Curated OER
Qualitative Vs. Quantitative
Fourth graders examine the difference between qualitative and quantitative observations by doing a simple lab activity. This instructional activity can be used at any grade level. It involves the basic observation process skill.
Science Education Resource Center at Carleton College
Serc: Chemical Changes: Reacting an Acid and Base
In this chemistry lab, students will investigate chemical changes that occur when acids and bases react. It is meant to introduce the concepts of chemical changes, gases have mass, conservation of mass, and balancing equations. Students...