Group items tagged

This website gives the density, melting, and boiling points of various common solid materials. The students could use this site as they are trying to decide on which physical properties to use to separate recyclable materials from a mixture of trash.

Do you know how long it takes a plastic bottle to decompose? How about a leather shoe? This site gives a fun activity that you can follow and discover just how long it takes for some materials to decompose.

This is a catchy song that will help the students remember the differences between physical and chemical properties. They need to think about various properties in order to determine how materials can be separated during the recycling process.