PhET Interactive Simulations
@phetsims.bsky.social
Increasing #STEM literacy worldwide with free interactive simulations! #edusky #OER #edtech #math #science #physics #chemistry Interact, Discover, and Learn!
Support PhET - https://giveto.colorado.edu/phet-interactive-simulations/?a=10492436
Support PhET - https://giveto.colorado.edu/phet-interactive-simulations/?a=10492436
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Today's the DAY!!! Join the #FREE #EarlyAccess period for PhET Studio right now!
Go to phet.colorado.edu/studio to get started crafting your own presets. We can't wait to see what you create! #LaunchDay #PhETStudio #InteractYourWay
Go to phet.colorado.edu/studio to get started crafting your own presets. We can't wait to see what you create! #LaunchDay #PhETStudio #InteractYourWay
Sneak a peak at the Photoelectric Effect sim being released soon, and learn more about what makes it so effective. Explore free quantum sims: https://f.mtr.cool/xeqz3gis52
September 22, 2026 at 6:31 PM
Sneak a peak at the Photoelectric Effect sim being released soon, and learn more about what makes it so effective. Explore free quantum sims: https://f.mtr.cool/xeqz3gis52
Which one doesn't belong? 🤔
01 Build an Atom,
02 Build a Fraction,
03 Build a Molecule,
04 Build a Nucleus.
Three share something; the fourth doesn't. Which is the odd one out? What's the rule?
01 Build an Atom,
02 Build a Fraction,
03 Build a Molecule,
04 Build a Nucleus.
Three share something; the fourth doesn't. Which is the odd one out? What's the rule?
September 21, 2026 at 6:58 AM
Which one doesn't belong? 🤔
01 Build an Atom,
02 Build a Fraction,
03 Build a Molecule,
04 Build a Nucleus.
Three share something; the fourth doesn't. Which is the odd one out? What's the rule?
01 Build an Atom,
02 Build a Fraction,
03 Build a Molecule,
04 Build a Nucleus.
Three share something; the fourth doesn't. Which is the odd one out? What's the rule?
Fire one particle through a double slit and an interference pattern shows up. You could never see that in a real lab. Our new quantum sim visualizes it. https://f.mtr.cool/ybtpgpoqpq
September 15, 2026 at 2:09 PM
Fire one particle through a double slit and an interference pattern shows up. You could never see that in a real lab. Our new quantum sim visualizes it. https://f.mtr.cool/ybtpgpoqpq
One sim. Four concepts. 🎯
#Balance. Proportional reasoning. #Torque. #Lever arm.
Which PhET sim covers all four?
🔍 Clue: Your students have all played on one at the park. Guess in the comments.
#physicsteacher #iTeachPhysics #phet
#Balance. Proportional reasoning. #Torque. #Lever arm.
Which PhET sim covers all four?
🔍 Clue: Your students have all played on one at the park. Guess in the comments.
#physicsteacher #iTeachPhysics #phet
September 14, 2026 at 5:58 PM
One sim. Four concepts. 🎯
#Balance. Proportional reasoning. #Torque. #Lever arm.
Which PhET sim covers all four?
🔍 Clue: Your students have all played on one at the park. Guess in the comments.
#physicsteacher #iTeachPhysics #phet
#Balance. Proportional reasoning. #Torque. #Lever arm.
Which PhET sim covers all four?
🔍 Clue: Your students have all played on one at the park. Guess in the comments.
#physicsteacher #iTeachPhysics #phet
The vowels have left the building. 🎯
MK TN — 8 letters, 3 words. Name the sim.
🔍 Clue: it's turns around. Drop your guess below.
#mathteacher #elementarymath #numbersense #mathgames
MK TN — 8 letters, 3 words. Name the sim.
🔍 Clue: it's turns around. Drop your guess below.
#mathteacher #elementarymath #numbersense #mathgames
September 8, 2026 at 12:02 AM
The vowels have left the building. 🎯
MK TN — 8 letters, 3 words. Name the sim.
🔍 Clue: it's turns around. Drop your guess below.
#mathteacher #elementarymath #numbersense #mathgames
MK TN — 8 letters, 3 words. Name the sim.
🔍 Clue: it's turns around. Drop your guess below.
