This week, we are covering types of reactions and balancing equation in Chemistry. The PhET (Physics Education Technology) Interactive Simulations really help my students understand the basis of why equations must be balanced, helping them relate back to the idea of Conservation of Matter.
There are over 100 simulations on their website, all are FREE! Many of the older ones, such as Gas Properties, require Java and can only run on a computer. The newer ones, such as Balancing Chemical Equations, have been converted to HTML5.
The simulations are not limited to Chemistry topics. There are also simulations for Biology, Physics, Earth Science, and Math.