In the second part of this two-part series on magnetic fields, we use ferrofluid to observe the lines of magnetic force. Ferrofluid is a ferromagnetic liquid that can form amazing patterns and sculptures when it comes in contact with a magnetic field.
Magnetic fields are made up of the invisible force surrounding a magnet. Iron filings can be used to observe the shape and size of magnetic fields as they align to these lines of force. This video is part one in a two-part series exploring magnetic fields.
After seeing our original elephant toothpaste video, Ms. Woods, our school nurse, wanted to give it a try. By using an Erlenmeyer flask instead of a graduated cylinder, the reaction was able to build up more pressure, creating a more explosive release of oxygen gas.
Glow sticks give off light because of a chemical reaction between hydrogen peroxide and diphenyl oxalate that emits light. This process of light being given off by a chemical reaction is called chemical luminescence. In this video we look at the luminescent properties of this reaction.
In the winter of 2014, our classroom received a new resident – a yellow-bellied slider turtle named Leonardo. He was donated to our class by Ruth and Troy Machamer of Kernersville, NC, along with a 20 gallon aquarium and accessories. The students are enjoying watching Leonardo and learning more about turtles and their habitats. Click the thumbnails below to view larger images, and check back to see new photos and videos of Leonardo in our classroom!