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How Do Hand Warmers Work? A Scientific Look
science.howstuffworks.com/disposable-hand-warmers.htm
Hand warmers work through simple chemistry. A massively sped-up version of oxidation (the chemical reaction that makes rust) is to thank.
Does Bottled Water Go Bad?
science.howstuffworks.com/environmental/green-science/bottled-water-go-bad.htm
You may have seen an expiration date on your bottle of water, but why? Can a natural substance like water really go bad?
How to Remove Permanent Marker From Glass, Fabric and More
Permanent marker used in the wrong places can be a real headache, whether it's on a countertop, painted walls, clothing or your child's face. Knowing how to remove permanent marker stains can save you a lot of frustration.
Asian Lady Beetle vs. Ladybug: Yes, There's a Difference
animals.howstuffworks.com/insects/asian-lady-beetle-vs-ladybug.htm
Ladybugs might look alike at first glance, but not all of them are beneficial garden guests. If you're looking at a potential invader and unsure if it's an Asian lady beetle vs. ladybug, your confusion is entirely valid.
How to Make Toys
entertainment.howstuffworks.com/how-to-make-toys.htm
Learn how to make children's toys, from play dough to rocking horses and sandboxes, with clear instructions and illustrations.
How Perfume Works
science.howstuffworks.com/perfume.htm
Perfume is any substance that you wear and that smells. There are no requirements for it to smell good. Learn more about perfume at HowStuffWorks.
Understanding Sound Waves and How They Work
science.howstuffworks.com/sound-info.htm
When sound waves strike the ear, these waves produce the sensation of sound. Let's take a look at how sound waves work.
How Plastics Work
science.howstuffworks.com/plastic.htm
Plastics can be found in a wide variety of products. They are everywhere. Find out how plastics are made and learn about uses for plastics.
How to Repair a Refrigerator
home.howstuffworks.com/how-to-repair-a-refrigerator.htm
A refrigerator is one of the few appliances that runs continuously, day or night, keeping your food cold. Learn how to repair a refrigerator.
How Tankless Toilets Work
home.howstuffworks.com/tankless-toilet.htm
Tankless toilets, which conserve water and take up less space than standard models, are common in public restrooms and some urban homes. Are the benefits worth having one in your home?