Atomic Structure & Chemical Reactions
NGSS Performance Expectations
- MS-PS1-1 Develop models to describe the atomic composition of simple molecules and extended structures.
- MS-PS1-2 Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.
- MS-PS1-5 Develop and use a model to describe how the total number of atoms does not change in a chemical reaction and thus mass is conserved.
- MS-PS1-6 Undertake a design project to construct, test and modify a device that either releases or absorbs thermal energy by chemical processes.
- The atom is the basic unit of every element.
- The fact that matter is composed of atoms and molecules can be used to explain the properties of substances, diversity of material, states of matter, phase changes, and conservation of matter.
- Reacting substances rearrange to form different molecules, but the number of atoms is conserved. Some reactions release energy and others absorb energy
- How can the chemical and physical properties of a substance determine its identity?
- What happens to the individual atoms of a substance when a chemical reaction occurs?
- What is matter composed of and how can we use this information to improve our lives?
- How and why do we create models of something we can't see?
- How is the periodic table of elements used to help us understand matter
- What if there were no chemical reactions?
- Why is conservation of matter important?
http://www.chem4kids.com/files/matter_states.html
http://teacher.scholastic.com/activities/studyjams/matter_states/
http://www.chemicool.com/
http://www.phschool.com/webcodes10/index.cfm?fuseaction=home.gotoWebCode&wcprefix=cgd&wcsuffix=1012
http://www.chem4kids.com/files/react_acidbase.html
http://www.chemtutor.com/acid.htm
http://scienceview.berkeley.edu/showcase/flash/juicebar.html
http://www.chemguide.co.uk/atoms/bonding/ionic.html
http://lgfl.skoool.co.uk/content.aspx?id=64