Students analyze the relationship between density, buoyancy, and salinity. In this chemical properties lesson, students read a background activity for the lesson and experiments to the topics. Students discuss the questions and complete...

Students, in groups, design a procedure to calculate the mass of gas molecules in the classroom by measuring the volume of the classroom and researching the density of air. They apply changes in air density with altitude and effects on a...

Young scholars investigate what matter is and how it changes states.  For this physical properties lesson, students examine the vocabulary database and identify the characteristics of the three phases of matter.  Young scholars...