Module 2: Energy
Welcome to Module 2. Remember, you may work at your own pace. All
assignments for this module will be due (one week from the first day of
the class). This module on matter will cover the basics of matter that
you learned about freshman year. Understanding matter is essential to
understanding chemistry. This module will feature multimedia
presentations, an atomic model, and a forum discussion. Make sure that
each assignment is completed and turned in one week from the first day
of the trimester. Look at the calendar for the exact due dates.
After completing those assignments, you will take a formative quiz in
class. After turning in your formative quiz, you will receive feedback
and will be advised to either move ahead or redo the module. Remember,
the earlier you complete a module, the earlier you will be able take the
formative quiz and receive feedback.
View the media below and answer the questions that follow. An answer document will need to be retrieved:
I Can Statements
- I can describe energy changes associated with changes in matter.
Below is a power point presentation that reviews what you learned about matter. It also discusses the role heat (a form of energy) plays in the processes of melting, evaporation, freezing, and condensation. Focus on the role of energy.
1. Describe the role heat plays in turning a solid into a liquid and a liquid into a gas.
2. Describe the role heat plays in turning a liquid into a solid or a gas into a liquid.
3. If a pool of water freezes, what can we say about the change in energy experienced by molecules of water?
4. If a pool of water evaporates, what can we say about the change in energy experienced by the molecules of water?
5. Why do you think adding heat would turn a liquid into gas? (hint: how does heat change the particles)
I Can Statements
- I can describe the states of matter in terms of the motion and arrangement of it's particles.
- I can explain the position and arrangements of atoms in a molecule as to how it relates to the need to add heat to melt or boil a substance.
- I can explain the
position and arrangements of atoms in a molecule as to how it relates to
the need to release heat in order to have condensation or freezing.
Click on the simulation to test it out. Add and remove heat to note the changes in the particles' position and movement.
6. How does adding heat change the motion and arrangement of the particles?
7. How does lowering the temperature (removing heat) change the motion and arrangement of the particles?
8. Summarize the role thermal energy (heat) plays in states of matter.
9. Do all elements and compounds require the same amount of heat to melt? Defend your answer with evidence from the simulation.
I Can Statements
- I can describe the role of particles in conduction and explain why solids and liquids are better at conduction than gases.
10. In your own words, what is conduction?
11. Explain how the particles spread thermal energy (heat) through conduction.
12. Based on what we know about solids and gases, contrast the differences between them that make solids good conductors of heat and gases poor conductors of heat.
This work is licensed under a Creative Commons Attribution 3.0 Unported License
Original copyright: ©2012 Daniel McIlhenney