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  • John Blanco
Alpha Decay
Unrestricted Use
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Watch alpha particles escape from a polonium nucleus, causing radioactive alpha decay. See how random decay times relate to the half life.

Subject:
Science
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Carl Wieman
Danielle Harlow
John Blanco
Kathy Perkins
Noah Podolefsky
Ron LeMaster
Sam McKagan
Wendy Adams
Date Added:
07/21/2011
Alpha Decay (AR)
Unrestricted Use
CC BY
Rating

Watch alpha particles escape from a polonium nucleus, causing radioactive alpha decay. See how random decay times relate to the half life.

Subject:
Science
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Carl Wieman
Danielle Harlow
John Blanco
Kathy Perkins
Noah Podolefsky
Ron LeMaster
Sam McKagan
Wendy Adams
Date Added:
09/02/2012
Area Builder
Unrestricted Use
CC BY
Rating

Create your own shapes using colorful blocks and explore the relationship between perimeter and area. Compare the area and perimeter of two shapes side-by-side. Challenge yourself in the game screen to build shapes or find the area of funky figures. Try to collect lots of stars!

Subject:
Mathematics
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Amanda McGarry
Ariel Paul
Beth Stade
Bryce Gruneich
John Blanco
Karina Hensberry (lead)
Kathy Perkins
Date Added:
06/29/2018
Atomic Interactions
Unrestricted Use
CC BY
Rating

Explore the interactions between various combinations of two atoms. Turn on the force arrows to see either the total force acting on the atoms or the individual attractive and repulsive forces. Try the "Adjustable Attraction" atom to see how changing the parameters affects the interaction.

Subject:
Chemistry
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Carl Wieman
Jack Barbera
John Blanco
Kathy Perkins
Kelly Lancaster
Noah Podolefsky
Wendy Adams
Date Added:
08/01/2009
Atomic Interactions (AR)
Unrestricted Use
CC BY
Rating

Explore the interactions between various combinations of two atoms. Turn on the force arrows to see either the total force acting on the atoms or the individual attractive and repulsive forces. Try the "Adjustable Attraction" atom to see how changing the parameters affects the interaction.

Subject:
Chemistry
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Carl Wieman
Jack Barbera
John Blanco
Kathy Perkins
Kelly Lancaster
Noah Podolefsky
Wendy Adams
Date Added:
08/01/2009
Energy Forms and Changes
Restricted Use
Copyright Restricted
Rating

Explore how heating and cooling iron, brick, water, and olive oil adds or removes energy. See how energy is transferred between objects. Build your own system, with energy sources, changers, and users. Track and visualize how energy flows and changes through your system.

Subject:
Science
Material Type:
Interactive
Provider:
PhET Interactive Simulations University of Colorado Boulder
Author:
Ariel Paul
Emily Moore
John Blanco
Kathy Perkins
Noah Podolefsky
Trish Loeblein
Date Added:
04/25/2013
Gene Expression - The Basics
Unrestricted Use
CC BY
Rating

Express yourself through your genes! See if you can generate and collect three types of protein, then move on to explore the factors that affect protein synthesis in a cell.

Subject:
Biology
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Ariel Paul
George Emanuel
John Blanco
Kathy Perkins
Mike Klymkowsky
Tom Perkins
Date Added:
08/20/2012
Gene Machine: The Lac Operon
Unrestricted Use
CC BY
Rating

Build a gene network! The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. Explore the effects of mutations within the lac operon by adding or removing genes from the DNA.

Subject:
Biology
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
George Spiegelman
Jared Taylor
John Blanco
Kathy Perkins
Noah Podolefsky
Date Added:
05/01/2010
Gene Machine: The Lac Operon (AR)
Unrestricted Use
CC BY
Rating

Build a gene network! The lac operon is a set of genes which are responsible for the metabolism of lactose in some bacterial cells. Explore the effects of mutations within the lac operon by adding or removing genes from the DNA.

Subject:
Biology
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
George Speigelman
Jared Taylor
John Blanco
Kathy Perkins
Noah Podolefsky
Date Added:
05/01/2010
Gravity and Orbits (AR)
Unrestricted Use
CC BY
Rating

Move the sun, earth, moon and space station to see how it affects their gravitational forces and orbital paths. Visualize the sizes and distances between different heavenly bodies, and turn off gravity to see what would happen without it!

Subject:
Astronomy
Physics
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Chris Malley
Emily Moore
John Blanco
Jon Olson
Kathy Perkins
Noah Podolefsky
Patricia Loblein
Sam Reid
Date Added:
02/07/2011
The Greenhouse Effect
Unrestricted Use
CC BY
Rating

How do greenhouse gases affect the climate? Explore the atmosphere during the ice age and today. What happens when you add clouds? Change the greenhouse gas concentration and see how the temperature changes. Then compare to the effect of glass panes. Zoom in and see how light interacts with molecules. Do all atmospheric gases contribute to the greenhouse effect?

Subject:
Science
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Carl Wieman
Danielle Harlow
John Blanco
Kathy Perkins
Kelly Lancaster
Robert Parson
Ron LeMaster
Trish Loeblein
Wendy Adams
Date Added:
11/15/2007
Isotopes and Atomic Mass
Unrestricted Use
CC BY
Rating

Are all atoms of an element the same? How can you tell one isotope from another? Use the sim to learn about isotopes and how abundance relates to the average atomic mass of an element.

Subject:
Chemistry
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Emily Moore
John Blanco
Kathy Perkins
Kelly Lancaster
Robert Parson
Sam Reid
Trish Loeblein
Date Added:
07/18/2011
Isotopes and Atomic Mass (AR)
Unrestricted Use
CC BY
Rating

Are all atoms of an element the same? How can you tell one isotope from another? Use the sim to learn about isotopes and how abundance relates to the average atomic mass of an element.

Subject:
Chemistry
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Emily Moore
John Blanco
Kathy Perkins
Kelly Lancaster
Patricia Loblein
Robert Parson
Sam Reid
Date Added:
05/13/2011
Neuron
Unrestricted Use
CC BY
Rating

Stimulate a neuron and monitor what happens. Pause, rewind, and move forward in time in order to observe the ions as they move across the neuron membrane.

Subject:
Biology
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
John Blanco
Katherine Perkins
Noah Podolefsky
Wendy Adams
Date Added:
10/01/2010
Nuclear Fission
Unrestricted Use
CC BY
Rating

Start a chain reaction, or introduce non-radioactive isotopes to prevent one. Control energy production in a nuclear reactor! (Previously part of the Nuclear Physics simulation - now there are separate Alpha Decay and Nuclear Fission sims.)

Subject:
Physics
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Carl Wieman
Danielle Harlow
John Blanco
Kathy Perkins
Noah Podolefsky
Ron LeMaster
Sam McKagan
Wendy Adams
Date Added:
07/19/2011