Thursday, February 28, 2013

Science Fact 3-Classification

Classification is the grouping of organisms based on their similarity.
Taxonomy is the study of classification.
Taxonomists are people who study classification.

Carlos Linnaeus is called "father of taxonomy" since he classified organisms based on their structure.

There are 7 taxon levels:
Domain
Kingdom
Phyllum (for animal) Divisio (for plants)
Class
Ordo
Family
Genus
Species

1.Domain is divided into eukaryotic and prokaryotic.
Prokaryotic is the organisms that doesn't have nucleus membrane.
(monera kingdom)
Eukaryotic is the organisms that has nucleus membrane.
(fungi, protozoa, animalia & plantae kingdoms)

(a) Monera Kingdom:
-Are unicelluar organisms that doesn't have nucleus membrane.
-Divided into archeabacteria, eubacteria and cyanobacteria.

(b) Protosista/Protozoa Kingdom:
-Most are unicelluar
-Some multicelluar
-Some autotrophic and some heterotrophic
-Aquatic

(c) Fungi:
-Multicelluar, except one, yeast
-Absorptive heterotrophs
-Cell walls made of chitin

(d) Plantae:
-Multicelluar
-Autotrophic
-Absorb sunlight
-Do photosynthesis

(e) Animalia:
-Multicelluar
-Heterotrophs
-Feed on animals and plants




Science Fact 2 - Changes of State

There are 3 types of states of matter: Solid, Liquid and Gas.
Things can change its state because of the temperature change.
The process of changing of state are in this picture below:
The processes melting, evaporation and sublimation gains heat or needs heat
The processes freezing, condensation and resublimation/deposition releases heat

1.Melting:
Process from solid to liquid.
example:
ice melting, chocolate melting, butter melting.
2.Freezing:
Process from liquid to solid
example:
ice in the freezer, making ice cream.
3.Evaporation:
Process from liquid to gas.
example:
drying clothes, opened methanol bottle.
4.Condensation:
Process from gas to liquid.
example:
steam of boiling water, water on the cold glass's surface, morning dew on the leaf.
5.Sublimation:
Process from solid directly to gas.
example:
camper in the wardrobe, dried ice.
6.Resublimation/Deposition:
Process from gas directly to solid.
example:
dried ice, snow.


Wednesday, February 27, 2013

Science Fact 1- Energy

Energy is something that can't be destroyed or created. It comes from the sun (solar energy).
or from radioactive atoms in Earth's interior. Through this, we are able to produce different kinds of energy and this allows machines and even living things to move and to do things. 
Sun is the main source of energy on Earth. 
Without even knowing, we use a lot of energy to do our activities such as washing the clothes, flying the kites, cooking food, playing video games, etc. The sun produces many kinds of energy : Heat energy, so the earth will be warm; Light energy, so the earth will be bright; solar energy, through solar cells, so there will be electricity.
On Earth, there is called "alternative energy" which means that energy which will never finish when we waste it. These are alternative energies:
Sun, water, air and biofuel energy.
Others are like heat energy, light energy, potential energy, kinetic energy, water energy, magnetic energy, muscle energy, etc.
Blog viewers, energy is everywhere around you. You need energy to do your activities, even though it's only a bit.
Question of the fact 1:
What happens without energy on Earth?

Leave your answers in comments!



Science

Hey, blog readers! Science can be the nature or social. But I would like to decide this blog website is the information of nature one. This can have physics, biology and even chemistry.
You'll be able to become a professor later if you read this and understand it. Nature Science is all about what you can learn about the things around you like animals, energy, plants, human anatomy, etc. Feel free to ask in comments! Enjoy reading ;D