Activity 8: Exploration of Chemistry

Activity 8: Exploration of Chemistry
For activity 8, students have a choice to explore other topics of chemistry presented in the PhET simulations.
Tasks to be completed:
1. Choose any Teaching Idea from any of the Chemistry Simulations (http://phet.colorado.edu/en/simulations/category/chemistry ) and post your results/data and/or answers on your blog.

2. Work with any of the Chemistry Simulations to create your own Teaching Idea. The criteria for this is as follows:

 Vocab to know:

• Proton: a particle of positive charge located in the nucleus of an atom
• Neutron: a particle with no charge located in the nucleus of an atom
• Electron: a particle of negative charge located outside the nucleus of an atom
• Charge: a property of matter that causes it to experience a force when near electrically charged matter. There are two types of charge positive and negative.
• Electricity: the movement of electric charge
• Static Electricity: build up of charge on the surface of an object

Questions and Guidelines:

1.  Open the Balloons and Static Electricity Simulator.
2. Does the balloon have a positive, negative or  neutral charge?
3. Rub the balloon onto the sweater.
4. Do the protons or electrons transfer to the balloon?
5. Now, bring the balloon over to the wall.
6. What happens to the electrons on the wall?
7. Hold the balloon in between the wall and the sweater.
8. What happens to the balloon?
9. Do opposite charges or like charges attract each other?

MS-PS3-2. Develop a model to describe that when the arrangement of objects interacting at a distance changes, different amounts of potential energy are stored in the system.

MS-PS2-3. Ask questions about data to determine the factors that affect the strength of electric and magnetic forces.

 MS-PS2-5. Conduct an investigation and evaluate the experimental design to provide evidence that fields exist between objects exerting forces on each other even though the objects are not in contact.