EdExceL SCIENCE ANSWER KEY

For the last handout:

1.  C
2.  B
3.  B
4.  B
5.  C
6.  B
7.  B
8.  C
9.  B
10.  D
11.  (a)  It gives shape.  (b)  It supports the body.  (c)  It protects organs inside the body.
12.  iron & sand - use a magnet, stones & sand - use a seive, sand & water - filtration, salt & water - evaporation
13.  Advantage:  It doesn't give off harmful emmissiona and readily availbale
       Disadvantage:  It is expensive and not easy to replace gasoline.
14.  (a)  water resistance  (b)  streamlined, faster (counter react the water resistance)
15.  C
16.  D
17.  A
18.  B
19.  C
20.  A
21.  B
22.  A
23.  A
24.  C
25.  (a)  asexual rreproduction  (b)  Only one parent plant is required.  Young plants are identical to the parents.  (good traits are always passed on)
26.  (a)  Metal R - Metal S  - Metal P - Metal Q
       (b)  copper + iron sulfate
27.  (a)  Artificial satellite are man made satellite and launch into the orbit by using rockets.
       (b)  It is used in scientific research & to study universe.
28.  C
29.  D
30.  A
31.  B
32.  B
33.  C
34.  D ( 39 - 84) Period - horizontal & Group - vertical
35.  C
36.  B
37.  D
38.  As the intensity of the light is increasing, there will be a point that the rate of photosynthesis will be constant after a certain point is already reached.
39.  (left to right/ top to bottom)
       (a)  FF     Ff
              Ff     ff
       (b)  ff (cystic fibrosis)
40.  (a)  100 g
       (b)  For a complete reaction, calcium chloride, hydrogen gas & carbon dioxide should be produced.  In this case, water is produced instead.  even if, the mass should still be 100 g.  If there will be losses in the reaction, it is possible that the reaction does not follo Law of Conservation of Mass such exampple is escape of gas or spillage of the sample.
41.  (a) & (b) - See picture.
       (c)  Moment of force = F X d = (5 N) (0.2 m) = 1 N-m
42.  (a)  Use 1 grdaient = 2 cm
       (b)  i.  See picture.
              ii.  Before disregarding, run another trial.
       (c)  i.  See picture.
              ii.  By using the projected line, the change in length for 100 g is 36 cm.
43.  (a)  Use goggles, gloves & labcoat.  Handle acid with care.
       (b)  The bigger the surface are, the longer the time it will react.
       (c)  If diluted acid will be used, it will slow down the reaction time.
44.  (a)  To know the effect of the different proportion of N, P, K in plant growth.
       (b)  The fertilizer that will produce the most pepper is fertilizer B (low in N & high in P & K)
       (c)  same condition (same amout of water & fertilizer)  & same location (sunlight)
       (d)  i.  amount of fertilizer
              ii.  plant growth
       (e)  That plant will serve as the CONTROL variable where all samples will be compared to.
         


God bless in your EdExceL examination.

GRADE 7 & 8: ATTENTION!!! VERY IMPORTANT!

The Final Test includes everything from Quarter 1 to Quarter 4 (Q1 - Q3: 20% each & Q4: 40%).  Please review your quizzes and quarter test.   Please do not forget to bring calculator.

PHYSICS 7:
Q1: Measurement (SigFig, SciNot, SI vs. English System, Base & Derived Calculation)
Q2:  Measurement (Density & Temperature Calculations)
Q3:  Thermal Expansion
Q4:  Linear Motion & Electric Circuit (See Answer Key to Chapter Test pages 464 - 472)

CHEMISTRY 7:
Q1:  Matter (States, Properties & Changes)
Q2:  Matter (Classification & Separating Techniques)
Q3:  Acids & Bases
Q4:  Atomic Development

PHYSICS 8:
Q1:  Forces & Newton's Law of Motion
Q2:  Work, Energy and Power & Simple Machines
Q3:  Pressure in Solids & Liquids
Q4:  Vibrations & Waves & Sound & Light

CHEMISTRY 8:  already in the letter sent


In short, ALL WILL BE PART OF THE TEST.  I explained this to the class and we even reviewed.