#mathteacher #elementarymath #numbersense #mathgames
Carbon-14 decays on a schedule you cannot see and cannot rush. The Alpha Decay and Beta Decay sims gives students the timeline and lets them play with it. Meet the developer building it.
#PhET #ScienceTeachers #PhysicsTeacher #ChemistryTeacher #NuclearPhysics
#PhET #ScienceTeachers #PhysicsTeacher #ChemistryTeacher #NuclearPhysics
August 27, 2026 at 2:05 PM
Carbon-14 decays on a schedule you cannot see and cannot rush. The Alpha Decay and Beta Decay sims gives students the timeline and lets them play with it. Meet the developer building it.
#PhET #ScienceTeachers #PhysicsTeacher #ChemistryTeacher #NuclearPhysics
#PhET #ScienceTeachers #PhysicsTeacher #ChemistryTeacher #NuclearPhysics
Women have always shaped the world, and equal rights ensure the next ones can too. The future great names are sitting in your classroom right now. Free resources to help you get them there: https://f.mtr.cool/ssyvfqhuhc
August 26, 2026 at 4:01 PM
Women have always shaped the world, and equal rights ensure the next ones can too. The future great names are sitting in your classroom right now. Free resources to help you get them there: https://f.mtr.cool/ssyvfqhuhc
Some of you will get this in a few seconds. The rest of you are going to scroll our sim library pretending you weren't 😂
⚡🛹⛰️ = ? Name the sim.
Answer in the comments below.
#PhysicsTeacher #ScienceTeacher #STEM
⚡🛹⛰️ = ? Name the sim.
Answer in the comments below.
#PhysicsTeacher #ScienceTeacher #STEM
August 25, 2026 at 8:31 PM
Some of you will get this in a few seconds. The rest of you are going to scroll our sim library pretending you weren't 😂
⚡🛹⛰️ = ? Name the sim.
Answer in the comments below.
#PhysicsTeacher #ScienceTeacher #STEM
⚡🛹⛰️ = ? Name the sim.
Answer in the comments below.
#PhysicsTeacher #ScienceTeacher #STEM
Taliesin Smith is part of the team building a physics sim you can explore without looking at it. On Quantum Wave Interference, an upcoming PhET sim, students run a double-slit experiment by keyboard and hear the pattern described out loud. Here's an early look.
August 20, 2026 at 4:04 PM
Taliesin Smith is part of the team building a physics sim you can explore without looking at it. On Quantum Wave Interference, an upcoming PhET sim, students run a double-slit experiment by keyboard and hear the pattern described out loud. Here's an early look.
Make a Ten just got a refresh: improved ways to compose and decompose numbers, sound on every move, and it runs on any screen in dozens of languages. Students drag cards to break numbers apart, reinforcing the "make a ten" strategy. https://f.mtr.cool/xvnlbywmjs
August 17, 2026 at 11:31 PM
Make a Ten just got a refresh: improved ways to compose and decompose numbers, sound on every move, and it runs on any screen in dozens of languages. Students drag cards to break numbers apart, reinforcing the "make a ten" strategy. https://f.mtr.cool/xvnlbywmjs
This summer we brought teachers and researchers together to build the next generation of quantum sims. Teachers tested upcoming sims, designed classroom activities, and told us what their students actually need. Learn how to get involved: https://f.mtr.cool/qgpfqwsoux
August 13, 2026 at 3:31 PM
This summer we brought teachers and researchers together to build the next generation of quantum sims. Teachers tested upcoming sims, designed classroom activities, and told us what their students actually need. Learn how to get involved: https://f.mtr.cool/qgpfqwsoux
Planning your science lessons for the year? This free Natural Selection activity is ready to run, data tables and all. Open the sim, print the sheet, and you're set. It's one of many expert vetted activities on PhET's website 🔗 https://f.mtr.cool/cifzvfpres
August 12, 2026 at 10:31 PM
Planning your science lessons for the year? This free Natural Selection activity is ready to run, data tables and all. Open the sim, print the sheet, and you're set. It's one of many expert vetted activities on PhET's website 🔗 https://f.mtr.cool/cifzvfpres
Guess the sim from this learning goal
Name it, one guess per comment. read before you post, no repeats. Answer shared tomorrow.
#GuessTheSim #math #iteachmath
Name it, one guess per comment. read before you post, no repeats. Answer shared tomorrow.
