- Substances are made from different types of atoms, which combine with one another in various ways. Atoms form molecules that range in size from two to thousands of atoms.
- Each pure substance has characteristic physical properties (for any bulk quantity under given conditions) that can be used to identify it.
- Do Now– Get out your science notebook and add to the Table of Contents-“Effect of Mass- p.56” (Left Side). Head page 56 properly with Effect of Mass-Model & Conclusion-2/1/17. Answer After Lab is Completed questions 1-5 on Lab Safety Checklist.
- Investigation– What is the relationship between mass and density for objects of equal volume? Set up model and conclusion page 56. Review data as a class. Graph data on graph paper. Model relative size and arrangement of atoms/molecules in metal, plastic, & wooden cubes. Write conclusion. Trim and tape data table as flip page to p.57 and tape graph paper as flip page to p.56.