My sincerest apology.  Thank you.  God bless.

Grade 8 ANNOUNCEMENTS & REMINDERS

Dear Students:

Good day!  How's vacation?  Hope you are enjoying your happy days. Please be reminded of the following:


*  CHEMISTRY:
    -  Everyone is encouraged to submit the add on points requirement most esp. for the students with grade below 65.  For students above 65 may still submit.  You may choose any of the topics below.  Specific topic will be given to the required people to submit.  
Topics:  
1.  Grand Canyon, America
2.  Tanah Lot, Indonesia
3.  Wave Rock of Perth, Australia
4.  Chocolate Hills, Philippines
5.  Uluru, Australia
6.  Niagra Falls, Canada
7. Devils Marble Karlu Karlu, Australia
8.  Jabel Akakus, Libya
What to include?
1.  Location
2.  History (How it is formed?)
3.  Geology (Rock Type & How it is formed?)
4.  Pictures
5.  References (Complete URL)
Format:  Computerized, A4 paper, 1" all sides margin
Submission:  May 25 - 26, 2016 (W - Th)
    -  Please see the powerpoint presentations of Chemical Reaction & Rocks & Rock Cycle.
    -  These are the people required to submit.  See topics below.
        Daniel:  Belinda - 1, Fareza - 2, Gaby A. - 3, Jose - 4, Olive - 5, Kevin - 6, Stephan - 7 & Gab F.         - 8
        Ezekiel:  Bagus - 1, Rio - 2, Stephanie - 3, Steven - 4
        Samuel:  Dennis - 5, Andrea - 6, Defista - 7, Hanny - 8, Randy - 1, Stanley - 2, Olsen - 3
     -  Make Up Quiz:  Brian Jo & Olsen (May 15to 17 only!)  --- OK already!


*  PHYSICS:
    -  Please see powerpoint presentation of Vibration & Waves, Sound, & Light & Optics.
    -  May 19 (Th):  Quiz No 2 - Mirror:  Concepts, Calculations, & Practical Application and Lenses:
       Concepts &  Practical Application
    -  May 17 (T):  Submission of Physics Experiment:  Sound Reflection
    -  May 25 (W):  Add On Quiz - Lenses:  Calculations & Optical Instrument:  Eye
       Add On Quiz:  Read pp. 456 - 464.  Answer in 1 A4 paper.   This will be submitted on May 23
      (T) under Ms. Czhar. (Ms. Popy will announce the date of submission for her students.)
       A.  Self Assessment 10.1, numbers 1-4
       B.  A 4.00 cm tall object is placed a distance of 7.30 cm from a double convex lens having a
            focal length of 14.2 cm.  Determine the image distance and the image size.  Draw image
            formation.  Determine the nature of the image.
    -  No Exercise:
       Ezekiel:  Stephanie - 41 pts., Tania - 8 pts.
       Samuel:  Olsen - 10 pts., Sam - 6 pts. (depth)
    -  Failed To Do Exercise:  SONAR TECHNIQUE (For Ezekiel & Daniel only!)
       *  Write your GUS in 1/2 crosswise paper.  Please submit on May 17 (T).

           1.  A ship emitted the wave to the sea by oscillator and received the reflection of the 

         wave  after 4/5 s.  If the velocity of the sound in the sea water is 1500 m/s, find 

         the depth of the sea.
      2.  The oscillator vibration in a ship is received by hydrophone after 0.5 s if the      
         depth of the  is 280 m, find the velocity of the sound in the sea.
      3.  If the velocity of the sound in the sea water is 1500 m/s, and the depth of the sea is          3000 m, the reflection of the sound in the sea surface will be heard after _____ s?

