An interesting link (lots of words though!):
Please click here: Smithsonian Education on Partners in Pollination
Tuesday, 20 March 2012
Movement of Substances
Here were some of the videos (and some additional ones) that I showed in class. If you want them to revise, here you go.
Diffusion
Osmosis
Don't know whether this works! Will try it one day!
Active Transport
Diffusion
Osmosis
Don't know whether this works! Will try it one day!
Active Transport
A Virtual Cell
An interesting site: might help in your understanding of the chapter, Cellular Structure and Organisation. Click on the link and have fun!
Here is the link!
Yours,
Mrs Lehming
Here is the link!
Yours,
Mrs Lehming
A Note
My dear students,
I must apologise for the lack of posts here of late. I have been really busy and my schedules have not permitted me to post regularly.
From now on, however, I will post a little more regularly. :))
I have made up a time-slot in my schedule so that I can dedicate these few minutes into making lessons and topics more enjoyable and understandable for you.
Bear with me, your human teacher, as you learn.
All the best with all your studies and remember always that asking questions (*whether you deem them silly or not) is always the first step in learning anything.
Yours,
Mrs Lehming
I must apologise for the lack of posts here of late. I have been really busy and my schedules have not permitted me to post regularly.
From now on, however, I will post a little more regularly. :))
I have made up a time-slot in my schedule so that I can dedicate these few minutes into making lessons and topics more enjoyable and understandable for you.
Bear with me, your human teacher, as you learn.
All the best with all your studies and remember always that asking questions (*whether you deem them silly or not) is always the first step in learning anything.
Yours,
Mrs Lehming
Wednesday, 25 January 2012
Ecology!
My Dear Ecologists,
Here are some videos that will help you to understand in greater detail what exactly Ecology is ... and all the other stuff we do in our lessons =) so here you go!
(1) Ecology: An Introduction
(2) What is an Ecosystem?
(3) The Carbon Cycle
(4) The Carbon Cycle by NASA - Unnarrated: Follow the Text
Carbon is the basic building block of life, and these unique atoms are found everywhere on Earth. Carbon makes up Earth's plants and animals, and is also stored in the ocean, the atmosphere, and the crust of the planet. A carbon atom could spend millions of years moving through Earth in a complex cycle. This conceptual animation provides an illustration of the various parts of the Carbon cycle. Purple arrows indicate the uptake of Carbon; yellow arrows indicate the release of Carbon.
On land, plants remove carbon from the atmosphere through photosynthesis. Animals eat plants and either breath out the carbon, or it moves up the food chain. When plants and animals die and decay, they transfer carbon back to the soil. Moving offshore, the ocean takes up carbon through physical and biological processes. At the ocean's surface, carbon dioxide from the atmosphere dissolves into the water. Tiny marine plants called phytoplankton use this carbon dioxide for photosynthesis. Phytoplankton are the base of the marine food web. After animals eat the plants, they breathe out the carbon or pass it up the food chain. Sometimes phytoplankton die, decompose, and are recycled in the surface waters. Phytoplankton can also sink to the bottom of the ocean, where they become buried in marine sediment. Over long time scales, this process has made the ocean floor the largest reservoir of carbon on the planet. In a process called upwelling, currents bring cold water containing carbon up to the surface. As the water warms, the carbon is then be released as a gas back into the atmosphere, continuing the carbon cycle.
Carbon is found in the atmosphere as Carbon dioxide, which is a greenhouse gas. Greenhouse gases act like a blanket, and trap heat in the atmosphere. In the past two centuries, humans have increased atmospheric carbon dioxide by more than 30%, by burning fossil-fuels and cutting down forests.
Carbon is the basic building block of life, and these unique atoms are found everywhere on Earth. Carbon makes up Earth's plants and animals, and is also stored in the ocean, the atmosphere, and the crust of the planet. A carbon atom could spend millions of years moving through Earth in a complex cycle. This conceptual animation provides an illustration of the various parts of the Carbon cycle. Purple arrows indicate the uptake of Carbon; yellow arrows indicate the release of Carbon.
Credit: NASA/Goddard Space Flight Center/UMBC
(5) The Nitrogen Cycle - A Stop-Motion Picture (Watch this first before the next one)
http://www.youtube.com/watch?v=6GLIzlUD-zw
(6) The Nitrogen Cycle - It's Easy!
(7) NASA: Keeping up with Carbon
(8) Earth: Our Earth
(9) Earth in Wide Angle?
(10) Human Impact on the Environment
Yours,
Mrs Lehming
Here are some videos that will help you to understand in greater detail what exactly Ecology is ... and all the other stuff we do in our lessons =) so here you go!
