Science fairs allow 7th graders to broaden their scientific skills as young scientists. Students can practice using the scientific method by coming up with their own question, designing an experiment to test it, and finally designing and creating an eye-catching display board – all through practicing this important scientific discipline!
Explore which popcorn brand produces the highest kernel yield and explore insulators with this science project. Students also conduct an investigation of biofilms which form on everyday objects.
Build a Hand
Students will love learning how to create an artificial gripper capable of picking up various objects from paper cups to ping-pong balls, while discovering how human fingers bend and are organized.
Make the spherification process used by top restaurants into an engaging chemistry experiment for seventh graders! Although you will require special supplies, their results will surely impress them!
Build a Bridge
Students can engineer a bridge out of simple materials to test its strength, providing them with an opportunity to explore forces such as gravity and further their understanding of geometry concepts. This project can also serve as an excellent way for them to explore forces such as electromagnetism.
Do air temperatures influence bubble formation? Find out in this fun and educational experiment!
Put yourself in Linnaeus’ shoes with this system of taxonomy experiment! Not only does it teach kids about biology but it also introduces them to scientific method and the scientific method.
Build a Cellular Mitosis Model
Students build a model to illustrate the cell cycle and mitosis (cell division). Students learn about four stages of mitosis – prophase, metaphase, anaphase and telophase – of mitosis in mitosis (some textbooks add an additional fifth stage called “cytokinesis”).
Do sugar types affect yeast growth? Discover this answer through this easy science experiment.
What do your intestines, an expanding yeast population and an infant frog have in common? All three need to undergo mitosis in order to grow.
Build a Pet Feeder
Create your own bird feeder to attract birds you can study up close. This project teaches students about engineering and observation skills.
Explore whether certain colors improve memory with this easy experiment using jelly beans.
Here you’ll find other cool science experiments or you can use the Science Buds Topic Selection Wizard to narrow down a selection of projects tailored specifically for seventh graders. Keep in mind that good science fair projects must focus on controlling variables, taking accurate measurements and recording data.
Build a Wave Machine
Students explore the properties of waves using an easy model made with duct tape and wooden skewers (careful: sharp!). This science fair project doesn’t require much preparation time!
This demonstration illustrates how wave crests and troughs line up and overlap. Ebenezer Snell used this model in his teaching at Amherst College as part of physics education efforts in 19th-century America.
Students use a computer cooling fan to build an oscillating water column device and submerge it in deep water in order to study voltage, current, and electromagnetic energy.
Build a Taxonomy System
As kids enter 7th grade, they should possess a greater knowledge of the scientific method and how different branches such as biology, chemistry and physics intersect with one another. Through engaging experiments they will discover these connections for themselves through hands-on exploration.
As an example, children can learn why oil floats on water by conducting this simple density experiment or step into Linnaeus’ footsteps and create their own taxonomy project using this simple taxonomy project.
Build a Water Filtration System
Students use an engineering design process to construct water filters. After testing them with simulated dirty water samples, students write their results on a worksheet.
Children explore how bacteria collect on surfaces to form sticky biofilm, as part of this 7th grade science experiment. They’ll then brainstorm ways to limit biofilm accumulation in water sources.
Make slime-making a fun chemistry experiment for kids of all ages with this easy project! They will enjoy using their creativity to experiment with various ingredients.
Build a Texting Glossary
An engaging title helps draw viewers’ attention and conveys what your experiment involves. A strong title should be both short and informative.
Before students begin brainstorming projects for science fair, play one or both BrainPOP or BrainPOP Jr. science and health movies as an introduction to what makes for a strong science fair project and then assign each pair the task of narrowing down their ideas.
Build a Sports Drink Electrolyte Experiment
Students use multimeters to assess the electrolyte content of popular sports drinks, then replicate this sample by testing its density, conductivity and pH values.
Young engineers can explore thermal energy, reflection and convection with this fun science project that utilizes a soda can.
Potatoes make for an engaging electrolyte solution in this educational chemistry experiment that is perfect for kids learning about electricity – perfect for science fairs or classrooms alike!