Spacetime line

Apollo Timeline on Dipity.

Astronomy

Childhood Obesity

Joints

Watch This

Cell Videos

Cell structure

Copy these notes in your book, answering questions.





A Cell is Bag of life, that makes copies of itself.

Describe what a cell would look and feel like if it where the size of a tennis ball.



What instrument do you need to see most cells?_____________________





This is an artist impression of a AIDS virus. Sketch this in you book. What do you need with all sketches to tell people about the size of what they are looking at? What do you think is happening in this picture.

Use the scale in this link to find the length of a Cholera germ. What kind of microscope was this pictured with.



Sketch an cell as you would see under a microscope
- use pencil
- half a page
- dashed circular line shows limit of field of view
- include a scale
- include a title
- label parts and include a legend

On completion show the teacher for marking.


Note this in your book




Prokaryotic - Cell like bacteria primative

Eukaryotic - Cell with organelles inside

Give a few examples of each


What is an organelle? _________________________


Some organelles are cut down copies of simple Prokaryotic Cells, How do you think this happened? ______________________





All cells use DNA (Deoxyribonucleic acid ) to store information used by the cell to make the parts of the cell that the cell needs.

Look at this video and describe what you see.

The nucleus stores the DNA so it can be read to make parts for the cell, but the nucleus wall dissolves when the cell is dividing.

What are cancer cells? This is a photo of cancer cells can you tell what gives it away?

Goto a interactive model of a cell draw a table of the organelles, Name, What they do

Bacteria Tree of life -Zoom and pan

Microscope Rules

Microscope Rules:

Scientific Drawing rules
label drawing
write what it is
date it
write magnification from number on the side of the eyepiece and the number on the adjuster.
clear lines
no shading
use pencil
do big diagram
do cell wall
label nucleus
all writing goes around the drawing with arrows pointing in or using a, b, c

Steps for setting up microscope:

1. Hold microscope on the bottom with one hand and top with the other
2. Plug microscope in and turn on light
3. set to the lowest power
4. gently slide the specimen underneath the clamps with the cover slip directly above the lights
5. raise the stage. mke sure you don't crack the slide. slowly lower stage to focus

Setting up slide

1. Grab a slide and cover slip
2. put specimen on slide
3. put 1 drop of water on specimen
4. put cover slip over the specimen on an angle. press any air out.
5. mop up any extra water.

Matter Round Up

We need to do an online topic test.

For this you will need to revise:
1> How is matter different from heat and energy.
2> What and Why some states of matter can or can't be compressed
3> How Diffusion works
4> What particles are like and what how they move in states of matter.
5> What happens to interparticle spacing when a solid is heated
6> Basic properties of matter.
7> Understand and recall the Donut of matter transformations
8> Recall the particle diagrams of the states of matter.
9> Understand condensation
10> Recall when matter is changing state its temperature is constant while it does so
11> Identify condensation, and energy transfer
12> Volume calculation of irregular objects by liquid displacement
13 > Experimental Safety
14> Properties of various states of matter
15 > Graphing exercise and interpretation of heat transfer by different matterial


More support

During State changes-
Heat drives change from solid to liquid, and liquid to gas and temperature of the mixture is constant ( Water Freezes at 0 and Boils at 100C at sea level.)
The energy is required because the particles are in energy pits or wells in the lower states.
When the reverse happens, Condensation or Freezing, the Matterial supplies heat to the environment as the particles move into their energy pits.

Water Boiling

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via videosift.com

Heat Conduction

Cells

What is a cell ?

Who studies cells & why ?

What happens in humans if something goes wrong with a cell ?

Interesting links :Centre of the cell

Solid Liquid Gas

Podcasts coming soon

states of matter

This is possibly the worst video on SLG

Homework Register

1. Complete cloze passage on plants

New Planimal

Zoo Photos

Classification

c

Open publication - Free publishing - More animals

plants

http://issuu.com/glazaro/docs/plant_classification_-_issuu?mode=embed&layout=http%3A%2F%2Fskin.issuu.com%2Fv%2Flight%2Flayout.xml&showFlipBtn=true&autoFlip=true&autoFlipTime=6000

Another Schools Classification Work

Open publication - Free publishing - More taxonomy

Excel Key

This is an example of how to use excel to make a key

Fifth Force

Communication and Science

Single cell bacteria communicate by chemicals to change behaviour.
Multicellular organisms have been around for 1,500,000,000 years. To work together the cells have to communicate by chemicals. Internally this is called hormones. External this is called pheromones. More complex information can be transmitted through dance.





This is the most incredible video, I really didn't think I would see this in my life time, Your brain sends a signal to your nerve cells to squirt Calcium on your muscles. This unleshes nanomachines seen here. This is truely beautiful scientific work, being able to see the individual atoms. Thus you can see you use chemical energy transformed into electrostatic force to ratchet your musles.

Magazines to look at through the holidays

Open publication - Free publishing - More entertainment

Open publication - Free publishing - More 2008

Magnetic Field

Below is a spinning Magnetic star in the Crab Nebulae
This is a detailed site covering the science of the observation.This is seven shot taken over a year by the Hubble Space Telescope, then looped every 15 seconds

Below is a video tour of the space station, The gravity is still there, but there are no forces because every thing is falling at the same rate. Everything has the same Mass, but the Weight force is Zero.

Advance science Applet to look at

Latest Magnetic Celestia

Press enter and type "Magnetic Earth" enter and then 'g' to go.
This will take you to a magnetic field earth. The field lines go through space. There are various types of trapped particles that spiral in the field lines forming the radiation belts of the earth.

