Reading a Triple Beam Balance
By Jill Crowder
Students identify the parts of a triple beam balance and practice measuring the mass of objects.
Heat Transfer: Conduction, Convection, Radiation
By Laurie Jarvis, Deb Simonson
In this animated activity, learners explore three major methods of heat transfer and practice identifying each.
Atomic Symbols, Atomic Numbers, and Mass Numbers
By Debbie McClinton, Dr. Miriam Douglass, Dr. Martin McClinton
Learners read definitions of atomic symbols, atomic numbers, and mass numbers and then answer questions about the number of neutrons, protons, and electrons in select elements.
How Pressure Changes Boiling Temperature
By Terry Bartelt, Terry Fleischman
Learners study the effect that pressure has on boiling temperatures. Once a liquid has reached a full boil, additional heat does not raise the liquid’s temperature; however, pressure can vary the boiling point of a liquid. A brief quiz completes the activity.
Identifying Eukaryotic Animal Cell Organelles
By Barbara Liang
In this animated object, learners are introduced to the structure and function of animal cell organelles.
By Terry Bartelt
In this animated object, learners examine how thermal energy is transferred by conduction, convection, and radiation. A brief quiz completes the activity.
Learners examine the meaning of oxidation, reduction, and half-reaction, and watch a film showing the deposition of copper metal from the reduction of copper (II) ion by aluminum. A brief quiz completes the activity.
In this animated object, the learner examines 17 types of joint movement.
Skin and the Integumentary System
Learners examine the structure and function of skin including the production of melanin.
A Typical Animal Cell
By Gerald Heins
In this interactive object, learners identify the parts of an animal cell and its organelles.
Newton's Second Law of Motion - Video
By Kim Ristow
In this learning activity you'll examine force, mass, and acceleration to understand this "Law of Acceleration."
The Cell: Passive Transport Diffusion (Video)
Explore what passive transport diffusion is and how it moves water through a membrane.
The Cell: Passive Transport Diffusion
In this animated object, learners view molecules as they collide and move between two different solutions. They also observe what happens when the temperature of the solutions is raised or lowered.
The Cell: Passive Transport Osmosis
In this animated object, learners examine water molecules moving through a semipermeable membrane.
A Typical Animal Cell (Video)
By Becky Polk-Pohlman
In this video, learners view the parts of an animal cell and its organelles.
The Anatomy of the Heart (Video)
In this video learners view the valves and chambers of the heart.
The Anatomy of the Heart
By Wendy Dusek
In this animated and interactive object, learners identify the valves and chambers of the heart.
Protein Synthesis (Video)
In this video, you'll review how every protein molecule of an organism is synthesized.
Red Blood Cells
In this animated and interactive object, learners examine the red blood cell's life cycle and function. A brief exercise completes the activity.
Biomolecules: The Proteins (Video)
Explore what proteins are, their structure, and their functions.
Biomolecules - The Lipids (Video)
In this animated object, learners examine neutral fats, phospholipids, and cholesterol. The molecular formula and general function for each are shown.
Fruit: Triumph of the Angiosperms
Learners read how fruits are classified according to their texture and according to how they developed from their floral anatomy.
In this well-illustrated object, learners examine basic floral anatomy. The flower is the reproductive organ of the angiosperm.
What Is Electricity?
The learner studies how electrons travel from one atom to the next. Examples demonstrate how voltage is created by the use of a battery or through magnetism. A quiz completes the activity.
Newton's Third Law of Motion - Video
In this learning activity you'll examine Newton's Third Law: for every action, there is an equal but opposite reaction.