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Teach Chemical Reactions - 20+ Chemistry Lessons and Activities
October 15, 2025 8:00 AM
Use these free chemistry lesson plans, experiments, and activities to teach and explore chemical reactions with K-12 students. A chemical reaction occurs when two or more substances (reactants) are mixed together and result in one or more new substances (products). When teaching about chemical reactions, educators show chemical reactions in action and, when possible, let students get hands-on exploring reactions. With classroom science experiments,… Read more
24 Halloween Science Experiments!
October 1, 2025 8:00 AM
From icky slime to candy coatings, fake blood, wearable LEDs, a fire snake, and things that foam, light up, or glow in the dark, we have STEM suggestions for spooky, Halloween-themed science and engineering to explore with students! Halloween Science and Engineering Projects! Trick or treat! It's Halloween season! With its emphasis on the ghostly, the ghoulish, the gruesome, the spooky, the icky, and, of course, the sweet (to eat), Halloween brings an assortment of exciting themes to… Read more
19 Fall Science Projects
September 15, 2025 8:00 AM
Pair changing leaves and temperatures, apple season, pumpkins, Thanksgiving, and fall festivities with these free lessons and activities for enriching hands-on STEM. STEM Activities to Bring Autumn Themes to Science Class 1. Invisible Ink with Turmeric The same turmeric you might have out for Autumn cooking or as a seasoning at Thanksgiving, can be used as a revealing agent in the Secret Messages With Invisible Ink! chemistry activity. Write… Read more
Beaches and Sand Science Projects
June 26, 2025 6:00 AM
Combine fun in the sand with hands-on science experiments and activities to learn more about beaches, sand, and preventing ocean pollution. STEM Experiments to Learn More About Beaches and Sand Heading to a local beach can be lots of fun. Whether you enjoy walking on the firm sand by the water's edge or playing in softer sand, beaches have plenty of sand to go around. But where does sand come from? What happens to sand when the tides move in and out?… Read more
Summer Science Activities for Independence Day!
June 25, 2025 6:00 AM
Celebrate 4th of July or summer with hands-on science activities! Five Fun Picks for 4th of July Science! Independence Day celebrations often include colorful nighttime fireworks, noisy parades, and refreshing summer treats. Add a STEM twist to the your summer celebrations with one of these five hands-on science activities: Make a Kazoo: this simple noisemaker will fit right in at a local parade Launching Homemade Baking Soda Rockets: these… Read more
13 Boat and Submarine Science Projects and Experiments
June 24, 2025 8:00 AM
Investigate the physics of boat design, floating, sinking, and more with boat and boat design science and engineering projects, including DIY sailboats, submarines, and underwater ROVs. Boat and Submarine Science Experiments For students fascinated with boats, submarines, and other water vehicles, science projects can make great hands-on explorations. These projects can be fun in summer months or for a school science project or the science fair.… Read more
DIY Popsicle Stick Drone STEM
June 13, 2025 6:00 AM
Series of STEM activities guides students in building and experimenting with a popsicle stick drone. From a beginner build to adding advanced Arduino controls, follow along to build and test your own mini drone! Drones can be fun (and challenging!) to fly. A drone's hovering flight may look effortless, but whether you've experimented with a drone indoors or outside, you know that a lot goes into expertly navigating a drone to keep it in the air and… Read more
Teach Genetics and Heredity with Free STEM Lessons & Activities (DNA Day)
April 21, 2025 8:00 AM
Use these free STEM lessons and science activities to explore DNA, heredity, and genetics with K-12 students. How are we like our parents? What makes apples and onions different? Why are some siblings similar in appearance or behavior and others different? How do our genes determine our features and physical characteristics? Can our genes also predict our health or the probability that we will get a disease? DNA holds the key to answering these… Read more
Earth Day Science Projects and Activities
April 18, 2025 6:00 AM
Use these free science projects and STEM lessons and activities to celebrate Earth Day and explore related environmental science aimed at using STEM to increase sustainability, protect the Earth, and solve challenges we face for the future. Since its start in 1970, Earth Day has become a global day of activism and learning about environmental topics related to protection of the Earth, its natural resources, and species. Climate change, global warming,… Read more
25+ Robotics Projects, Lessons, and Activities
March 25, 2025 6:00 AM
Use these free STEM lessons and activities to introduce and experiment with robotics with students. From designing and building simple robots to thinking about how robots can be used to solve real-world problems, these hands-on projects help students gain and practice circuit-building and robotics engineering skills. The free STEM lessons, projects, and activities below help introduce students to robotics, robotics engineering, and the kinds of… Read more
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