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Sustainable Cities and Communities, Eighth Grade Science Projects (24 results)

The United Nations Sustainable Development Goals (UNSDGs) are a blueprint to achieve a better and more sustainable future for all.
These projects explore topics key to Sustainable Cities and Communities: Make cities inclusive, safe, resilient and sustainable.

Science Buddies' eighth grade science projects are the perfect way for eighth grade students to have fun exploring science, technology, engineering, and math (STEM). Our eighth grade projects are written and tested by scientists and are specifically created for use by students in the eighth grade. Students can choose to follow the science experiment as written or put their own spin on the project.

For a personalized list of science projects, eighth graders can use the Science Buddies Topic Selection Wizard. The wizard asks students to respond to a series of simple statements and then uses their answers to recommend age-appropriate projects that fit their interests.

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Can Plants Stop Soil Erosion?
Science Fair Project Idea
Scientific Method
Soil erosion can cost the world billions of dollars every year by washing pollutants into our streams and rivers and by causing the loss of farmland. What can you do about this problem? Help save the world (and some money!) with nothing more than a few plants! Read more
Comparing Different Types of Irrigation Systems
Science Fair Project Idea
Scientific Method
With heat waves impacting the world globally, many gardeners, farmers, and scientists are turning to passive irrigation systems that reduce fossil fuel emissions while keeping plants well-watered and alive in the sweltering heat. In this science experiment, you will compare and contrast the effectiveness of passive irrigation systems compared to traditional surface irrigation systems and their impact on overall plant growth. Read more
Detect Litter with Machine Learning
Science Fair Project Idea
Engineering Design Process
Litter is not only an eyesore but also a serious threat to wildlife and the environment. While some littering is intentional, much of it occurs accidentally–such as when trash falls from garbage trucks or strong winds scatter waste from bins. Machine learning offers a powerful solution for detecting litter, paving the way for future innovations, including autonomous robots capable of cleaning up our surroundings.  Read more
Do Your Storm Drains Keep the Ocean Trash Free?
Science Fair Project Idea
Scientific Method
Did you know that there is plastic in the ocean? It probably isn't too hard to imagine that some of the plastic that litters roadways, sidewalks, and parks finds its way into the ocean. So, how much do you think is in there? Hundreds of pounds of plastic? How about thousands of pounds? No one knows for sure, but estimates, based on scientific surveys, suggest the amount is in the range of millions of pounds of plastic! Of course, the ocean is big, over 300 million square kilometers, so… Read more
Earthquakes
Science Fair Project Idea
Scientific Method
Visit the USGS Earthquake Hazards Program to find out about global patterns of earthquake incidents (USGS, 2006). Can mapping earthquakes help identify fault lines? They also have a list of science fair project ideas. Another great resource for earthquake-oriented science fair projects is by Jeffery Barker (Barker, 1994). Build a model to study the forces of an earthquake using sandpaper-covered blocks. What are the forces involved? How are stress and friction in balance along a fault line?… Read more
Factors that Affect the Transfer of Force through Saturated Soil
Science Fair Project Idea
Scientific Method
Soil liquefaction is a phenomenon where soil that is saturated with water suddenly loses its strength and behaves like a liquid. This usually occurs due to sudden, large stresses on the soil — for example, from an earthquake. This can be very dangerous for buildings sitting on top of the soil, as they can suddenly sink into the ground! The embedded video explains soil liquefaction in more detail. Is there a way to prevent soil liquefaction? Do you think adding certain materials to… Read more
Go Fish! Creating an Ocean-Friendly Fishing Video Game
Science Fair Project Idea
Engineering Design Process
Video games are entertainment, but like other such media (say Oscar-winning movies or award-winning books), they can also point out challenges facing people. In this science project, you will design and create a fishing video game that teaches the player about which fish are plentiful enough to catch and which fish are not because their population is declining. Maybe your game can help solve the problem of over-fishing and help sustain healthy fish populations. All while having fun of course! Read more
He Huffed, and He Puffed, But Didn't Blow the House Down! How Can Straw Make a Sturdy Building?
Science Fair Project Idea
Scientific Method
In the fairy tale of the three little pigs, the wolf huffed and puffed and blew down the first pig's straw house. But in reality, straw, tied into bales, is a viable building material that, when used properly, makes sturdy and energy-efficient buildings. Straw is a renewable resource that is available all over the world since it is the byproduct of growing grain. In this science fair project, you will test a straw bale covered with stucco to see if it's water resistant, and evaluate if it's… Read more
How Does Soil Change with Depth?
Science Fair Project Idea
Scientific Method
What covers less than 10% of the Earth's surface, yet is a vital natural resource for terrestrial life? What filters ground water and supports most of our food production, not to mention the production of building materials and paper? The answer, often overlooked, is: soil. With this project you can get all the dirt on soil formation, soil horizons, and the composition of different soils. Read more
How Fast Do Seismic Waves Travel?
Science Fair Project Idea
Scientific Method
Have you ever wondered how fast a seismic wave from an earthquake travels? In this geology science project you can figure this out using historical seismograph data that you can collect from the comfort of your own computer. You will use a web interface to a network of seismometers run by the Northern California Earthquake Data Center, at the University of California, Berkeley. From the seismograms you make, you will be able to measure the time it took for the seismic waves to travel from the… Read more
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