# Semester 1 Final Review-MIX

## INQA, INQB, INQC PS2A, PS2B, PS2C SYS1A PS1C

Physical ScienceChemistry

# Semester 1 Final Review-MIX

Created 3 years ago

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INQA, INQB, INQC PS2A, PS2B, PS2C SYS1A PS1C
Slide Content
1. ### Slide 1 - First Semester Final Exam Review

• 2014-2015
• Mr. Weisenfeld
• Get Ready to Take Notes!
2. ### Slide 2 - Inquiry A (INQA) Scientific Questions

• How does changing ___(MV)___ affect ___(RV)___?
• MV = Manipulated Variable (you change)
• RV=Responding Variable (you measure)
3. ### Slide 3 - INQA (Predictions)

• If I increase / decrease my ___(MV)___
• then my ___(RV)___ will increase / decrease
• because ______.
4. ### Slide 4 - INQB Scientific Procedures

• Gather materials
• (what, where)
• Label MV
• (how much, when)
• Keep CV
• (constant, not changing)
• Be Sure to Measure RV
• (how)
• Perform steps in order
• (write down all steps in detail)
• Record data in a table
• (a table helps organize info.)
• Repeat for reliability
5. ### Slide 5 - INQC Scientific Conclusions

• Repeat the Scientific Question
• Summarize Data
• “When the MV increased / decreased the RV increased / decreased…”
• “The largest value for the MV was…”
• And what the value of the RV was
• “The smallest value for the MV was…”
• And what the value of the RV was
• “Overall as the MV increased / decreased…”
• What did the RV do?
• “The scientific reason for this was…”
• Is there a bigger scientific model, or concept or law or equation that explains the data?
6. ### Slide 6 - SYS1A Systems and Feedback

• Inputs go into a system.
• Outputs go out of a system.
• An Equilibrium is a balance
• Static Equilibrium: no inputs, no outputs, system doesn’t change
• Dynamic Equilibrium: there are inputs, and outputs, and system stays in balance
• Feedback is a system output going back to system input
• Positive feedback (not good!) system gets out of control.
• Negative feedback (is good!) system calms down
7. ### Slide 7 - PS1C Energy

• There are different forms of energy
• Kinetic, Potential
• Mechanical, Chemical, Electrical
• Energy can be Transferred or Transformed
• If it doesn’t change form, it is transferred
• If it does change form it is transformed
• Potential Energy,
• is mass in kilograms
• is gravity,
• is height in meters
• Kinetic Energy,
• is mass in kilograms
• is velocity in meters/second (squared!)
• Conservation of Energy
• If energy is not lost to friction it is conserved
8. ### Slide 8 - Periodic Table: The Elements

• What is the name of this element?
• What is the symbol for this element?
• Atomic number?
• Atomic weight/mass?
• What group is this element in?
• What period is this element in?
• Is this element a
• Metal?
• Nonmetal?
• Metalloid?
9. ### Slide 10 - Isotope Symbol

• What element is this?
• How many protons does it have?
• How many neutrons?
• How many electrons?
• Is this an ion?
• Cation?
• Anion?
• Neutral?
• What is an isotope?
• Is this the common isotope for this element?
10. ### Slide 11

• Metals vs. Nonmetals vs. Metalloids
• Where are metals located on periodic table?
• Where are nonmetals located?
• Which tend to give up electrons?
• Which tend to grab electrons?
• What is the most reactive nonmetal?
• What is the most reactive metal?
• What are properties of metals?
• What are properties of nonmetals?
• What are properties of metalloids?
11. ### Slide 12 - Match Scientist to Contribution

• Antoine Lavoisier
• Niels Bohr
• J.J. Thomson
• Ernest Rutherford
• Erwin Schrödinger
• Democritus
• John Dalton
• Gold-foil experiment, positive nucleus
• Discovered the neutron
• Atoms are small & indestructible
• Discovered the electron
• Proposed Law of Conservation of Mass
• All substances are made of atoms
• Electrons can jump between paths
• Electrons form clouds around nucleus
12. ### Slide 13 - Protons, Neutrons and Electrons

• Which subatomic particle has
• Negative charge?
• Positive charge?
• Neutral charge?
• Which particle has
• A lot of mass?
• Very little mass?
• Which particle is in the nucleus?
• Which particle is outside the nucleus?
13. ### Slide 14 - Draw An Atom

• Draw a picture of this atom.
• How many protons? Where are they? What is their charge?
• How many neutrons? Where are they? What is their charge?
• How many electrons? Where are they? What is their charge?
14. ### Slide 15 - Valence Electrons

• Electrons are organized in shells.
• The outermost electrons are involved in reactions.
• Elements want to have 8 outermost electrons (8 is great).
• Metals tend to give up electrons.
• Nonmetals tend to take electrons.
• How many electrons are in the outermost shell depends on the group an element is in.
• Group 1
• 1 Valence Electron
• Group 2
• Group 13
• 2 Valence Electrons
• 3 Valence Electrons
• Group 14
• 4 Valence
• Electrons
• Group 15
• 5 Valence
• Electrons
• 6 Valence
• Electrons
• Group 16
• Group 17
• 7 Valence
• Electrons
• Group 18
• 8 Valence
• Electrons