Primary Projects
Perfect for grades K-4 (ages 6-10). Simple, safe experiments that introduce basic scientific concepts through hands-on learning.
Free Science Fair Projects
Discover amazing STEM experiments and educational resources for students grades K-12
Choose Your Grade Level
Elementary Projects
Designed for grades 4-6 (ages 10-14). More detailed experiments that build on fundamental science principles.
Intermediate Projects
Perfect for grades 7-8 (ages 13-15). Advanced experiments introducing complex scientific methodology.
Senior Projects
Challenging projects for grades 9-12 (ages 14-18). Original research opportunities and advanced scientific investigation.
Why Choose Our Science Projects?
A group of project advisors identified the best science projects for educational value, attractiveness, versatility, and availability of materials. Most projects focus on energy, environment, and health - key topics in modern STEM education.
| A group of project advisors at ScienceProject.com identified the 10 best science projects for the school year 2005-2006. Not surprisingly, most of these projects are related to energy, environment and health. Selections are based on the educational value, attractiveness, versatility and availability of material and equipment. |
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Popular Science Fair Projects
Explore our most popular and educationally valuable science experiments. Each project includes complete instructions, materials lists, and safety guidelines.
Make Electricity from Fruits
Learn how fruits can generate electricity through simple electrochemical reactions. Perfect introduction to electrical circuits and chemical energy conversion.
Air Battery - Make Electricity from Saltwater
Revolutionary method to generate electricity using air and saltwater. Demonstrates oxidation-reduction reactions and sustainable energy concepts.
Wooden Generator
Build a working electrical generator using wooden parts, magnets, and copper wire. Demonstrates electromagnetic induction principles.
Make a DNA Double Helix Model
Construct an accurate 3D model of DNA structure. Learn about genetics, molecular biology, and the building blocks of life.
Electromagnet Projects
Build working electromagnets and explore magnetic fields. Create doorbells, telegraph systems, and magnetic cranes.
Plants and Light Experiments
Compare plant growth under sunlight vs artificial light. Investigate photosynthesis and plant biology concepts.
Magnetic Levitation
Experience gravity-defying effects of magnetism. Build floating ring demonstrations and magnetic spring scales.
Starch Detection in Foods
Test various foods for starch content using simple chemical indicators. Learn about carbohydrates and nutrition science.
Create Your Own Water Cycle
Build a working model of Earth's water cycle. Demonstrate evaporation, condensation, and precipitation processes.
View All Science Projects
Browse over 1000+ free science fair project ideas organized by grade level and subject
Educational Resources & Science Kits
Science Fair Project Kits
Complete experiment kits with all materials included. Perfect for hands-on learning and science fair competitions.
Browse KitsSchool Science Supplies
Educational supplies for chemistry, physics, biology and electronics training. Bulk pricing for schools available.
School OrdersStudent Science Supplies
Individual science supplies and educational materials. Fast shipping and competitive prices for students.
Student SuppliesAdditional Resources
Periodic table reference, science fair tips, and additional educational content to support your learning.
More ResourcesFrequently Asked Questions
Are these science projects safe for children?
Yes, all our science projects are designed with safety as the top priority. We provide clear safety guidelines for each experiment and recommend adult supervision for younger students. Projects are categorized by appropriate age groups to ensure age-appropriate activities.
How do I choose the right project for my grade level?
Our projects are organized by grade level: Primary (K-4), Elementary (4-6), Intermediate (7-8), and Senior (9-12). Each category is designed to match the cognitive abilities and safety requirements of that age group. You can also browse by subject area to find projects that match your interests.
What materials do I need for these experiments?
Each project includes a complete materials list. Most experiments use common household items or inexpensive supplies available at local stores. For convenience, we also offer complete science kits with all materials included and pre-measured for immediate use.
Can these projects be used for science fair competitions?
Absolutely! Our projects are specifically designed for science fair competitions and classroom assignments. Each project follows the scientific method and includes hypothesis formation, experimentation, data collection, and conclusion drawing. Many students have won awards using our project ideas.
How long do these science projects take to complete?
Project duration varies by complexity. Simple projects can be completed in 1-2 hours, while more advanced experiments may require several days or weeks for observation and data collection. Each project description includes estimated time requirements to help with planning.