From the Wellcome Trust, these animations illustrate the life cycle of the protozoan parasite that causes Chagas' Disease.

The parasites use a blood-sucking insect called a triatomine as an incubator and vector. The...

This resource pack from Association for the Study of Animal Behaviour (ASAB) focuses on the role of judgment in animal behaviour studies. It consists of:

*background information for teachers

* images of Canada goose goslings at various stages of development and images of seven of the behaviours of...

This simulation allows students to arrange positive and negative charges in space and view the resulting electric field and electrostatic potential. They can plot equipotential lines, discover their relationship to the electric field and create models of dipoles, capacitors, and more!

Sample Learning...

This Excel file has a series of sheets which illustrate the link between the equation of a circle and the corresponding graph. It goes on to deal with the intersection of a circle with a straight line.

The first...

This excel program contains a series of interactive spreadsheets related to the equation of the circle. The first sheets enable the student to alter the radius and centre of the circles centred at the origin and elsewhere. The program allows the student to view the...

This simulation allows students to build circuits with capacitors, inductors, resistors and AC or DC voltage sources, and investigate current and voltage.

Sample Learning Objectives include: *Build circuits from circuit diagrams. *Use an ammeter and voltmeter to take readings in circuits. *Discuss basic...

Ball on a tether released (horizontal plane)

Circular motion: ball on tether released (vertical plane)

Circular motion: horizontal ball in a hoop (Tim holding)

Circular motion: vertical ball in a hoop (clamped)

Circular motion: vertical ball in hoop (Tim holding)

This simulation allows students to use an air hockey table to investigate simple collisions in 1D and more complex collisions in 2D. Students can experiment with the number of discs, masses, initial conditions, and can vary the elasticity and see how the total momentum and kinetic energy changes during collisions...

This series of interactive excel sheets investigate models involving collisions.

The first sheet simulates two particles colliding. Initial velocity, mass and resulting velocity of the two particles can be set, or a...

Collisions: inelastic collision top view

Collisions: inelastic little spin