     -  Reviewer in LENSES:  Exercise, Exercise1 & Exercise 2.
God bless.   Enjoy!  :) :) :)
   

RE: URGENT!!! EBEN OF MICAH

Good day!

To all who will read this, kindly inform Eben to take a picture of Physics Quarter 2 Test in Physics from first page to the last page and send to my email address: cgbuaquena629@yahoo.com.  I will be waiting tonight.  Thanks so much.

Kindly bring the actual paper tom.  Thank you. God bless.

RE: Grade 8 Announcements

Dear Students:


Good day!  Please study all concepts, calculations, and practical applications in both Physics & Chemistry.  Kindly bring your scientific calculator.  NO BORROWING OF CALCULATOR.  Please see REVIEW.


Study hard.  God bless.

Grade 7 Announcements

Good day!

Review everything in Quarter 3 lessons.  Memorize the formulas both in Physics and Chemistry.  Kindly bring your scientific calculator.  NO BORROWING OF SCIENTIFIC CALCULATOR.  Study all concepts, calculations and practical application.  All papers were returned already except for experiments. Use them for review.  Use your book also.


LAST CALL:

No CHEMISTRY lab report:
*  AMOS - Wina, Dennis, Eivy, Arya, Vincent, Anya, Angel
*  MICAH - Albert, Richard, Tannia, Dimas
*  RUTH - Jovan


No PHYSICS lab report:  TO FOLLOW (I haven't checked.)


Study hard.  Hard work pays off.  God bless.

RE: GRADE 8 PHYSICS EXPERIMENT

Dear Students:

Good day!  Make sure tom. you have your materials.  Failure to bring I will give zero.  Lab Performance will be graded.   Make sure also you read about designing boats.  See the reference in the experiment paper or you may get other sources.

IV. Materials/ Equipment

ball ohf plasticine  or Play Doh (around 4 cm round)

large bowl

water

paper towel

                                                                                    

V.  Procedure

     1.  Pour water into a large bowl, dishpan or sink to about 8 cm deep.

     2.  Place the plasticine ball on the water.

     3.  Remove the ball and wipe it dry.

     4.  Using all of the plasticine, design your own boat that will float.

     5.  Place the boat that you designed on the water.

Thank you.  God bless.

Grade 8 PHYSICS Experiment

Dear Students:

Good day!  Make sure tom. you have your materials.  Failure to bring I will give zero.  Lab Performance will be graded.   Make sure also you read about designing boats.  See the reference in the experiment paper or you may get other sources.

IV. Materials/ Equipment

ball ohf plasticine  or Play Doh (around 4 cm round)

large bowl

water

paper towel

                                                                                    

V.  Procedure

     1.  Pour water into a large bowl, dishpan or sink to about 8 cm deep.

     2.  Place the plasticine ball on the water.

     3.  Remove the ball and wipe it dry.

     4.  Using all of the plasticine, design your own boat that will float.

     5.  Place the boat that you designed on the water.

Thank you.  God bless.

Re: CHEMISTRY 8 No Exercise

God day!  Please see Slide 1-4 of Periodic Table powerpoint and answer the questions in 1/2 CW to be submitted on Feb 15 (M)


See old post for Periodic Table powerpoint.

Grade 7 PHYSICS PAIR WORK

NO WORK:

Amos - Complete except eivy
Micah - Nicole & Dimas
Ruth - Bagas & Andro
Zeph - Diva & Michelle

Please submit Wednesday morning!  I will not accept if in the afternoon.  This is supposed to be submitted on the day itself which was Feb. 5 (F).

