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Difference Between Different Composts
Food scraps and yard or garden waste make up to 20 to 30 percent of trash that ends up in the landfill, according to the United States Environmental Protection Agency. Composting is a way to...
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What Does Biodiesel Smell Like?
Vegetable oils and animal fat can help a restaurant whip up a batch of French fries -- and power a vehicle that might smell like them. Biodiesel, which is made using these natural substances, is a safe...
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How to Build a Solar Absorber Plate
Solar absorber plates are dark-colored metal plates that absorb sunlight and conduct heat, decreasing the amount of copper tubing needed in solar collectors (See References 1). Solar collectors for...
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Recent Evolutionary Traits or Loss of Traits
Some men grow beards in cold weather. Many people use sunscreen to protect against harmful rays. Individuals can take actions to adapt to their environment. However, these activities are not evolution,...
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How Does Recycling Influence Air Pollution?
Americans recycle a lot. According to the U.S. Environmental Protection Agency, 87 million tons of recycling or composting were diverted from landfills in 2012 alone. Recycling has a positive impact on...
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Effective Ways of Recycling and Reducing Non-Biodegradable Waste
Recycling is an old concept that's been repackaged with a new name. In older times it was called being frugal. Then, you patched the pot, put a new handle on the hammer and fixed broken furniture...
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Abiotic Factors of Pollution
While admiring a pristine babbling brook flowing near a lush green meadow, you may not notice the complexity of the environment. Yet, beyond your immediate vision lie biotic and abiotic factors that...
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How to Renew a 12 Volt Battery
Batteries are an important and portable source of power. They provide energy for tools, transportation, children's toys and so much more. Vehicles are generally powered by a 12-volt lead acid battery...
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How to Make a Diet Coke & Mentos Bomb
Diet Coke and Mentos can create a bomb or soda fountain when mixed, as the sugar in the candy reduces the energy necessary to form bubbles, which creates a fizzy reaction. Construct a diet soda and...
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How to Make a Miniature Volcano
Making a miniature volcano is simple by mixing in a small container baking soda, a bit of dish soap and vinegar that has been dyed red. See this volcanic chemical reaction with a demonstration from a...
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How to Build a Water Rocket
Building a water rocket involves using a launcher and stand, pumping water and air into a soda bottle and launching it outside to see it shoot up from the ground. Put together a water rocket with a...
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How to Make a Tesla Coil
A Tesla coil generates a very high-voltage, low-currant resonating AC electricity that is equivalent to a cattle prod or a Taser. Understand how a Tesla coil is made and used with a demonstration from...
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How to Make a Volcano
Making a volcano involves mixing active yeast, warm water, hydrogen peroxide, a bit of red food coloring and dish soap together into a small container to create a chemical reaction. Create a volcano,...
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How to Make a Tornado in a Bottle
To make a tornado in a bottle, fill a plastic bottle partially with water, add a few drops of dish soap and add a bit of glitter before swirling the water around to create a miniature cyclone. Create a...
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How to Make Flubber or Slime
Making flubber or slime is a fun project that involves mixing diluted Elmer's glue with a bit of dissolved borax to cross-link the molecules, creating a solid-like consistency from two liquids. Create...
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How to Blow Up a Balloon With Baking Soda & Vinegar
Blowing up a balloon with baking soda and vinegar involves pouring the baking soda in the balloon, pouring the vinegar in a bottle and stretching the mouth of the balloon over the bottle, dumping the...
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How to Build a Trebuchet
Building a trebuchet requires a wooden base, sides, masking tape, washers to use as weights, a glue gun, stapler and a push pin to create a table-top throwing arm. Assemble a miniature trebuchet with a...
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How to Build a Catapult
Building a catapult is simple, using a block of wood as a base, a plastic spoon as the arm, two push pins and a rubber band as the torsion energy. Assemble a simple catapult, using mini marshmallows as...
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How to Build a Rocket
Building a rocket out of recycled materials can be done using a paper towel tube, an old Easter egg, elastic, index cards, a plastic grocery bag and a simple model rocket engine. Assemble a rocket to...
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How Does a Light Bulb Work?
The working part of a light bulb is called the filament, which is a thin piece of metal that gets very hot. Discover how argon gas in a light bulb keeps the light bulb from burning with information...
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