous cycles. This...
Curated OER
Tour of the Cell 2
As your class views each slide, they will be introduced to the organelles and structure of the cell. Details about structure and function are given and also some trivia about their frequency and population. There is also some...
Curated OER
DNA Extraction from Yeast Cells
Students explore DNA. They work in groups and mix prepared detergent/ salt solution, meat tenderizer solution, Fleischman's yeast and water to extract DNA from yeast. Observations are recorded.
Curated OER
Genetically Engineered Food: Altering the Blueprint
Students explore the genetic engineering of food. In this health lesson students explain how DNA technology can be used to produce food.
Curated OER
Lipid Worksheet
In this lipid learning exercise, students answer questions about the structure and functions of lipids. They read about the three main lipids in the body including triglycerides, phospholipids and cholesterol and answer questions about...
Curated OER
SEPARATION OF A STARCH-GLUCOSE MIXTURE USING GEL FILTRATION
High schoolers make a starch-glucose solution and pour it through gel in order to separate the starch from the glucose. They examine how starch is a larger molecule than glucose and test for the presence of these substances using other...
Curated OER
How Genes Work Lesson Plan
Students define the key terms that are the structure and function of DNA. In this genetics lesson students complete a lab activity in which they construct a model DNA structure.
Curated OER
Biotech in a Bag
Students carry out a series of experiments using self-locking plastic baggies. Each experiment demonstrates a phenomenon or principle of biotechnology.
Curated OER
What is Everything Made of?
Students observe a demonstration on how we see space between water molecules. In this experimental lesson students discover what elements make up the things around them and discuss what they learned.