Seventh grade science fair projects can be an engaging way for students to introduce them to the formal scientific method. With proper guidance, students can devise intriguing experiments such as glow-in-the-dark paper or unexpected chemical reactions!
Kids love exploring how things work! They will have great fun experimenting to see whether oil floats on water and finding out how much force is necessary to break a balloon, among many other experiments!
Solar Oven Experiment
Students can construct a solar oven with this simple science project using materials found around their house. Students build an oven within an oven using materials found throughout their house and add an “openable window” made of plastic to allow both direct and reflected sunlight into their oven, while keeping heat inside.
They then line it with aluminum foil and black paper to trap heat, and cook a snack in their DIY solar oven.
Spherification is an interesting chemistry experiment and makes great party favors! Spherification involves encasing liquid within a gel shell, creating fun chemistry experiments while also giving away party favors!
Use this food science project to explore molecular gastronomy. You will need sodium alginate, graph paper with lines spaced 1 or 2 millimeters apart and calcium chloride solution as well as a dropper and syringe.
This hands-on science fair project challenges students to use their design and engineering abilities to construct a hand model. Not only is this activity engaging, but also provides an excellent way to gain an insight into human anatomy!
Biofilm, or the accumulation of bacteria on objects in water, is known as biofilm. Learn more about its formation through this ecology experiment!
Egg Float Experiment
Parents, please be aware: this science experiment involves working with raw eggs. Please carefully adhere to all instructions so you don’t crack yours!
Children engage in this chemistry experiment to explore buoyancy and why certain objects float while others sink, as well as why saltwater densifies quicker than freshwater.
Students then determine how much salt is necessary to make an egg float.
Ancient Egypt made time an essential factor for religious rituals and festival calculations, using sundials to keep track of daylight hours while using other indicators for nighttime hours. They were one of the first civilizations to divide their days into hours-like segments that made sense in terms of calendar dates.
They invented a water clock, commonly referred to as a clepsydra. This device measured time by tracking how much water passed through a small hole into an enclosure at each interval.
Making slime is a wonderful way for children to learn about viscosity and flow, while simultaneously discussing chemical changes that alter materials’ properties.
Have your children measure how far each slime sample flows in a predetermined period (such as 4 minutes). Remind them that science fair experiments must provide tangible results.
Paper Strength Experiment
Paperboard and paper samples must withstand certain forces during manufacturing, transportation, shipping, and use. This test aims to assess their bursting strength.
Discover how different types of paper stack up against 10g weights in this fascinating STEM experiment. Understand why certain shapes are stronger than others by creating square, triangular and circular columns of paper tensile strength testing them against 10g.
Plant Maze Experiment
Students will love testing their engineering abilities with this Rube Goldberg machine while simultaneously learning about physics and mechanics.
Find new ways to get kids interested in plants by setting them a challenge! This experiment will teach them that plants always seek light. Plus, it’s an affordable and simple experiment you can conduct at home!
Peppermint Candy Experiment
Children love this hands-on science experiment that explores how peppermints dissolve at various temperatures. Set-up is easy, making this an engaging way for them to follow directions, expand their vocabulary and develop fine motor skills.
Discover if eating peppermint improves reaction times during periods of mental fatigue with this engaging eighth grade science experiment! It’s simple and fascinating!
Greenhouse Effect Experiment
Students can gain an understanding of the greenhouse effect and its effect on temperature with this experiment, using basic materials like glass bottles or jars, small globes (like those from lava lamps) and oil.
Unfold oxidation with this easy and engaging chemistry experiment! Simply gather some natural materials as well as willing participants.