Hey it's AUTUMN!

Hey guys i was just jumping and playing around in the leaves. Fun right? You know what? I wonder what makes the leaves change color,the seasons change, and why the sunlight is less this time of year. Dont worry im not gonna LEAF you hanging. Get it instead of leave i said lea..... you know what, nevermind.





just beggin for those leaves ehh?!



First off the leaves. Leaves are green because they have and element in them called chlorophyll. Plants that are green makes their own food using chlorphyll. this prosess is called photosynthesis. On November 7th at 2:00am daylight savings time began. Which means that there is less sunlight during the day. sice treese and other plants need sunlight of produce theor food, there is not enough sunlight to do so. And that why the leaves begin to die and eventually fall off. The chlorophyll disappears but other pigments that are also present in the leaf, but were masked by chlorophyll, start to come in, like anthocyanins of betaxantins. This gives leaves unique color every autumn.

Seasons change because the axis of the earth is. As the earth moves around its orbit, there is a time when it is tilted towards the sun and so gets more of the sun's energy (summer) and a time when it is tilted away and gettibg less energy (winter). This also explains why it is summer in N hemisphere when it is winter in S hemisphere.

here are some leafin links.

click here to learn about seasons   http://christiananswers.net/kids/edn-seasons.html

 

click here to learn about the leaves colors http://na.fs.fed.us/fhp/pubs/leaves/leaves.shtm

click here to learn about daylight savings time  http://en.wikipedia.org/wiki/Daylight_saving_time

hey ION to tell you about ions

Hey can you see ION my computer,if you can GREAT if your can't that's ok too. Today we're gonna talk about ions.









This is an ion. An ion is a charged atom or molecule.It is charged because the number of electrons do not equal the number of protons in the atom or molecule. An atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is more or less then the number of protons in the atom.


When an atom is attracted to another atom because it has an non equal number of electrons and protons, the atom is called an ION. If the atom has more electrons than protons, it is a negative ion, or ANION. If it has more protons than electrons,it is a positive ion.




The outer shell of any atom is called the valence shell. When the valence electron in any atom gains common energy from some outside force, it can break away from the parent atom and become what is called a free electron.They can also be positive because they like to loose electrons, or negitive because they like to gain electrons.







An ionic bond is a type of chemicial bond formed through an  electric  between two diffrently charged ions. Ionic bonds are formed between a cation, which is usually a metal, and an anion, which is usually nonmetal. 




well stay cationios, and ion to see you later. stay positive and or negitive.


Corny puns rule!

SYMBIOSIS

A wide bunch of interactions with plants, animals, and microorganisms occur in nature. Some of these
relationships are made by a close environmental association with species that obtains for a significant
period of the life cycle. In 1879 German ecologist Heinrich Anton de Bary made the word "symbiosis" to
describe these relationships, meaning the living together of different species of organisms.
An interaction is considered a symbiosis based on the closeness of the physical union among the
organisms rather than on the effect or outcome of the interaction. Symbiotic relationships span a spectrum
from beneficial to detrimental effects. Many people associate symbiosis with mutualism , interactions that
are helpful to the growth, survival, and reproduction of both interacting species. But symbiotic
mergings also include commensalism.