The Fire Syringe - Starting a Fire with Air Compression

Posted by Joe Sitter on

The fire syringe is an excellent demonstration of what happens when you rapidly compress air. Nearly every gas heats up when compressed and the fire syringe is an exciting demonstration of that. This can make for an excellent physics or chemistry classroom demonstration. Topics covered in a fire syringe demonstration...

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5 Questions to Ask Before Picking a Science Fair Project

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Choosing a science fair project can be difficult. You should consider what you're studying in class, current events and your own personal interests when determining your science fair project topic. Once you come up with some ideas, it's time to narrow down your choices. If you think you have your...

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What Are Magnetic Stirrers, or Stirbars?

Posted by Joe Sitter on

Magnetic stirrers are used in chemistry and biology. Most people have not come in contact with a magnetic stirrer because they do not work in a field where they have to use them. Magnetic stirrers are used in place of motorized stirrers because they are quieter and because there are...

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What Is Agar?

Posted by Joe Sitter on

Agar or agar-agar is a gelatinous substance that is made from seaweed or other algae. It has several scientific uses but is also used in culinary dishes as well. The most common forms of agar consist of two substances called agarose and agaropectin. These are forms of carbohydrates and polysaccharides that...

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