Also check out "Magnetic Dwarf" for giant space magnets.

Press enter and type " Earth's Interior" then enter, then 'g' . this will take you to an earth where the interior is shown. Scientist are still struggling to explain the earth's magnetic field and how it could be generated from this structure.

Save your powerpoint to your home drive.

Also "ISS" will take you to the international space station. It is still in the Earth's gravity, but as as everything is falling, there is no gravitational force between things that are falling.

Magnetic Force

History

Play act first greek sheperd with an new iron nail in shoe.

Queen Elizabeth's Doctor fashons the first ball magnet proving the world is a magnet.

Chinese use lode stone in water to navigate

Discovery of electric magnets.

Discovery of magnetic shield on earth by US space rockets

Nano milling make super magnets

Superconductors make intense field and we see we are full of tiny magnets.

Advanced Electrostatics.

This simulation show that only electrons move to and from objects and that charges induce or "polarize" objects. Make notes of this in your work book. Note charges are not coloured. Electrons are only "visible" as the silver in metals. The positively charge nucleus are a fixed latice.

This simulation shows the two types of charge, Note in your book how these charges behave.

Improve your intuitieve understanding by playing charge hockey.

Wednesday lesson

Spelling test

Visit John Travoltage

Forces tank crushes car and other forces

Communication and Forces

'In World War II in Great Britain, all church bells were silenced, to ring only to inform of an invasion by enemy troops. The episode "The Battle of Godfrey's Cottage" of the BBC sitcom "Dad's Army" included a scene where the church bells rang by mistake, leading the Home Guard to believe that an invasion was taking place.

From student LF.

Bells was Europe's communication and control mechanism. Around the middle ages every village had a church with bell tower. Bells rang to communicate time and when it was time for prayer. We use bells in this school. There were also bell tunes for specific events.

The North American Indian are famous for using smoke signals.

This lesson we saw the fascinating interaction of electric charge and the bodies own internal communication system of nerves as the hand jumps.

Bring in drink cans

We are doing an Al Can experiment. You can repeat it with as many can as you can bring in.
Tell others in the class to bring. Period 2 Friday K03

Celestia

For people on working on Celestia this is a control C link to this years next eclipse ( you have to have installed Celestia on your computer - see ebhigh -homeinstall.

Reviewing this lesson

Science has four systems working around it.

1. Science as understanding and explanation of the physical world and human thought.
2. Science has a quality system of experiments, reporting, and reproduction to link everything.
3. Science has a social system of publications, Institutions, Scientists that regulate what is investigated.
4. Science is valued by society to generate wealth and solutions (patents - inventors) it is valued by governments, military, health, and the Justice system.

This is a video of my earlier System related work/research

Work on Tuesday and Wednesday

Prac: Investigation - How do different amounts of water heat up?
Out put to IBM many eyes

System work.
1) Notes
2) Analysis - what you think
3) Problem area to look at
4) Method - Scientific Framework
5) Agreement
6) Work
7) Assessment

Latest Work on Systems

Bush fire warning system

We used the modified web cam in class today. I use it for detailed observations, like this unusual spider seen near my home. By recording observations, I can discuss it directly with others.

Systems

Consider this system.....

Scientific Method

Also look at this music video on the scientific method

Lesson 3 Feb 4

Class disscusion

fire discovered: before BC, what time: around 2-3 million years ago, apes discovered fire, homoerectus
tools in planet: (jj) 4 million years ago chimps used rock to break or crack open
science has developed before language and culture
nianithals had fire, clothing, buried people in graves, we now have dianithol DNA, have own science, parellel to humans, couldn't adapt to climate change (couldn't handle hot weather)
jj: found cave when living together was destroyed
climate very different from years ago
humans evolved clever observation-insects gone; flood coming
children have more IQ that their parents
in 1960 we would be genius
observation attributed, controlled observation
first scientfic experiments was dropping balls of leaning tower of pisa

For more reading on rising IQ scores

A good primer on the Scientific Method (youtube) Also visual Wiki

Lesson 2 Feb 3

Hand in homework on A4

This lesson SAFETY in the science lab. Looking at various resources and developing a set of rules in your book.

Homework for next monday: Write a report (hand written preferred, with hand sketches, one page max) about an important Scientist. The report is to interest others, see "horrible science". Give a feel for the times of the scientist, and how their work was accepted by society.
If you think there is music that goes with report bring it in.

(Cross curricula : English, History, Art, Music)

As the classes work may be published as an e book, please only put your initals on it.

Systems

The 7+ theme for Term One is SYSTEMS.
Start to think what the word SYSTEM means.
We discussed the Patent SYSTEM that delivers money rewards to the discovers of new science.
An gas supply SYSTEM is used to deliver gas to the Bunsen Flame.
A communication SYSTEM is used to manage and deliver this blog.
What can we say are the essential elements of a SYSTEM?

First Lesson

Welcome
Roll
What to bring
- A4 Exercise Book Covered (Next book at 75% full)
-Ruler - Red Pen -Blue Pen Pencil Rubber, Calculator
-Diary
Assessment: Book, Inclass, Assignment, Tests, Spelling
How to rule up (Australian Drafting Standard for Science Log Books)
Class Rules -
Lab rules - Quiet, Minimal movement, On Task, Protective Clothing, Instruction Routine (orders Group)
7Plus - Systems, Communication, Change, My World
Homework- on A4 loose leaf
- Ruled up to ASA
- Science and Technology in My Family
- Interesting piece of Science
- Name of a type of Scientist and what they study.