12th grade – APRIL 13, 2016 *all late/makeup work must be completed before April 29 for credit.Math tests are MONDAYSScience tests are FRIDAYSQuizzes are any days TESTS may need to be moved if we are not quite ready…but that is the exception.You need to check the weebly every night BEFORE you start your HW!!!!!

PHYSICAL SCIENCE

**TAKE NOTES IN YOUR SCIENCE SPIRAL

**Callie the Cow!

Ch 25 = Rocks & Minerals = videos (ch 20 online)

TODAY = 4/13 = Ch 25 RQ 1-10 = REVIEW QUESTIONS

1. How did density segregation contribute to Earth’s internal layers?

As heavy materials moved toward Earth’s center and lighter materials moved toward the surface, Earth’s interior became layered according to density.

2. What is the most abundant element for Earth as a whole?

As a whole, the Earth is 33% iron.

3. What is the most abundant element in Earth’s crust? What is the second most abundant element?

Oxygen is the most abundant element in Earth’s crust (46.60 47% by mass). The second most abundant element in Earth’s crust is silicon (27.72 28% by mass).

4. What is a mineral?

A mineral is a naturally formed, inorganic, crystalline solid composed of an ordered arrangement of atoms with a specific chemical composition.

5. What physical properties are used to identify minerals?

The physical properties used to identify minerals include crystal form, hardness, cleavage and fracture, color, density, luster and streak.

6. Most mineral samples do not display their crystal forms. Why not?

Well-shaped crystals are rare in nature because minerals typically grow in cramped spaces.

7. Why is color not always the best way to identify a mineral?

Chemical impurities affect color. Many minerals come in multiple colors.

8. What is the difference between a silicate mineral and a nonsilicate mineral?

Silicate minerals contain both silicon and oxygen as part of their chemical composition. Minerals that do not contain these two elements are called nonsilicates.

9. What is the most abundant mineral in Earth’s crust? What is the second most abundant mineral?

Feldspars are the most common and abundant minerals. Quartz is the second most common mineral.

10. What is the process of crystallization?

Crystallization is the growth of a solid from a liquid or gas whose atoms come together with a specific chemical composition and crystalline arrangement. Beginning with the formation of a single microscopic crystal, the crystal grows as more and more atoms bond to the crystal faces.

================================================http://www.conceptualacademy.com/textbook/conceptual-physical-science

I HAVE SOME HW 4 U 4/11/16 = 12 items from our class today … textbook ch 25 (ch 20 videos) … a sentence or two from the video/book on each one…not from anywhere else.4/12/16 = ch 25 rq 1-10 complete answers = either write the question then the answer – or – write a complete answer that restates the question…else 0 credit.4/13/16 = ch 25 rq 11-20 complete answers ^Test is Friday = word bank not open notes so you must study the questions and answers.

PreCalculus

Glogs due Monday…ELSE = 0…BEGINNING MARCH 14, 2016.

HW WAS: chapter 6 – do in spiral – p.464 do # 3-14 … SAW … AW. Start now…finish tonight 4/12=NAME+NBQUIZ+P.464+DATE ANSWERS ONLY TO 3-14 – GO.

Remember – FOR ALL CLASSES – to note every 30 minutes!!!option 1 = do 30 min on each class hw - start with math - then you must move on to another class…then come back if you need to…option 2 = there is no option 2.YOU NEED TO SET A TIMER FOR 30 MIN.

MONDAY = TEST DAY

PRECALC = 4/12

CSC, COT, SEC ON YOUR CALC:

CSC = 1/SINCOT = 1/TANSEC = 1/COSYOU MUST KNOW HOW TO DO THIS!SO … PUT IN “1” THEN “÷” THEN “SIN 31.67” THEN ENTER…OR…use the x-1 key …1=on2=clear3=degree mode

p.4641. 2. 3. 4. 7/√655. 6. 7/4 7. 8. √65/49. 10. h ≈ 20.9811. 3 answers12. m<A = 55◦ ; b ≈ 14.6 ; c ≈ 8.413. 3 answers14. m<A = 45◦ ; m<C = 45◦ ; b = 3√2 ≈ 4.24

so

19 answers so = -5 each

Ok picture from the board:

Homework Precalc = calc = p.465 # 31-42Hw changed to:Page 483 # 1-10 … use desmos !!!1. graph the sin of t from 2∏ to 6∏SoDoThis…print or do by hand…tape into spiral.

======================================OTHER 12 th grade HW IS LISTED BELOW: 6 FLAGS FORM = Michael, LewisLIT = LONE RANGER & TONTO = READ CH & GIVE RESPONSE ON WEEBLY TONIGHT

US HISTORY = read ch 23 &

Travis & Rakayla = review notes cw etc. test 22

RELIGION = pray & rice box

ECON = STUDY ch 3 weebly notes & VOCAB … test coming 4/14 = tomorrow

Spanish – 2 verbs

SEE ABOVE FILE FOR MATH AND SCIENCE!!!

MATEO SAYS: DO ALL OF YOUR HW AND DO IT WELL!!!