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Eighth Grade Science Experiments (top 2,000 results)

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Create Light Up Artwork with a Raspberry Pi
Science Fair Project Idea
Scientific Method
Have you ever seen night lights that automatically turn on when it gets dark? What about art projects, like paintings or sculptures, with embedded lights? This project will let you combine the two, by adding lights to an art project of your choice. You can make the lights automatically turn on when it gets dark using a Raspberry Pi. Check out the video to see what this simple, but fun, project looks like. IMPORTANT: The instructions for this project were originally written using Scratch 2 on a… Read more
Creative Paper Circuits with Copper Tape
Blog Post
With paper, markers, LEDs, and copper tape, kids can get a hands-on introduction to electronics and circuits and turn their own drawings and creative projects into ones that light up! The intersection between art and science is one that holds particular interest for me, and I very much appreciate when my kids have the opportunity to do projects that support their creativity as well as let them get hands-on with science, technology, engineering, and… Read more
Cryopreservation: Freezing Plant Tissues
Science Fair Project Idea
Scientific Method
Cryopreservation—storing seeds in ultra-cold liquid nitrogen—is one method for maintaining plant genetic stocks in seed banks. Can seeds withstand a really deep freeze and still germinate? Read more
Crystal Chemistry: Weekly Science Project Idea/Home Science Activity Spotlight
Blog Post
In this week's spotlight: a pair of projects that extend a classic chemistry exploration—growing crystals. Growing crystals makes for excellent and engaging hands-on, kitchen science that can be enjoyed by all ages, but what determines the size of the crystals? Explore the relationship between temperature and crystal formation in these science project and activity procedures: Crazy Crystal Creations: How to Grow the Best and the Largest Crystals (full Science Buddies Project… Read more
Cucumber Chemistry: The Drying Power of Dessicants
Blog Post
Substances that can absorb water from the environment can help keep products dry—or help dry out something that has gotten wet, like an electronic device. The small silica gel packets that you often find when you open a new product are used to help keep the product dry. The properties that make a silica gel packet work are properties you can find in other substances as well. There are even ordinary kitchen ingredients that can be used to absorb moisture and help to dry something… Read more
Curling Metal: Doing Fun Science at Home during School Closures (Activity #21)
Blog Post
Follow along with a Science Buddies parent who is using family STEM activities to keep her kids learning at home during the COVID-19 school shutdown. New posts every Monday, Wednesday, and Friday. Today's adventure... exploring how heat expands aluminum foil. Example of aluminum foil and paper strip being held over a flame and curling Sensory Play as a Young Version of Materials Science When my kids were little, they loved the sensory table at their… Read more
Dancing Water Droplets
Blog Post
With this week's fun family science activity, you can create an exciting visual display using water and food coloring! How do water droplets react on a surface material? Do they roll off? Do they disperse? Do they move together? How do they react to each other? Depending on the surface material and the liquid, you may find that droplets move in a variety of different ways. These patterns of movement demonstrate several different science principles. What determines whether droplets spread… Read more
Data Models
Science Fair Project Idea
Scientific Method
Math is used by many different types of scientists to model phenomenon and evaluate data from an experiment. By building mathematical models scientists can understand how different physical, chemical, and biological processes are affected by different variables. The most important tools are: making a graph to give a visual representation of the relationships between your variables and making an equation to give a way of computing the relationships between your variables. Find a source of data,… Read more
Day or Night?
Science Fair Project Idea
Scientific Method
Animals have different levels of activity depending upon their habitat, metabolism and behavior. Diurnal animals are more active during the day. Nocturnal animals are more active at night. Being diurnal or nocturnal may have different advantages for different animals. For example, desert animals tend to be nocturnal so they can stay cool and escape the desert heat present during the day. What types of diurnal and nocturnal animals are common in your area? You can set out a small trap to… Read more
Deep Knee Bends: Measuring Knee Stress with a Mechanical Model
Science Fair Project Idea
Scientific Method
Are you interested in things like prosthetic limbs and artificial joints that can help people with disease or injury to lead a normal life? Or maybe you're interested in sports medicine or physical therapy? Either way, this project could be a good match for you. Find out how the tension on the knee joint changes as a function of angle by building a simple mechanical model. Read more
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