(1) Ecology: An Introduction
(2) What is an Ecosystem?
(3) The Carbon Cycle
(4) The Carbon Cycle by NASA - Unnarrated: Follow the Text
Carbon is the basic building block of life, and these unique atoms are found everywhere on Earth. Carbon makes up Earth's plants and animals, and is also stored in the ocean, the atmosphere, and the crust of the planet. A carbon atom could spend millions of years moving through Earth in a complex cycle. This conceptual animation provides an illustration of the various parts of the Carbon cycle. Purple arrows indicate the uptake of Carbon; yellow arrows indicate the release of Carbon.
On land, plants remove carbon from the atmosphere through photosynthesis. Animals eat plants and either breath out the carbon, or it moves up the food chain. When plants and animals die and decay, they transfer carbon back to the soil. Moving offshore, the ocean takes up carbon through physical and biological processes. At the ocean's surface, carbon dioxide from the atmosphere dissolves into the water. Tiny marine plants called phytoplankton use this carbon dioxide for photosynthesis. Phytoplankton are the base of the marine food web. After animals eat the plants, they breathe out the carbon or pass it up the food chain. Sometimes phytoplankton die, decompose, and are recycled in the surface waters. Phytoplankton can also sink to the bottom of the ocean, where they become buried in marine sediment. Over long time scales, this process has made the ocean floor the largest reservoir of carbon on the planet. In a process called upwelling, currents bring cold water containing carbon up to the surface. As the water warms, the carbon is then be released as a gas back into the atmosphere, continuing the carbon cycle.
Carbon is found in the atmosphere as Carbon dioxide, which is a greenhouse gas. Greenhouse gases act like a blanket, and trap heat in the atmosphere. In the past two centuries, humans have increased atmospheric carbon dioxide by more than 30%, by burning fossil-fuels and cutting down forests.
Carbon is the basic building block of life, and these unique atoms are found everywhere on Earth. Carbon makes up Earth's plants and animals, and is also stored in the ocean, the atmosphere, and the crust of the planet. A carbon atom could spend millions of years moving through Earth in a complex cycle. This conceptual animation provides an illustration of the various parts of the Carbon cycle. Purple arrows indicate the uptake of Carbon; yellow arrows indicate the release of Carbon.
Credit: NASA/Goddard Space Flight Center/UMBC
(5) The Nitrogen Cycle - A Stop-Motion Picture (Watch this first before the next one)
http://www.youtube.com/watch?v=6GLIzlUD-zw
(6) The Nitrogen Cycle - It's Easy!
(7) NASA: Keeping up with Carbon
(8) Earth: Our Earth
(9) Earth in Wide Angle?
(10) Human Impact on the Environment
(11) Shocking Facts you did not know a minute ago
(12) What a girl said: for 5 minutes
Happy viewing people! =))
(12) What a girl said: for 5 minutes
Happy viewing people! =))
Yours,
Mrs Lehming
Sunday, 6 November 2011
[Homeostasis] Links for Extra Reading ** =)
My Dear Students,
As we now look into another new topic (Homeostasis), here are some links you may want to look at, to help stir your interest and guide your curiousity. =)
Links Part 1: A little history of Homeostasis and "Skin Science"
Here are some links you may want to look into about how we obtained our current scientific knowledge with regards to Homeostasis and our Skin in particular.
SUMMUM INGENIUM / INTEGERRIMAM VITAM / FORTEM STRENUAMQUE MENTEM / AUDACEM SALUTARIS ARTIS AMOREM
1) Marcello Malpighi: an important kidney as well as skin (and many parts of our body) scientist
2) More on Marcello Malpighi from the Catholic Encyclopedia
3) Still more on Marcello Malpighi from the Encyclopaedia Britannica
*The rest is still under construction... Sorry for any inconvenience caused*
Monday, 31 October 2011
[Excretion] Video Links! To help when you learn
The Urinary System: The Nephron
The Kidney and Nephron by the Khan Academy
The Function of the Nephron
Once upon a time: Life (The Kidneys) - A very funny cartoon series Part 1
Once upon a time: Life (The Kidneys) - A very funny cartoon series Part 2
Once upon a time: Life (The Kidneys) - A very funny cartoon series Part 3
The Kidney and Nephron by the Khan Academy
The Function of the Nephron
Once upon a time: Life (The Kidneys) - A very funny cartoon series Part 2
Once upon a time: Life (The Kidneys) - A very funny cartoon series Part 3
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