Static Electricity Notes

 We will have an intro to static electricity. Read the chapter on Static Electricity and make a list of all your vocab words.   Here's an interactive Static Charge simulator:Click on picture and try it out:

Notes on Static Electricity including the nature of atoms, and how to make static charges by friction, induction and conduction

A quiz on electric charges.

Human Reproduction Notes

notes download here .  Research answers in the library.

Information on sexually transmitted diseases here
Some illustrations of common sexually transmitted diseases here

Sexually transmitted diseases may be prevented with a condom during sexual intercourse.  But a condom does not prevent transmission through skin to skin contact and oral contact (kissing).
Proper use of a condom here.

Human Reproduction

Female system:
 Male system and fertilization Development and birth

Notes

Test next tuesday on 6.1 and 6.2

Today we went over the 6.2 questions.  next period we will finish the questions and review the steps of meiosis.  Next tuesday there is a test on 6.2 as well as steps for meiosis

The evolutionary history of sexual reproduction AND 6.2 vocab

SECTION 6.2
in the last few lessons, we went over all the vocabulary of section 6.2 in the textbook.  You ought to know this vocab for our next test/quiz. I did a HOMEWORK CHECK of

1.VOCAB WORDS COMPLETED
2. LAB DRAWINGS COMPLETED AND LABELED
2.  ALL QUESTIONS FINISHED PAGE 223

For a lab, we observed and made drawings of:
a flower and its reproductive parts
A blastula and gastrula
a preprepared slide from "northwest" laboratories of human sperm


EVOLUTION OF SEXUAL REPRODUCTION
We also went outside to observe the morphology of plants and their parts for sexual reproduction.  Plants engage in external fertilization.  And, early in evolutionary history, plants required water for sexual reproduction. In particular, we observed that the evolution of plants on land occurred in this order:
marine protozoa which photosynthesize (algae) - use egg and sperm as gametes
mosses and other bryophytes - egg and sperm
Ferns - egg and sperm
Horsetails - egg and sperm
Gymnosperms (ex. conifers) - wind pollination
Angiosperms (ex. flowering plants) -wind pollination and vector pollination

Examples include the stellar magnolia (Magnolia stellata) which is one of the first ever vector pollinators

We reflected that animal evolution took a different pathway: animals chose to keep the swimming male gamete, the sperm, and thus, internal fertilization is the usual case for terrestrial animals.  Internal fertilization requires the organisms to meet in space and time.  Thus, animals are characterized by courtship behaviours