#GuessTheSim #math #iteachmath
August 10, 2026 at 9:56 PM
Guess the sim from this learning goal
Name it, one guess per comment. read before you post, no repeats. Answer shared tomorrow.
#GuessTheSim #math #iteachmath
Name it, one guess per comment. read before you post, no repeats. Answer shared tomorrow.
#GuessTheSim #math #iteachmath
Low cost graduate credits, and for a limited time: a free course on sustainability. Built by the PhET team. First enrollment deadline is August 15th. https://f.mtr.cool/qrieodqxgk
August 6, 2026 at 4:03 PM
Low cost graduate credits, and for a limited time: a free course on sustainability. Built by the PhET team. First enrollment deadline is August 15th. https://f.mtr.cool/qrieodqxgk
At #LitMath26 in Charlotte this week: Catherine Carter on using free interactive sims to energize math class. Wed Aug 5, 10:00 to 11:15 AM, Room W207A. Bring a device and try them with us.
August 2, 2026 at 2:02 PM
At #LitMath26 in Charlotte this week: Catherine Carter on using free interactive sims to energize math class. Wed Aug 5, 10:00 to 11:15 AM, Room W207A. Bring a device and try them with us.
New from PhET: a professional learning library, all in one place. 200+ resources for growing your practice with sims, and you can filter by subject, grade level, and length: how-to guides, webinars, and full courses. https://f.mtr.cool/tkfarncvvl
July 30, 2026 at 2:04 PM
New from PhET: a professional learning library, all in one place. 200+ resources for growing your practice with sims, and you can filter by subject, grade level, and length: how-to guides, webinars, and full courses. https://f.mtr.cool/tkfarncvvl
World Cup season is a fun way into the trickiest idea in stats: the mean.
In Center and Variability, students become the striker. Every kick is a data point, and the mean and median move in real time. https://f.mtr.cool/umhpfnpqex
In Center and Variability, students become the striker. Every kick is a data point, and the mean and median move in real time. https://f.mtr.cool/umhpfnpqex
July 16, 2026 at 2:04 PM
World Cup season is a fun way into the trickiest idea in stats: the mean.
In Center and Variability, students become the striker. Every kick is a data point, and the mean and median move in real time. https://f.mtr.cool/umhpfnpqex
In Center and Variability, students become the striker. Every kick is a data point, and the mean and median move in real time. https://f.mtr.cool/umhpfnpqex
While students are away, the PhET team is at play!⚛️
We're using every minute of summer break to bring you something we've been building toward for a long time. Learn more about our Quantum Education Initiative 🔗 https://f.mtr.cool/nnveocedmh
#PhETSimulations #QuantumEducation
We're using every minute of summer break to bring you something we've been building toward for a long time. Learn more about our Quantum Education Initiative 🔗 https://f.mtr.cool/nnveocedmh
#PhETSimulations #QuantumEducation
June 16, 2026 at 2:41 PM
While students are away, the PhET team is at play!⚛️
We're using every minute of summer break to bring you something we've been building toward for a long time. Learn more about our Quantum Education Initiative 🔗 https://f.mtr.cool/nnveocedmh
#PhETSimulations #QuantumEducation
We're using every minute of summer break to bring you something we've been building toward for a long time. Learn more about our Quantum Education Initiative 🔗 https://f.mtr.cool/nnveocedmh
#PhETSimulations #QuantumEducation
Today is Global Accessibility Awareness Day. 💙 Many of our sims include features designed so every student can experience the same depth of interactive STEM learning. In this video find out how to find the sims with the features your students need. https://f.mtr.cool/xgzabtblro
May 21, 2026 at 1:03 PM
Today is Global Accessibility Awareness Day. 💙 Many of our sims include features designed so every student can experience the same depth of interactive STEM learning. In this video find out how to find the sims with the features your students need. https://f.mtr.cool/xgzabtblro
What does it take to make #PhET's interactive sims accessible? There's no text alternative that replicates the experience of discovering Ohm's Law by building a circuit. Learn more about our accessibility work:
There's No Alt Text for Discovery
What it actually takes to make interactive science accessible
f.mtr.cool
May 13, 2026 at 2:04 PM
What does it take to make #PhET's interactive sims accessible? There's no text alternative that replicates the experience of discovering Ohm's Law by building a circuit. Learn more about our accessibility work:
PhET’s 10-day #springfundraiser
Support efforts to bring 5 popular legacy sims to HTML for the next school year. As a small nonprofit, PhET relies on support from our community to keep creating high-quality, open educational resources for science and math
giveto.colorado.edu/campaigns/50...
