Students, in small groups, research Eratosthenes and his calculations of the Earth's radius. They write a summary of the person, the experiments and his calculations to determine how accurate Eratosthenes was in his estimations of the...

Pupils visualize the relation between acceleration and velocity in 2 dimensions. They are introduced to Newton's first law,and Newton's second law. Students work on an exploration activity where they condsider an example of a...

Students solve problems involving exponential, logarithmic, and scientific notations. Using calculators, students explore investment problems. They use a formula and logarithms to determine the years to earn a particular income, figure...

Young scholars examine the positive benefits and negative consequences of genetically modified organisms following a lecture covering key biotech concepts and techniques. Students then conduct and experiment comparing the travel rate of...

High schoolers engage in research about the hantavirus. They use a variety of resources to obtain information. Students distinguish the differences between hantavirus pulmonary syndrome, hantavirus transmission, and hantavirus prevention.

Students will first extract genomic DNA from spinach and perform a restriction enzyme digestion on both the spinach DNA and the plasmid using the same restriction enzyme. They then ligate the cut plasmid DNA with the cut spinach DNA in...

Students review the basic principles of plant cell structure, tissue culture, sterile technique, and cell transformation. Next students complete a plant transformation experiment using whole plant material in order to view evidence of...

Pupils examine analogies and create models to help visualize the concept and technique of basic biotechnology. Common scenarios are used to explain the complex procedures of genetic engineering.

Learners explore the four forces of flight. They investigate the four forces of flight: lift, drag, thrust and weight (gravity). They experiment with flight-testing various objects commonly found around the house and constructing paper...

Pupils explore the basic facts about malaria. They study how the disease can spread so quickly and label the pathway of the malaria parasite.

Students use translations, rotations, and reflections to create tessellations. They explore and construct several different types of tessellations including pure/semi-pure and non-regular polygon and "Escher-like" tessellations .

Students measure muzzle velocity, and predict range of a projectile device.  In this motion lesson students complete a lab and explain the outcomes of their experiments. 

Students explore the nature and magnitude of gravitational forces.  In this gravitation instructional activity students study gravity and answer questions. 

Students calculate angular displacement, velocity and acceleration of gyrocopters. In this physics lesson, students compare data taken from 3 different gyrocopters. They explain how differences in construction material affect rates of...

In this matrix worksheet, students solve a system of differential equations, find eigenvalues and eigenvector in two problems, and solve a word problem using a system. 

Eighth graders differentiate speed and velocity. For this physics lesson, 8th graders explain Newton's laws of motion. They calculate speed using a mathematical formula.

Learners design and build their own truss. In this physics lesson, students calculate the forces and maximum load. They complete a full scale diagram of their design.

In this interactive site, students will begin to understand the rules of vector addition, subtraction, and multiplication and apply graphical methods of vector addition and subtraction to determine the displacement of moving objects.

An extensive discussion of vector addition with links to interactives and exercises.

A complete lesson/tutorial on vectors. Learn about vector addition, vector resolution, vector components, and resultants. Numerous examples and learning exercises are provided.

Explore the world of vectors, by finding answers to questions like what are vectors, what are scalars, what is the difference between scalar and vectors, the magnitude of a vector, operations on vectors, and properties of a vector.

Learn how to add vectors. Drag vectors onto a graph, change their length and angle, and sum them together. The magnitude, angle, and components of each vector can be displayed in several formats.

In this interactive students will begin to understand the rules of vector addition and subtraction using analytical methods. They will apply analytical methods to determine vertical and horizontal component vectors.

Definition and description of vectors. Diagram included. This site only covers the most basic aspects of vectors.