How can one easily classify metals, nonmetals, and metalloids? Pupils answer this question as they experiment with unknown substances and perform tests on conductivity, brittleness, and malleability to determine...

What an exciting way to introduce your blossoming chemists to the world of metals, nonmetals, metalloids, and polymers! Here is a lab activity that is designed to allow pupils the opportunity to visualize the reaction of metals,...

Did you know you can melt the metal gallium with just the heat of your hand? Pupils observe and test materials in order to classify them as metal or non-metal. A reading passage and analysis questions wrap up the lesson.