A head on elastic collision between an object with mass M and an object with mass 3M traveling with equal speeds results in all the kinetic energy of the system being transferred to the smaller mass. In this demonstration we try to follow this arrangement to produce a surprising effect.
This demonstration/activity introduces students to the concept of limiting reagent in a chemical reaction. Too often, students think that one can produce more product by using larger quantities of... read more
This student activity illustrates how plants grow away from or towards a stimulus by continuing cell growth and elongation on one side of the stem while ceasing cell growth and elongation on the... read more
In this activity, students mix a given quantity of salt with a fixed volume of water. Mass and volume measurements are made before and after mixing to determine if these quantities change. Students... read more