Dr. Amanda Foster

Learning how to build a simple electromagnet is one of the most rewarding hands-on science experiments you can do at home or in the classroom. With just a battery, some copper wire, and an iron nail, you can create a real working magnet in under 10 minutes. Best of all, this project teaches you the … Read more

Learning how to assess a hands-on science project fairly is one of the most important skills a science educator or judge can develop. When students pour weeks of effort into experiments, the way we evaluate their work shapes whether they walk away inspired or discouraged. I have sat at judging tables, watched parents quietly help … Read more

If you have ever opened a robotics starter kit, stared at the small plastic bag of wires and circuit boards, and thought “where do I even begin?” you are definitely not alone. We have been there, and it is exactly the moment this guide was written for. Planning beginner robotics projects with a starter kit … Read more

Spy movies make invisible ink look like high-tech wizardry, but the truth is far more interesting. Some of the best invisible ink methods use ingredients you already have in your kitchen right now. Back during the American Revolution, George Washington’s spy ring used invisible ink to pass military secrets behind enemy lines. A doctor named … Read more

Clean, clear water does not always mean safe water. We have all seen photos of murky rivers turning crystal clear after passing through layers of sand, gravel, and charcoal, and we wondered if we could replicate that at home. In this guide, I walk you through how to build a water filter from household materials … Read more

If you have ever wondered why your bathroom mirror fogs up after a hot shower, or why a cold drink “sweats” on a summer day, you have already witnessed condensation in action. The cloud in a jar experiment brings that same invisible process into your hands, letting you watch a real cloud form in under … Read more

Growing mold on bread is one of the easiest and most rewarding science experiments you can do at home, in a classroom, or for a science fair. In this guide, I will walk you through how to grow mold on bread as a controlled experiment, including the supplies you need, the exact steps to follow, … Read more

When my daughter came home with a science fair assignment sheet last fall, I knew exactly which experiment we were doing together. Learning how to test which paper towel brand absorbs the most water is one of the most popular classroom projects for a reason: it teaches real science, uses supplies you already have, and … Read more

Last spring, our team ran a plant growth experiment with light variables across 24 classroom trays. We watched radish seeds push through soil in 4 days under blue LEDs, while the same seeds under green light barely broke ground after 14. That single experiment showed me exactly how powerful a well-designed light study can be. … Read more

Learning how to build a solar oven and measure how hot it gets is one of the most rewarding hands-on science projects you can tackle at home. A well-built homemade solar oven can reach temperatures between 200 and 350 degrees Fahrenheit using nothing but sunlight and materials you probably already have lying around your garage. … Read more