Science Buddies Blog (Page 5)

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

2025 Nobel Science Projects for K-12 Students

October 14, 2025 6:00 AM

Explore and experiment with student science projects related to the 2025 Nobel Prizes. Explore Nobel Prize Science with Student Projects and STEM Lessons Each year, the Nobel Prizes in Physics, Chemistry, and Physiology or Medicine recognize breakthroughs and discoveries in STEM that have reshaped our understanding of the world and opened doors to new research and development. Students inspired by the 2025 Nobel Prize winners can experiment with… Read more

Space Science & Growing Plants in Microgravity with Arduino

October 8, 2025 6:00 AM

This middle school student took on a space-themed challenge for the STEM fair and built a clinostat with Arduino to explore plant growth in microgravity. Growing Plants in Space Evan, a middle school student in Milpitas, CA, built a solar oven for his school's STEM fair in 7th grade. Ready for a more advanced challenge the next year, he started the search for his 8th-grade project by browsing Arduino projects at Science Buddies. The Grow Plants… Read more

Chemical Reactions and Spice Projects for National Chemistry Week

October 6, 2025 6:00 AM

Chemistry projects and resources for National Chemistry Week 2025! National Chemistry Week is October 19-25, 2025. The theme of this year's chemistry awareness week, hosted by the American Chemical Society (ACS), is "The Hidden Life of Spices." Chemistry Projects Exploring Spices and Reactions Spices do more than just add flavor or heat to our food. The same molecules that make cinnamon smell sweet or peppers taste hot can also reveal invisible… 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

Engineering Challenge People's Choice Award Winner

September 24, 2025 6:00 AM

Middle school team at Tree of Life International Charter wins $1,000 People's Choice Award for the school in the Rocket Catcher Challenge. Community Support for STEM Learning When students at Tree of Life International Charter School in Anderson, CA, entered the 2025 Rocket Catcher Challenge, they didn't just get hands-on with engineering and space science. They rallied support from their school and community and won the $1,000 People's Choice… Read more

Competitions for Student STEM Projects

September 18, 2025 8:00 AM

Are your students starting science and engineering projects for the science fair? They may be able to enter their projects in other national competitions, too! Enter Science Projects in National Competitions Are your students choosing science and engineering projects for the school fair or a classroom assignment? In addition to showcasing their independent science projects at a school or local science fair, students may be able to enter their… Read more

Cabbage Chemistry: Students Explore Fermentation with Kimchi

September 17, 2025 6:00 AM

With a project from Science Buddies, these middle school students turned their interest in food science into a flavorful science fair project that combined chemistry, fermentation, and teamwork. Food Science for the STEM Fair For their 7th-grade science fair project, Abby and Katilyn, students at St. John the Baptist Catholic School in Milpitas, CA, wanted a food science project that felt exciting and different. Curious about fermentation, they… 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

Louisiana Teacher Does Rocket Catcher Challenge with More than 500 Students!

September 9, 2025 6:00 AM

This STEM teacher did the 2025 Engineering Challenge with students in 2nd, 3rd, and 4th grade—and won big! An Engineering Challenge for All Ages The annual Science Buddies Engineering Challenge is open to all students in grades K-12. With a goal of encouraging students to "try" engineering, the challenge emphasizes simple materials and presents an activity that can be solved by even the youngest students. Engineering Challenge… Read more

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