Homeostasis

Human temperature: 98.6 degrees Farenheit
Human pH: 7.4
% water: 55%
%salt: 0.9%

keeping these at a constant level keeps your body functioning.

HOMEOSTASIS
big word.
that keeps you alive.
all of your cells need oxygen, a consistent temperature, a way to remove waste, a way to get energy.... your body has many ways of keeping it's internal environment constant.

Our CO2 Lab was one example of a homeostasis system.  When you exercised, your cells needed more energy.  That burning of energy requires oxygen, so, your heart rate increased to keep up with the demand.  Your body uses glucose + oxygen to get energy and carbon dioxide through respiration.

Respiration & CO2 Lab

Respiration and CO2 LAB
all of this was done in class.
if you were in class, you should not have an 'outside of class' write up.
if you were absent for the data collection, you need to plan a time to make this lab up.

MORE ON RESPIRATION (bitesize at BBC)

Adaptations in leaves

plants are adapted to their climate- leaf structures can prevent evaporation, help a plant float, provide rigid structures for water or height, move and arrange pigments for photosynthesis.  We will do a 1day exploration of these structures.

 engineering a leaf 3 minute video of someone engineering a leaf

 4 example plants slide show  More images to help you answer the hand out below.

Paper-based 'lab' pages 9-14 in this hand out.  Due at the end of class, 11/14

Elements! Atoms!

It's Elemental math game.

The World's Smallest Movie: A boy and his atom by IBM

How was it made? 

oxygen atom

FOLDABLE: atoms, electrons and molecules

A periodic table with valence electrons is here.
And an Oxygen Atom.















If you did not get the rest in class, please use the images from this file to recopy this into YOUR logbook.

Here's Bill Nye's explanation.

Scales of the Universe

Scale of the Universe Interactive demo
Link to online demo HERE.

Homework table to be completed by you using this Interactive Demo can be found HERE.

It's OK to look up 'trillion' in scientific notation and vice versa if you're unfamiliar with these terms.

DUE Monday, 11/14

Google Earth: Australia plots

Today- look at several plots- try to find some from different looking areas.
1. open google Earth.
2. download this KMZ file.
3. open this KMZ file.

AUSTRALIA PLOTS KMZ file

How hard is it to count the trees?
How many plots would you consider 'reasonable' for one lab team to count?
How many times do you think each plot should be counted? Why?