Tuesday, October 17, 2017

9th grade VIDEO: The periodic table - classification of elements

Names of the Families of the Periodic Table of Elements.
1. Group 1: Alkali Metals
2. Group 2: Alkaline Earth Metals
3. Groups 3-12: Transition Metals
4. Group 13: Boron Family
5. Group 14: Carbon Family
6. Group 15: Nitrogen Family
7. Group 16: Oxygen Family
8. Group 17: Halogens
9. Group 18: Noble Gases
10. Elements 57-71: Lanthanides
11. Elements 89-103: Actinides
12. Metalloids: B, Si, Ge, As, Sb, Te

9TH GRADE VIDEO: Amplitude, Period, Frequency and Wavelength of Periodic Waves

9TH GRADE VIDEO: Introduction to Waves

Saturday, September 30, 2017

9th grade VIDEO: Introduction to the atom

9th grade: Test No. 1

Test No. 1
Unit 2, lessons 5 and 6
Review the “Engage your brain” sections, vocabulary terms, book activities, visual summaries and lesson reviews. Review the worksheets 8, 9 and 10.

VOCABULARY

Acid
Substance with a pH value below 7.
Atom
Basic building block of matter.
Base
Substance with a pH value greater than 7.
Colloid
Heterogeneous mixtures in which particles are not able to settle out.
Compound
Substance made up of different kinds of atoms chemically combined.
Element
Substance that is made up of a single kind of atom.
Elements and compounds
Pure substances.
Inorganic compound
Compound that does not contain carbon and hydrogen.
Metal
Elements that are shiny, conduct heat and electricity well.
Metalloid
Elements that have some properties of both metals and nonmetals.
Mixtures
Combination of substances that are combined physically but not chemically.
Neutral compound
Substance with a pH value of 7.
Nonmetal
Elements that are not shiny and do not conduct heat and electricity well.
Organic compound
Compound that contains carbon and hydrogen.
Solution
Homogeneous mixture.
Suspension
Heterogeneous mixtures in which particles can settle out.
Nucleus
Atom’s center.
Net charge
It equals zero in a neutral atom.
Electrons
Negatively-charged particles in the atom.
Atomic number
Number of protons in the nucleus of an atom.
Protons and neutrons
Particles found in the nucleus.
Neutrons
Particles in the atom that have no electrical charge.
Protons
Positively-charged particles within the atom.
Electron cloud
Region around the nucleus of an atom where electrons are likely to be found.
Mass number
Total number of protons and neutrons in an atom’s nucleus.





8th grade: Speeches, concept maps, lesson reviews and PowerPoint presentations

8th grade: Speeches, concept maps, lesson reviews and PowerPoint presentations
October 16 (8 D and 8 C) and October 17 (8 A and 8 B), 2017
Each group (8-9 students) will work on one of the topics provided below. The assignment will be divided into four parts:
·     Speech (2 or 3 students)
·     Concept maps (2 students). Use Cmap tools or another suitable software.
·     Lesson review (2 students)

Group
Lesson
Questions (Lesson Review)
1
8.1
1-9
2
8.2
1-8, 10
3
8.3
1-9
4
8.4
1-9

·     PowerPoint Slideshow (2 students)
The PowerPoint slideshow must be e-mailed to profjkernahanscience@gmail.com; in addition, you must bring a USB drive as a plan b. PowerPoint slideshow: without transitions or animations. File name: 8 X Name of the lesson
Number of slides: 12-15
·         Title slide
·         Three slides per student (for the speech)
·         Concept map (s)
·         Lesson review (three slides)
·         Final slide

Speeches assessment criteria (5 points each)                                                                                   
Presentation is delivered well, and enthusiasm is shown for topic                                   
Words are clearly pronounced and can easily be heard                                                                                       
Information is presented in a logical, interesting sequence that the audience can follow                           
Often makes eye contact with audience                                                                                                 
Stands straight, facing the audience                                                                                                      
Uses movements appropriate to the presentation; does not fidget                                                           
Covers the topic well in the time allowed (2 - 2½ minutes)                                                                       
Responsibility and punctuality.                                                                                                                                      

Lesson reviews assessment criteria

Written elements have correct grammar, spelling, capitalization, and punctuation (10 points)                                            
The lesson review is easy to read (appropriate font size; Arial 24 or similar) (5 points)                              
Answers (5 points each)                                                                                    
Responsibility and punctuality (10 points)                                                                                              

PowerPoint presentations assessment criteria (5 points each)

Topic is well researched, and essential information is presented (6 slides of contents for the speech)        
Contains all the required media elements, such as text and graphics                                           
Fonts and formatting are used appropriately to emphasize words; color is used appropriately to enhance the fonts.           
The presentation is easy to read (appropriate font size; Arial 24 or similar)                                               
Sequence of presentation is logical and/or the navigation is easy and understandable                                          
Artistic elements are appropriate and add to the overall presentation                                           
Written elements have correct grammar, spelling, capitalization, and punctuation                                     
Responsibility and punctuality.                                      

Concept map assessment criteria (5 points each)                                          
Well organized, logical format                                       
Responsibility and punctuality                                       
Contains main concepts                                   
Contains an appropriate number of concepts                                         
Follows standard map conventions                                            
Written elements have correct grammar, spelling, capitalization, and punctuation                                     
Links are precisely labeled                                            

The concept map is easy to read (appropriate font size; Arial 24 or similar)

Wednesday, September 27, 2017

8th grade: Test No. 1 (Wednesday, October 4, 2017)

Test No. 1 (8th grade; Wednesday, October 4, 2017)
Unit 6, lessons 4 and 5
Review the “Engage your brain” sections, vocabulary terms, book activities, visual summaries and lesson reviews.

Anticline
Folds that usually are high in the middle.
Compression stress
Stress that occurs when forces act to squeeze an object.
Continental drift
Hypothesis proposed by Alfred Wegener.
Convergent boundary
Boundary formed where two plates collide.
Deformation
Change in the shape of rock in response to stress.
Divergent boundary
Boundary formed where two plates move away.
Fault
Crack that forms when large blocks of rock break and move past each other.
Fault block
Blocks of rock on either side of the fault.
Fault plane
Location where two fault blocks meet together.
Fault-block mountains
Mountains formed when tension makes the lithosphere break into many normal faults.
Folded mountains
Mountains formed when rock layers are squeezed together and pushed upward.
Folding
Bending of rock layers due to stress.
Footwall
Fault block below the fault plane.
Hanging wall
Fault block above the fault plane.
Normal faults
Faults formed when rocks undergo tension stress.
Pangaea
Original supercontinent.
Plate tectonics
Theory that describes large-scale movements of Earth’s lithosphere.
Reverse faults
Faults formed when rocks undergo compression stress.
Rift zone
Area of deep cracks that forms between two tectonic plates that are pulling away from each other.
Sea-floor spreading
Process by which new ocean floor is formed.
Shear stress
Stress that occurs when forces act in parallel but opposite directions, pushing parts of a solid in opposite directions.
Slab pull
Most important factor that have been proposed to explain how tectonic plates move.
Stress
Amount of force per unit of area that is placed on an object.
Strike-slip faults
Faults formed when rocks undergo shear stress.
Syncline
Folds that usually are low in the middle.
Tectonic plates
Pieces the lithosphere is divided into.
Tension stress
Stress that occurs when forces act to stretch an object.
Transform boundary
Boundary formed where two plates move past each other horizontally.
Uplift
Process by which land rises or mountains form.
Volcanic mountains
Mountains formed when melted rock erupts onto Earth’s surface.