Download Ammonites are named after the Egyptian god Ammon, who is often

Ammon
Ammonites
Ammonites are named after the Egyptian god Ammon, who is often depicted with rams' horns behind each ear. Ammonites were predatory, squidlike creatures that lived inside coil­shaped shells. Like other cephalopods, ammonites had sharp, beaklike jaws inside a ring of tentacles that extended from their shells to snare prey. They were three feet long (half the size of man) and are now extinct. http://www.bbc.co.uk/news/science­environment­12127790
http://animals.nationalgeographic.com/animals/prehistoric/ammonites.html
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Biology
Tuesday/Wednesday, October 16/17
1. Organism of the Day: Ammonites (5)
2. Turn in Gender Study (5)
3. Review Lecture (10)
4. Review Activity (5)
5. Video (60)
6. Review Unit 1 Test (20)
Announcements
Collect Period 5 Notes and compounds building activity.
Due Thursday/Friday: None!
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Collect Gender Study
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Review Lecture
Example of a molecule
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I. Matter
SPACE AND HAS MASS
A. Definition: Anything that occupies _____________________________
B. Described by:
1. PHYSICAL PROPERTIES
_____________________ ­ Characteristics you can observe CHEMICAL
withoutchanging the ____________ composition of the matter.
a. Measured by: Volume
Mass
DENSITY
2. Physical state­ gas, solid, liquid
Examples ­ size, shape, texture
3. Chemical properties ­ characteristics of matter that allow it to change SUBSTANCES
into new _____________________
Examples­ ability to burn, decompose
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C. Made of a combination of about __________ known elements
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II. Elements
BROKEN DOWN
A. Definition ­ Substances that cannot be _____________________ BY CHEMICAL PROCESSES
___________________ into simpler substances.
IRON (FE) AND HYDROGEN (H)
B. Examples ­ ___________________________
III. Atoms SMALLEST
A. Definition ­ The _____________ units of matter that retain the properties of the elements.
ATOMS
B. ________ are composed of:
PROTONS
1. _______________­ particles with a relatively large mass and A POSITIVE CHARGE
________________________.
NEUTRONS
2. _______________­ particles with relatively large mass and NO CHARGE
_____________________.
ELECTRONS
3. _______________­ particles with a small mass and A NEGATIVE CHARGE
_______________________.
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C. Atomic and Mass Numbers
PROTONS
Atomic Number = # of ______________
Mass Number = # of _______________________
PROTONS & NEUTRONS
D. Most electrically­stable atoms have an equal number of protons and electrons.
*Otherwise, they are known as ________________ (Example­ ___ and ___)
IONS
Na+
Cl­
SHELLS
E. Energy levels or _____________ are the regions in which the electrons move.
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use the periodic table of the elements to complete it.
Assume no charge for the atoms below
Atomic Symbol
Atomic Number C Protons 6 Neutrons Electrons Atomic Mass 6 N 22.9 11 8 8 26 Challenge
Row!
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ATOMS
IV. Compounds ­ two or more ______ linked chemically in specific FORMULA
combinations symbolized by a chemical ___________
C6 H12 O6
1. Examples ­ Salt (NaCl) and Glucose (_______) and Water H20
(_______)
2. Biologically significant compounds:
WATER
a) Living things are composed mostly of ________
b) 97% of compounds in organisms are made of the following elements ____, ____, ____, ____, ____, and ___
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Types of Chemical Bonds
1. Intramolecular Bonds: electron ______________________________.
Valence electrons: electrons in ___________________________________.
Examples:
a. Ionic Bonds: 1 atom "________" the electrons from the other atom Example: b. Polar Covalent Bonds: Electrons are ______________________.
Example: c. Non­Polar Covalent Bonds: Electrons are _________________.
Example:
Stop
2. Intermolecular Bonds: _______________________________________________
a. Polar Interactions: Occurs between _______________________________.
Example:
b. Hydrogen Bonds: Occurs when _____________________________________.
Example:
c. van der Waal/London Dispersion forces: Occurs __________________________ ________________________.
Example:
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Review Activity
Label Your Molecules!
Water (H2O)
Methanol (CH3OH)
Oxygen Gas (O2)
Glycerol (C3H8O3) Propane C 3H8
CHALLENGE
Amino Acid Alanine (C3H7O2N)
(for help see pg. 39 in textbook)
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Video ­ Venom http://video.pbs.org/video/1811431815/
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Review Unit 1 Test
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Exit Question:
What type of molecule is snake venom? ­protein
­carbohydrate ­lipid
­nucleic acid
Reminder:
Due Thursday/Friday: No Homework:)
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