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Meet Gizmos

The world's largest library of math and science simulations.

Sign Up for Free Find a Gizmo
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Explore the inner workings of a cell!
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Give chase using linear equations!
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Delve deep into all things density!
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See how simple expressions can be!
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Get a reaction to chemical changes!
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Build inquiry, understanding, and a love of math and science.

Featuring over 550 virtual, interactive STEM simulations all crafted to meet the latest educational standards, Gizmos empowers educators in grades 3-12 to transform classrooms with engaging online simulations that foster a deeper conceptual understanding of science, technology, engineering, and math subjects. By using ExploreLearning Gizmos immersive online labs and student-centered, inquiry-based activities, students discover their STEM potential.

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Gizmo of the week!

Phases of Water

You notice several things when setting your icy drink down on a hot summer’s day. Inside the glass, the ice cubes are getting smaller and smaller. In the meantime, a thick layer of water droplets forms on the outside of the glass.
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Screenshot of Phases of Water Gizmo

Phases of Water

You notice several things when setting your icy drink down on a hot summer’s day. Inside the glass, the ice cubes are getting smaller and smaller. In the meantime, a thick layer of water droplets forms on the outside of the glass.



The phase changes you witness are explored in the Phases of Water Gizmo. The Gizmo allows students to connect the phases they can physically observe to the molecular structures and interactions that cause them. Using the magnifier, students can observe the crystalline structure of ice, where molecules vibrate in place, the free-flowing structure of liquid water, and the spread-out nature of molecules in a gas. The movement and spacing of the molecules explain the rigidity of a solid, the “sloshing around” quality of a liquid, and the tendency of a gas to expand to fit any container.



In the meantime, keep enjoying those icy drinks to get through the long, hot days of summer.

Go to Gizmo!

Coming soon: Gizmos Investigations

Real-world science, reimagined

Launching Fall 2025, Gizmos Investigations brings fully guided, hands-on science lessons for grades 6–8 that are built around real-world problems and elevate existing Gizmo simulations. These turnkey, sensemaking-driven experiences help students think, explore, and do science like never before! It’s everything teachers need to ignite curiosity in students and drive deeper learning in science.

Learn More About Gizmos Investigations

Gizmos Investigations
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Bring science to life with real-life STEM cases.

Immerse your students in active learning with Gizmos STEM Cases, where they learn about real-world STEM challenges and actively solve them like real scientists. Our STEM Cases encourage hands-on exploration, promoting a dynamic learning environment that sparks curiosity and enthusiasm.

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Research

Leverage research-proven teaching tools.

Independent research studies show how Gizmos interactive simulations power effective math and science instruction and impact student achievement.

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Professional Development

Prepare teachers for even greater success.

When teachers effectively integrate Gizmos into instruction they can take learning to new levels. Learn how our support helps educators be their best.

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Make the most of your implementation.

Get insights, ideas, inspiration and more. We’re here to help you use Gizmos in the classroom—whether you’re just getting started or ready to go deeper.

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Why Choose Gizmos


Evidence-Based & Proven for Success

 Backed by research, Gizmos improve student outcomes with engaging, effective virtual labs and simulations.


Puts Data Privacy First

We prioritize student safety with robust data privacy and security measures. Learn more about our commitment.


Helps All Students Succeed

Gizmos empower all students to succeed by providing interactive simulations that adapt to diverse learning needs.



Easy to Implement

Gizmos integrate seamlessly into classrooms with expert resources and professional development.


Loved by Teachers & Students

Teachers and students rave about Gizmos for transforming science and math education. Read their stories!


Everybody's Talking About Gizmos

Hello, Ms. D. I apologize about emailing you during the weekend, but I couldn’t wait to tell you. Gizmos is so much fun, and I absolutely love it. I actually learn something and I like the fact that it is interactive. Thank you so much for making us do Gizmos.

- Gizmos Student, American International School, Abu Dhabi

I really love Gizmos as they help students grasp difficult concepts that can’t always be seen. They make abstract ideas come to life.

- Gizmos Teacher, Foothills School Division, Alberta, Canada

Another great feature of Gizmos is that I can manipulate them to accomplish my desired learning outcomes for my students. Sometimes I take a Gizmo that is meant to be an entire lab, and I cut it down into a smaller, briefer activity. But, other times, I combine some of the smaller labs into one and have the students access the various Gizmos from the class home page for a bigger assignment. In that way, Gizmos are always able to accomplish my desired outcomes.

- Teacher, Stuarts Draft High School

Any time I’ve used Gizmos, my students have a deeper and more meaningful experience with their learning. It leads to more inquiry and great classroom discussion!

- Grade 3 teacher

As a teacher, this platform is a time saver for me, as there are ready-made tasks and STEM hours, but I also like that I can modify assignments at any time.

- Teacher, Wicomico County School District

Gizmos associated with higher performance on NGSS-aligned state science assessments

Data from more than 22,000 students at over 115 schools found that higher Gizmos usage led to a higher likelihood of meeting or exceeding proficiency on two different state science achievement tests.

Middle School Study   High School Study

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Gizmos have earned every major edtech award!

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Science Holidays and Events Every Teacher Should Know

Celebrating Math All Year: Math Awareness Days for Every Classroom

Get Ready to Decorate: Back-to-School Classroom Downloads

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© 2025 ExploreLearning. All rights reserved. Gizmo and Gizmos are registered trademarks of ExploreLearning. STEM Cases, Handbooks and the associated Realtime Reporting System are protected by US Patent No. 10,410,534

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Find Gizmos
  • FREE Gizmos
  • NEW Releases
  • STEM Cases
  • Browse by Standard
  • Browse by Grade & Topic
  • Browse by Core Curriculum
About Gizmos
  • What's a Gizmo?
  • About STEM Cases
  • What are Gizmos Investigations?
  • Take a Tour
  • Supporting All Students
  • How to Get Gizmos
  • Testimonials
  • K-5 Science
Research
  • The Impact of Gizmos on Student Achievement
  • The Research Behind Gizmos
Support
  • Professional Development Overview
  • Meet the Team
  • Course Catalog
  • Help Center
  • Site Status
Resources
  • Popular Gizmos Collections
  • Educator Resource Hub
  • Success Stories
  • Insights
Get More Info
  • Sign Up for Free
  • Request Purchasing Info
  • Request a Demo
  • Request a Pilot
  • Contact Support

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© 2025 ExploreLearning. All rights reserved. Gizmo and Gizmos are registered trademarks of ExploreLearning. STEM Cases, Handbooks and the associated Realtime Reporting System are protected by US Patent No. 10,410,534

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