Students of 7th grade science fair projects can use these projects to explore everything from kitchen chemistry to DIY mini drones. Students can follow each experiment exactly or adapt it in their own unique fashion.
Students can easily explore density with this straightforward, colorful experiment that illustrates why oil floats on water. Or they can explore bridge mechanics using Leonardo da Vinci-inspired engineering projects like this engineering challenge.
Germ Experiments
Students swab household and school items to discover where germs thrive – an interesting experiment that helps children understand why adults always remind them to wash their hands! This activity helps kids understand why grown-ups remind them to wash up!
This eye-opening germ experiment shows kids that using soap to break up surface tension holds on water can remove all glitter germs more effectively.
Spherification
Explore spherification techniques used in molecular gastronomy with this fun experiment that uses juice as its medium for creating the spheres. Students will also gain an appreciation of physics and chemical engineering.
Teaching kids about centripetal force with this challenging engineering activity will prove highly educational. They’ll design a system to suspend a marble from loops and measure acceleration.
Does classical music aid plant growth? This seventh grade science fair project puts this theory into the laboratory.
Calorie Counting
Discover how food fuels your body through this project that utilizes a calorimeter. It’s an excellent way to help students comprehend food’s energy content.
Explore how bubbles reveal density with this hands-on experiment that combines fun with learning about cell membranes. Or follow Darwin’s path with this natural selection lab!
Science fair projects for 7th grade can range in complexity depending on what suits you best, with some projects needing parental oversight or even eye protection, like with pop-top rockets.
Mummifying a Hot Dog
Mummification was used by ancient Egypt and other cultures to preserve bodies, and this hands-on human biology project investigates this practice through an experiment with a hot dog.
Make an airtight plastic storage box larger in length, width, and depth than your hot dog, then place the hot dog inside with some baking soda sprinkled around its base. Make observations and measurements every week for 14 days.
Cellular Mitosis Models
Students create a model of mitosis using popsicle sticks and toothpicks. Their model shows prophase, early prometaphase, metaphase, anaphase, telophase (the postmitotic event of cell division), and telophase in each plate.
Help students learn about the water cycle through this simple experiment using a Ziploc bag, food coloring, and a marker. Or consider doing a project testing how fertilizers affect algae growth in lakes, rivers, or streams.
Balloon-Powered Car
A balloon-powered car is an engaging craft project designed to teach students about Newton’s third law of motion and provide children with an engaging hands-on way to understand thrust.
Assemble their cars by stretching a balloon over each straw and pinching its top to seal in air. Test each car on smooth surfaces before racing it.
Geodesic Dome
After World War II, geodesic domes became popular with architects, hippies, and do-it-yourselfers due to their efficient design that is inexpensive yet simple construction. They offer excellent value.
Students learn how charcoal filters impurities from water through this chemistry experiment in 7th grade science class. This project can also serve to explore biology, health & psychology, ecology, chemistry physics & environmental sciences.
Hydrogen Generator
Hydrogen will play an increasingly vital role in our future energy landscape as it offers clean and dispatchable power. Explore this intriguing energy source through this straightforward experiment!
This simple experiment shows kids how heat alters air molecules, causing hot air to rise up through them. Although some supervision is needed due to fire hazards, this activity provides a fantastic way for teaching basic chemistry concepts to young learners.
Hydrogen generators offer significant time and cost-saving advantages when used for gas chromatography; read our complete guide of these effective devices here.
Pet Feeder
Make sure your students understand any animal-related regulations for science fair projects they wish to submit, particularly experiments that involve interaction between animals in an unethical manner and humans.
An easy and fun way to investigate density with bubbles! Plus, this experiment helps 7th graders gain an understanding of static electricity.
Experiment with different light colors to determine which type promotes rapid plant growth and photosynthesis. This activity provides an excellent way to teach students about plant development.
Text-Language Glossary
Glossaries are sections in books or written works that provide definitions of complex words. A glossary typically organizes alphabetically by keyword and only includes those words used within its contents, unlike dictionaries which cover an entire language’s vocabulary.
Does caffeine really increase productivity in people’s work performance? This experiment aims to find out!