VIDEOS PARTS OF THE PLANTS

ACROSS:

2 take nutrients from the soil

1the plant grow up from that object

DOWN:

7 have the seeds inside

3 is beautiful and also have seeds inside
BY: Matias

Parts of the green plants

Roots

Roots are located at the lowest end of the plant, usually underground. The roots look like strings that are intertwined in random webbing. With fibrous root systems, the roots are thin and delicate but each system has several roots. A taproot system has only a few actual roots, but the roots are thick and hardy. The purpose of all root systems is to carry water and nutrients from the soil to the plant and to offer stability in the ground.

Stems

Stems are what create the height or length of a plant to allow it to reach sunlight. The stems connect the roots with other parts of the plant and serve as transportation for nutrients and water between the roots and other parts. Stems on vegetables, smaller leafy plants and flowers are usually thin, but stems can also grow to be quite large, as with trees, shrubs and thick vine plants.

Leaves

The leaves of a green plant are attached to the stem with a smaller stem-like branch called a petiole. They are the part of the plant that facilitates photosynthesis, which is a process through which the plant uses sunlight, carbon dioxide, chlorophyll and the nutrients from the root system to create glucose, a food for the plant, and releases oxygen into the air. Leaves can be simple, with single leaves, or compound, where several leaves are attached to the same petiole.

Flowers

Flowers are typically seen as attractive decoration for plants, but they are actually the site of reproduction for the plant. They are an important part of the life cycle of the plant, as the plant itself has only the intent of spreading itself to create more plants. Flowers are made up of male and female parts. The female part is the pistil, which is made up of the stigma, style and ovary. The pistil is surrounded by stamens, the male part of the flower, which are made up of anthers and filaments. The stamens produce pollen, which lands on flowers' pistils and fertilize the flowers by traveling into the lowest part of the pistil, the ovary. Once fertilization occurs, the ovary produces seeds. It grows and swells as the seeds mature, eventually becoming the fruit of the plant.

Fruit

During the seed production process, the flower's ovary swells as seeds are produced. The ovary itself forms the fruit of the plant. The fruit is made up of the seed, which is a plant embryo, and the protective outer layer, the fruit itself. The fruit contains the seed until the fruit is consumed or it decomposes. If the fruit is consumed by a human or other animal, the seeds are spread through animal digestion or human intervention.

Bibliography:

http://www.ehow.com/list_7329842_parts-green-plants.html

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·         ROOTS

·         STEM

·         FRUIT

·         LEAVE

·         FLOWER

·         SEEDS

BY: Matias

Microscope Description

Microscope
The first compound microscope was made in 1590 in The Netherlands. Hans Lippershey, Sacharias Jansen, and Hans Jenssen, all eyeglass makers, have each been given credit for the invention. Apparently working independently but at the same time, they developed almost identical concepts. See the related link for more information.
If a microscope is any instrument that allows the inspection of objects that the unaided eye can't see, then reading stones  were the first microscopes, Egypt, ca 7,000+ BC .These were probably very similar to what Leeuwenhoek found being used by cloth merchants (ca. 1648) to count the threads in cloth. The next candidate would be spectacles. There is little controversy over the date: ca. 1285 CE. There is more contention concerning the inventor, but Salvino D'Armate is most often credited with the first wearable eyeglasses.

If the definition of microscope requires the use of an instrument, in or upon which, to mount the lenses, then eyeglasses fit this definition too. If multiple lenses are the criteria, then the compound microscope, mentioned above, is the choice.

Antonie Philips van Leeuwenhoek (ca. 1668) and Galileo Galilei (ca. 1624), are sometimes credited with the invention of the microscope, but they were actually the authors of its improvement, not its inventors. Interestingly, it was a friend of Galileo's, Johannes Faber, that gave the name, microscope, to Galileo's instrument. (So, in this left-handed way, perhaps Galileo actually did 'invent' the microscope

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Arm

Tube

Base

Illuminator

Eyepiece

Read More
http://wiki.answers.com/Q/Who_invented_the_microscope#ixzz24l2MSh5H

By: Andres Correa