Students work through animated models showing the effects that electron repulsions have on the shape of a molecule in this web-based activity. In addition, shared and unshared electron pairs are demonstrated to define a molecule's shape....

This activity reviews of states of matter, then relates them to atomic movement as it is affected by attractions between atoms and the addition of energy. Latent heat and evaporative cooling are also topics covered. Multiple-choice and...

Learners can use this web-based activity to study solutions, as far as the intermolecular attractive forces that allow or do not allow a solvent to dissolve in a solute. Also discussed includes the solubility rule "like dissolves like"...

Web-based activity walks learners through the use of spectroscopy in determining the identity of atoms and molecules by defining the excited state of atoms, the frequencies of emitted photons, and atoms' ability to absorb them....

Using simulations observe what solids, liquids, and gases look like at the atomic scale. After observing the different states of matter at their atomic level, students will be able to conclude about the forces and attractions that exist...

Do you think you can build a house that can withstand the shaking from an earthquake? In this activity, students design and construct model building that will be tested on a shake table with a force sensor. Activity includes questions...

Geniventure engages students in exploring heredity, genetics, and the protein-to-trait relationship by breeding and studying virtual dragons. Students play through six levels of challenges, conducting simulated experiments that generate...

Investigate how selection pressures and natural selection influence populations growth with this computer model. Understand how a population changes when selection pressures are in conflict. Perform the virtual lab to see what happens to...

Build a dam in the middle of an ecosystem and observe how the population of plants and animals adapt to their new environment with this science simulation. Learn how the populations adapt to survive in their new habitat. Then remove the...

A tutorial that explores the concepts of heat and temperature, the transfer of energy between substances, the relationship of temperature and the movement of atom, and thermal radiation. The tutorial includes animations, interactive...

Numerous molecular biology interactive activities along with a program that can automatically keep models and reports to keep track of progress.

Use a model to explore leaf photosynthesis and the macroscopic outcome of the photosynthetic reaction.

In this activity, students explore reactions in which chemical bonds are formed and broken. Students experiment with changing the temperature and the concentration of the atoms in order to see how these affect reaction rates. They also...

Use a series of interactive models and games to explore electrostatics. Learn about the effects positive and negative charges have on one another, and investigate these effects further through games.

This simulation allows students to make observations about the structure and movement of particles in a gas.

This simulation allows students to make observations about the structure and movement of particles in a liquid.

In this activity, you will use a temperature sensor to relate changes in sunlight to the temperature of the air trapped in a container.

This sequence is an introduction to plate tectonics using evidence from topographical maps, earthquake location and depth, and volcano location using the Seismic Explorer model to investigate patterns of earthquake data and to infer the...

Explore the pattern of earthquakes on Earth, including magnitude, depth, location, and frequency.

Sage Modeler is a systems modeling tool to facilitate the building of dynamic models.

Stebbins is a game about evolution. Students collect data as predators eating colored circles on a colored background, being careful to avoid the poisonous ones. Data analysis reveals how the population changes color over time, and can...

Students investigate graphs that are equivalent, in the sense that they represent the same data, though they look different because they employ different scales.

Geniversity has been designed to help teachers use Geniverse, free web-based software for high school biology that engages students in exploring genetics by breeding and studying virtual dragons.

Learn about three models of population growth: linear, exponential, and logistic. Then conduct a population experiment to see how populations can work in the real world, and see how linear graphs can help simplify complicated ones.