Students conducting science fair projects typically select a scientific question they wish to explore and conduct research using library and Internet databases, then design an experiment to test their hypothesis before writing up a report to present to classmates and teachers.
Experience chemistry and physics concepts through these engaging 7th grade science fair projects! Budding engineers will have great fun constructing balloon-powered cars!
Cellular Mitosis Models
Cellular mitosis is an intricate process with many distinct steps. To help seventh graders better comprehend it, try building this straightforward model made out of household items like plates and toothpicks. Students can create interphase, prophase, metaphase and telophase plates by adhering the DNA strands onto the plates in sequence.
Learn about how bacteria grow and spread with this fun experiment that compares the cleanliness of everyday objects. Students swab various surfaces before testing results in this scientific investigation.
Plastic bags, food coloring, water, and markers allow kids to recreate a miniature version of Earth’s water cycle for use as classroom activities or science fair projects in 7th grade classrooms. This project makes an excellent classroom activity.
Homeostasis
Homeostasis is an essential scientific concept to teach 7th graders, and this popular experiment makes learning about it both engaging and enjoyable with just simple supplies. Students can swab household objects and school supplies for living organisms and then use those results to understand bacterial growth processes.
Students can discover how fluids affect a person’s blood pressure and other bodily functions with this engaging four-day experiment that allows them to test urine levels using litmus paper on day 1, carbonated dark soda on day 2, salt water on day 3 and coffee on day 4.
Students can investigate how oil and water differ in terms of density with this educational experiment, which also allows them to build their own wave machine to comprehend how different substances generate waves.
Jelly Bean Demo
7th grade students can enjoy learning the fundamentals of lab work and chemistry with this fun experiment that doubles as a tasty treat! Children learn meiosis by creating a model out of Oreo cookies decorated with colorful sprinkles, then enjoy eating their tasty snack!
Students can explore what bacteria exist on household items and school supplies using this easy experiment, then attempt to eradicate any remaining bacteria on them.
This jelly bean science activity allows children to explore chromatography using simple materials they likely already have at home, with stunning results and engaging lessons for kids of all ages! They love this hands-on science activity!
Bridge-Building Experiment
Explore how to build a bridge with this science fair project inspired by Leonardo da Vinci’s self-supporting wooden bridge. Students will use toothpicks and glue to form three connecting triangles called trusss before testing its strength by loading different objects onto it.
Students can use this project to gain an understanding of basic physical forces such as tension and compression, as well as explore how bridges are built by testing out different materials and designs.
This experiment is perfect for 7th graders interested in nutrition, health & psychology or chemistry. Students will investigate whether cooked vegetables and fruits contain more or less Vitamin C than raw ones; their findings may surprise them! This experiment can also be used as an introduction to water cycles.
Clock
Seventh grade is an opportunity for kids to fully engage with science fair projects on their own, without parent guidance and direction. Parents can still provide assistance (such as helping design experiments that can be managed), while encouraging their students to investigate scientific questions of personal interest.
Students interested in weather can use this simple project to build their own water clock to track three hours of time, while those curious about physics could construct a crystal radio and discover more about what elements comprise its construction.
An experiment to demonstrate how temperature affects bubble life. Finally, students interested in nutrition can see whether caffeine helps them work more effectively.