Grade 8 CHEMISTRY & PHYSICS ANNOUNCEMENTS & REMINDERS

Dear Students:


Good day!  Happy Chinese New Year!  Please be guided of the following:

CHEMISTRY
*  Feb. 10 (W) - Lesson on Chemical Reaction
*  Feb. 17 (W) -  Experiment on Element & Compounds
    Bring 1 laptap with inteernet connection.  Work inside classroom only.  Each group will choose 1
    element and 1 compound.  The following should be included in the research:
    1.  Sources
    2.  Uses
    3.  Advantages & Disadvantages
    4.  Chemical Reactions (Type of Reaction)
    5.  Practical Application
    *   Add On:  TRIVIA/ PICTURES
    Don't submit copy & paste work.  I want summary version which has content.  Don't submit crap
    work.  I will not accept it.  RESEARCH on it!  LEVEL UP in your work!
    Format:
    Computerized, Font Size: 12, Font Type: Any as long as readable, Margin: 1" all sides, Title Page      (with group members' names)
*  Feb. 22 (W) - Submission of Experiment & Oral Presentation
    Prepare powerpoint.  Be ready for Q & A portion.  NO LATE SUBMISSION.


PHYSICS
* Feb. 10 (W) & 11 (Th) - Review for Quiz No. 2
* Feb. 16 (T) - Experiment No. 1 - The Boat That Float (Buoyancy)/ Submission of Self Assessment
   6.10, p. 274 (Pairwork) (Daniel & Ezekiel)
   Bring all materials needed.  This will be graded as lab performance.
*  Feb. 17 (W) - Quiz No. 2 - Communicating Vessel, Archimedes' Principle & Buoyancy
     (Samuel)
    Study concepts, calculations & practical application. Pls. bring scientific calculator.  NO
    BORROWING OF CALCULATOR.
*  Feb. 18 (Th) - Quiz No. 2 - Communicating Vessel, Archimedes' Principle & Buoyancy/  
    Study concepts, calculations & practical application. Pls. bring scientific calculator.  NO
    BORROWING OF CALCULATOR.
*  Feb. 23 (T) - Oral Presentation/  Submission of Lab Report
    All groups will present the assigned part of the experiment:
    Group 1 - Conclusion
    Group 2 - Practical Application
    Group 3 - Data & Results
    Group 4 - Answers to Guide Questions
    Group 5 - Analysis of Data

Wait for further announcements for the review lessons.  I will manage my schedule between Grade 7 & 8.  This is your new laboratory groupings.  Wasti please take make up Quiz No. 1 (Chem) on Feb. 10 (W) dismissal time.  See me faculty.

Grade 7 CHEMISTRY & PHYSICS ANNNOUNCEMENTS/ REMINDERS

Dear Students:

Good day!  Happy Chinese New Year!  Please be guided of the following:

CHEMISTRY

*  Feb. 11 (Th) -  Quiz No. 1 - Acids, Bases, & pH  (Amos, Micah, & Ruth)
    Review Acids, Bases, & pH Concepts, Acids & Bases Theories, Strength of Acids & Bases, pH
    Calculations & Practical Application.  Kindly bring scientific calculator.  NO BORROWING OF 
    CALCULATOR.
*  Feb. 11 (Th) - Expt. No. 1 - Acids, Bases & pH (Zeph only!)
    Bring labcoat and plastic envelope with cleaning materials.  If not finished, continuation of the    
    experiment dismissal time.  Please ask permission.
 * Feb. 15 (M) -  Quiz No. 1 - Acids, Bases, & pH  (Zeph because Thursday full of Quizzes)
    Review Acids, Bases, & pH Concepts, Acids & Bases Theories, Strength of Acids & Bases, pH
    Calculations & Practical Application.  Kindly bring scientific calculator.  NO BORROWING OF 
    CALCULATOR.
 * Feb. 15 (M) - Expt. No. 1 - Acids, Bases & pH (Amos, Micah & Ruth)
    Bring labcoat and plastic envelope with cleaning materials.
* Feb. 16 (T) - Continuation of Expt. No. 1 - Acids, Bases & pH (Amos)
   This will be held dismissal time.  Please ask permission from parents.  No other time to finish the
   experiment.   Bring labcoat and plastic envelope with cleaning materials.
* Feb. 17 (W) - Continuation of Expt. No. 1 - Acids, Bases & pH (Micah)
   This will be held dismissal time.  Please ask permission from parents.  No other time to finish the
   experiment.   Bring labcoat and plastic envelope with cleaning materials.
* Feb. 18 (Th) - Continuation of Expt. No. 1 - Acids, Bases & pH (Ruth)
   This will be held dismissal time.  Please ask permission from parents.  No other time to finish the
    experiment.  Bring labcoat and plastic envelope with cleaning materials.
*  Feb. 18 (Th) - Submission of Experiment No. 1 - Acids, Bases & pH (Zeph)    --- lab report
*  Feb. 22 (M) - Oral Presentation/ Submission of Experiment No. 1 - Acids, Bases & pH (Amos, 
    Ruth, & Micah)
    Prepare powerpoint of your assigned part of the experiment.  Assignment:
    Group 1 - Conclusion
    Group 2 - Practical Application
    Group 3 - Data & Results
    Group 4 - Answers to Guide Questions
    Group 5 - Analysis of Data


