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Eighth Grade, Energy & Power Science Projects (28 results)

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Batteries: The Shocking Truth
Science Fair Project Idea
Scientific Method
You probably use batteries to power different devices every day, ranging from toys to TV remotes, without giving it much thought. Figure 1, below, shows some common types of batteries. Eventually the batteries will die and you have to replace them with new ones (or recharge them if they are rechargeable batteries). How much do you actually know about how batteries work? This abbreviated project idea will give you some suggestions to investigate how batteries perform in common household… Read more
Catch the Wave!
Science Fair Project Idea
Scientific Method
There is a lot of energy that can be harvested from moving water. Energy can be extracted from water rushing over a waterfall and from the regular patterns of the ocean's tides. The energy that propels waves forward in the oceans can also be extracted and used. But can wave energy power plants be built anywhere there is water? In this energy science fair project, you will use ocean buoy data and mathematics to determine which locations along the coasts of the United States can sustain a wave… Read more
Green Your PC: Help Your Computer Save Power
Science Fair Project Idea
Scientific Method
Is your PC an energy hog? Check out this science fair project to determine how much power your PC really uses, and if it is an energy hog, how you can reduce its appetite for energy. You'll learn how to profile and streamline your computer's power usage, while still enjoying every feature of your machine. Read more
Tireless Tides: Extracting Energy from Ocean Tides
Science Fair Project Idea
Scientific Method
Renewable energy is the energy that is extracted from natural sources, such the Sun (solar), earth (geothermal), wind, and water (hydropower). These sources are renewable because they can be replenished by the same natural sources within a short period of time. Hydropower energy is extracted from moving water, like ocean wave energy and tidal energy. In this energy science fair project, you will make a model of a tidal barrage (also known as a dam) and investigate how emptying the tidal barrage… Read more
Renewable Energy Resources
Science Fair Project Idea
Scientific Method
Coal, gas, and oil are energy resources that are not renewable, meaning that once we use up the world's supply of these natural resources there will not be any left. There is a lot of debate about how long these resources will last. One way to ensure that we will not find ourselves in an energy crisis is to develop energy resources that are renewable. Renewable energy is a resource that cannot be used up. Investigate the many uses of renewable energy: solar energy, wind energy,… Read more
A Bright Idea for Saving Energy
Science Fair Project Idea
Scientific Method
In the United States, lighting for homes accounts for about 14% of all residential electricity usage (EIA, 2014). That's billions of dollars worth of electricity per year. The U.S. has passed legislation to phase out older, more inefficient incandescent light bulbs, and they are being replaced with newer, more-efficient bulb types like compact fluorescent lights (CFLs) or light-emitting diodes (LEDs). How much energy (measured in kilowatt-hours [kWh]) and how much money could be saved by… Read more
The Power of Balance
Science Fair Project Idea
Scientific Method
The Falkirk Wheel is a rotating boat lift connecting the Forth and Clyde Canal with the Union Canal near Falkirk in central Scotland. It consists of two diametrically opposed caissons which rotate to lift boats between the two canals through a height of 35 meters. The wheel is always perfectly balanced and, despite its enormous mass, rotates through 180° in less than four minutes, using just 1.5 kilowatt-hours (Wikipedia contributors, 2006). Do background research… Read more
How Does Dust Affect Solar Panel Power Output?
Science Fair Project Idea
Scientific Method
Scientists can use solar power to provide electricity on the Moon or Mars, but there is one big problem—dust! How does dust cover impact the power output of a solar panel? How could scientists and astronauts mitigate this problem to keep the solar panels producing at their maximum output? Try this science project yourself and find out! Read more
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