Science Education Resource Center at Carleton College
Serc: Conservation of Mass Gum Lab
Students investigate whether or not chewing gum should be considered eating using the law of conservation of mass to reason that the portion lost of the original mass of gum must be swallowed.
American Chemical Society
Middle School Chemistry: Lesson Plans: What Is a Chemical Reaction?
After observing a demonstration of a chemical reaction between a burning candle and the oxygen in the air, young scholars use atom model cut-outs to model the reaction and see that all the atoms in the reactants show up in the products.
Open Curriculum
Open Curriculum: Images, Quantitatively
This article helps students quantitatively describe the changes in images on mirrors or other surfaces.
Science Education Resource Center at Carleton College
Serc: Polymers & Plastics: Classification & Models
Young scholars will use their prior knowledge about changes of matter including physical and chemical changes to examine and categorize various types of plastics (polymers). They will identify how their chemical properties allow them to...
NC State University
The Science House: Chromatography of Foods [Pdf]
Students will practice the technique of chromatography by separating a mixture of FD&C dyes. Questions related to the experiment along with the answers are available for use by the teacher.
New York University
Nyu: Math Mol: Motion of Molecules
Examine the link between molecular motion and energy. Observe the movement of a molecule at room temperature. Learn about the different types of molecular motion.
Science Education Resource Center at Carleton College
Serc: Investigating Plastic Polymers: Building a Model
Students will use their prior knowledge about changes of matter including physical and chemical changes from the Houghton Mifflin science curriculum. Students will create a hypothesis to test the physical properties of materials such as...