SCIENCE

MAGNETISM

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IS A INTERESTED VIDEO BASED IN WHAT IS MEGNETISM FIELD.

ATOMS

IS A VIDEO THAT EXPLAIN YOU HOW THE ELCTROM WAS DISCOVER IS VERY INTERESTED. media type="custom" key="4880367" [|http://www.youtube.com/watch?v=IdTxGJjA4Jw]

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MATTER VIDEO: IS A VERY INTERESTED VIDEO THE VIDEO EXPLAIN WHAT ARE THE STATES OF MATTER AND WHAT ARE MADE UP.

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HOMEWORK **//Plants have nutritional requirements just like humans in order to grow, develop and complete their life cycle. The supply of nutrients to the plants should be balanced, ensuring not to over or under-fertilize. Nutrients are classified according to their importance to plants and are categorized by Primary, Secondary and Micro nutrients.//**

//**These are the micronutriens types: __ BORON :__Boron is an essential plant nutrient__.__Boron is the chemical element**// //**with atomic number**// //** 5 and the chemical symbol B.high soil concentrations of boron may also be toxic to plants.Sugar transport in plants, flower retention and pollen formation and germination also are affected by boron. **// //** __Iron:__ is a chemical element with the symbol Fe and atomic numer ** ** 26, Iron is the most abundant element in the core of rec giants ****, iron is a metal **// //**but is rarely found in this form on the surface of the earth** **because it oxidizes readily in the presence of oxygen and moisture.Iron also is a component of many enzymes associated with energy transfer, nitrogen reduction and fixation, and lignin formation. Iron is associated with sulfur in plants to form compounds that catalyze other reactions.**//

__**//MANGANESE : //**__//
 * is a chemical elementwith the symbol Cu** **and atomic number****29. It is a ductile metal** **with very high thermal and electrical conductivity. Gold, caesium** **and copper are the only metallic elements with a natural color**
 * __CHLORIDE:__chloride is a mobile anion in plants, most of its functions relate to salt effects (stomatal opening) and electrical charge balance in physiological functions in plants. Chloride also indirectly affects plant growth by stomatal regulation of water loss.**
 * __ZINC:__Zinc deficient plants also exhibit delayed maturity, Zinc is not mobile in plants so zinc-deficiency symptoms occur mainly in new growth. Zinc is an essential component of various enzyme systems for energy production, protein synthesis, and growth regulation. **
 * __MOLIBDEMON:__Molybdenum has a significant effect on pollen formation, so fruit and grain formation are affected in molybdenum-deficient plants.molybdenum requirements are so low, most plant species do not exhibit molybdenum-deficiency symptoms. **// // **Nitrogen metabolism,** **protein synthesis and sulfur metabolism are also affected by molybdenum** **.**//