AMSTI Online Access

To access the AMSTI book, "Organisms from Macro to Micro", online:

follow the link under the "Helpful Links" section to the left of this post (or click here).

Student access code: AMSTIOMM in all caps.

New Unit - Genetics and Heredity!

We began our new unit on Genetics and Heredity today.  This information will be in Chapter 5, but we will also pull in information from LTF and AMSTI.

The students have been told to prepare for a little more homework and studying time during this interesting, but difficult, unit.

Egg Osmosis

The students have LOVED the egg osmosis experiment we have been monitoring each day.  Many have wanted to repeat the experiment at home.  It's very easy and you may already have the supplies on hand!

Here's how:

Supplies:   Eggs (uncooked), Vinegar, Water, and Corn Syrup (or other liquid)

1. Soak regular (uncooked) eggs in vinegar for about 2 days.  (This will dissolve the shell.)
2. You may need to gently run water over the egg to remove all of the shell.
3. At this point, you will have a bouncy, squishy egg!  (The egg is kept intact by the cell membrane.)

----Some of the students just wanted to play with the squishy egg, so some may stop here----

1. Soak one of the eggs in tap water for about one day.
2. Soak the other egg in corn syrup for the same amount of time (or you could experiment with other substances).
3. Observe the whether water has moved into or out of the eggs.
4. Switch the eggs.

Here are our eggs after soaking in water and corn syrup for 2 days. 

Here's a close-up of the corn syrup egg:

Ch. 4 - The Cell in Action

The Ch. 4 "The Cell in Action" test will be Tuesday, October 30th.

Cell Cycle

Cell Cycle

1.      Interphase – chromosomes are copied; the cell spends most of its time in this phase

2.      Mitosis

a.       Prophase - the chromosomes condense (become visible)

b.      Metaphase - chromosomes line up along center of the cell

c.       Anaphase- the centromeres split and chromosomes begin to separate

d.      Telophase - A nuclear envelope forms around each set of chromosomes

3.       Cytokinesis – division of the cytoplasm

Save Lids to Save Lives

Mrs. Smith will be collecting Pink Yoplait Yogurt Lids from now through December!

 For each lid collected, 10 cents will be donated to Komen for the Cure.  Additionally, 5 cents will be donated to the ZTA Foundation for College scholarships and additonaly breast cancer research and education. 

For more information:  https://savelidstosavelives.com/



Winning Homecoming Door Decoration!

Congratulations homeroom for winning the Homecoming Door Decoration Contest!

New Unit

We will start a new unit tomorrow discussing Ch. 4 in the textbook "The Cell in Action".  The unit will take approximately 3 weeks.

Next Test

The next test will be Tuesday, October 9th.  It will cover Characteristics of Living Things and Cells.

Pep Rally of the Week

Vote for Buckhorn High School - Pep Rally of the Week!

http://whnt.com/2012/09/28/vote-for-the-next-pep-rally-of-the-week/