Support efforts to bring 5 popular legacy sims to HTML for the next school year. As a small nonprofit, PhET relies on support from our community to keep creating high-quality, open educational resources for science and math
giveto.colorado.edu/campaigns/50...
May 2, 2026 at 12:33 AM
PhET’s 10-day #springfundraiser
Support efforts to bring 5 popular legacy sims to HTML for the next school year. As a small nonprofit, PhET relies on support from our community to keep creating high-quality, open educational resources for science and math
giveto.colorado.edu/campaigns/50...
Support efforts to bring 5 popular legacy sims to HTML for the next school year. As a small nonprofit, PhET relies on support from our community to keep creating high-quality, open educational resources for science and math
giveto.colorado.edu/campaigns/50...
We just got back from #NSTA2026 in Anaheim and we're still smiling. Teachers loved talking about our upcoming Quantum sims, the new sim Membrane Transport, and were curious about PhET Studio.
Thank you to every educator who said hello. You're why we do this. 💙
#PhET #ScienceEducation #STEMed
Thank you to every educator who said hello. You're why we do this. 💙
#PhET #ScienceEducation #STEMed
April 20, 2026 at 4:31 PM
We just got back from #NSTA2026 in Anaheim and we're still smiling. Teachers loved talking about our upcoming Quantum sims, the new sim Membrane Transport, and were curious about PhET Studio.
Thank you to every educator who said hello. You're why we do this. 💙
#PhET #ScienceEducation #STEMed
Thank you to every educator who said hello. You're why we do this. 💙
#PhET #ScienceEducation #STEMed
Parents & educators! Help @PhETsims design new Machine Learning sims.
This NSF project REQUIRES co-creation between researchers and families.
1️⃣ Use the link to submit ideas.
2️⃣ Mention "PhET simulations" in your entry.
3️⃣ Submit by Monday, April 20.
Visit: airtable.com/appIWEuYz46j...
This NSF project REQUIRES co-creation between researchers and families.
1️⃣ Use the link to submit ideas.
2️⃣ Mention "PhET simulations" in your entry.
3️⃣ Submit by Monday, April 20.
Visit: airtable.com/appIWEuYz46j...
April 15, 2026 at 1:53 AM
Parents & educators! Help @PhETsims design new Machine Learning sims.
This NSF project REQUIRES co-creation between researchers and families.
1️⃣ Use the link to submit ideas.
2️⃣ Mention "PhET simulations" in your entry.
3️⃣ Submit by Monday, April 20.
Visit: airtable.com/appIWEuYz46j...
This NSF project REQUIRES co-creation between researchers and families.
1️⃣ Use the link to submit ideas.
2️⃣ Mention "PhET simulations" in your entry.
3️⃣ Submit by Monday, April 20.
Visit: airtable.com/appIWEuYz46j...
Happy #WorldQuantumDay! Today, we celebrate the incredible potential of quantum science. The quantum workforce needs better education tools, as existing tools haven't kept pace. We are building them and invite you to join our community. bit.ly/PhETQuantumSurvey2026 #QuantumWorkforce
April 14, 2026 at 8:07 PM
Happy #WorldQuantumDay! Today, we celebrate the incredible potential of quantum science. The quantum workforce needs better education tools, as existing tools haven't kept pace. We are building them and invite you to join our community. bit.ly/PhETQuantumSurvey2026 #QuantumWorkforce
From babies with big dreams to shaping STEM teaching and learning.
Meet a few little folks 👶 who make things happen at PhET!
#thisiswho #meettheteam #edusky
Meet a few little folks 👶 who make things happen at PhET!
#thisiswho #meettheteam #edusky
April 10, 2026 at 11:31 PM
From babies with big dreams to shaping STEM teaching and learning.
Meet a few little folks 👶 who make things happen at PhET!
#thisiswho #meettheteam #edusky
Meet a few little folks 👶 who make things happen at PhET!
#thisiswho #meettheteam #edusky