PHYSICS

* Feb. 10 (W) - Quiz No. 1 - Thermal Expansion (Ruth only!)
    Review Heat, Energy, & Temperature Concepts, Heat Transfer Concept, Thermal Expansion
    Concept, Linear Expansion Calculations & Temperature Conversion Calculations (deg C, deg F, &     K) & Practical Application.  Kindly bring scientific calculator.  NO BORROWING OF 
   CALCULATOR.
    Here are the formulas:
    1.  C = 5/9(F-32)
    2.  F = 9/5C + 32
    3.  K = C + 273
         C = K - 273
*  Feb. 12 (F) - Quiz No. 1 - Thermal Expansion (Amos, Micah, & Zeph)
    Review Heat, Energy, & Temperature Concepts, Heat Transfer Concept, Thermal Expansion
    Concept, Linear Expansion Calculations & Temperature Conversion Calculations (deg C, deg F, &     K) & Practical Application.  Kindly bring scientific calculator.  NO BORROWING OF 
   CALCULATOR.
*  Feb. 17 (W) - Expt. No. 1 - Thermal Expansion of Liquids & Gases (Ruth)
    Kindly bring labcoat and plastic envelope with cleaning materials.
*  Feb. 18 (Th)  - Expt. No. 1 - Thermal Expansion of Liquids & Gases (Amos, Micah, & Zeph)
    Kindly bring labcoat and plastic envelope with cleaning materials.
*  Feb. 24 (W) - Review for Quarter Test & Start of Oral Presentation (Ruth)
*  Feb. 25 (Th) - Oral Presentation/  Submission of Expt. No. 1 - Thermal Expansion of Liquids & 
    Gases (Amos, Micah, Ruth & Zeph)
    Prepare powerpoint of your assigned part of the experiment.  Assignment:
    Group 1 - Conclusion
    Group 2 - Practical Application
    Group 3 - Data & Results
    Group 4 - Answers to Guide Questions
    Group 5 - Analysis of Data
*  Feb. 26 (F) - Review for Quarter Test & Cont. of Oral Presentation

All notes are uploaded already.  See old post.  Here is the new laboratory groupings.

Grade 8 PHYSICS NOTES

Dear Students:

Good day!   I will upload the complete one.  Please see PRESSURE notes.  Study Pressure in Solids, Liquids & Gases + Pascal's Law.  Bring scientific calculator.  NO BORROWING.

Grade 8 CHEMISTRY NOTES

Dear Students:

Good day!  Please see:  ELEMENTS, COMPOUNDS, & CHEMICAL REACTION, 

CHEMICAL REACTIONS, and

PERIODIC TABLE notes.


Study well.  Study the common elements as well  as their practical application.

Grade 7 PHYSICS NOTES

Dear Students:

Good day!  Please see THERMAL EXPANSION for your notes.  Study well for your quiz.  Bring calculator.

Grade 7 CHEMISTRY NOTES

Dear Students:


Good day!  You may use the powerpoints for advance reading:  Acids and Bases_2 and Acids and Bases_1.