Chemical Change =)

Compound = a chemical combination of two or more elements.

Chemicals bond = a link that atoms or electrically charged particles can form with each other.

Chemical formula = a way of using letters and numbers to show how much of each element is in a substance.

Ion = an electrically charge particle with unequal numbers of protons and electrons.

Molecucle = a Group of bonded atoms that acts like a single particle.

Chemical Property = a way of describing how  a substances change chemically with other substance.

Exothermic =a reaction that gives off heat.

Endothermic= a reaction that absorbs heat.

Elements and Atoms

§         Element: a susbtance that cannot be broken down any further into anything simpler.

 

§         Atom: the smallest particle of an element that has same chemical properties as the elements.

 

§         Nucleus: an atom’s dense center where most of its mass it.

 

§         Electron: a negatively charged particle that moves around an atom’s nucleus.

 

§         Proton: a positively charged particle inside an atom’s nucleus.

 

§         Neutron: a particle with no charge inside an atom’s  nucleus.

 

§         Atomic number: the number of protons in am atom.

 

§         Metal: any of a group of elements that conduct heat and electricity, is shiny and bendable.

Physical Poperties

 Matter: Any solid, liquid, or gas.

 Mass: Amount of matter in an object.

 Volume: The amount of mass in a certain volumen of materials.

 Density: The amount of mass in acertain volume of materials

 Physical Properties: A property that can be observed without changing the identity of a substance.

 Solution: a mixture of one substance dissolved in another so that the properties are the same throughout.

 Chemical change: a change in matter that produces a new substance with different properties from the original.

In what biome i woild like to life?

I want to life in the decidious forest because i like the temperature , the localetion and the animal of there also beacuse the  biome of the place that  I would life that is Italy. Also i want to see the animals as wolves, deer, bears,  Then I want to see the the snow . This is a forest biome with many trees that lose their leaves each year. This is where broad-leaves turn yellow, orange, and red, painting the land with glorious colors. Then the leaves fall to the ground. I ,like decidiuos forest and i want to walk around the forest with this bigs and colorfuls trees.

Canada, Alberta

Inglaterra, Londres

Italy, Venecia

How The Circulatoy system funcion? =)

1.The function of the circulatoy system is to transport nutrients and oxygen to the body.

2. The tree types of cell are :

red blood cell : carry nutrients to on cut how need it and take up waste.

white blood cell : fight when there are a sickness in the body.

platelets: stop bleeding and cover the injury.

3. the organ of tyhe circulator system of the circulatory system that pomp blood to the body is the heart.

4. The name of the blood vessel that carry blood from the heart to the body is arteries.

5.veins bring blood back to the heart.

6. Arteries ( bright red color- o2)
    Veins ( dark red color- CO2)
    Artyeries (too much presure)
    Veins ( no much presure )

7. The name of the blood vessel are capilaries that connect veins and ateries

Summary #8: A Blood System

Blood is a mixture of liquid, called plasma is mostly water and contains nutrients. These nutrients include dissolved sugars, proteins, and gases. Most cells in blood are red blood cells, which are shaped like a dought without the hole. They contain chemical  hemoglobin, which carries oxygen around your body. Blood also contains gemr- fighting white blood cells and platelets. When you have a cut, platelets help stop the bleeding by forming clots. Blood travels thought three Kinds of blood vessels- arteries, veins, and capillaries Arteries are blood vessels that carry blood away from your heart. Veins are blood vessels that carry blood back to your heart. Capillaries are where materials and body cells.

Summary#6 : Places to live around the world

The land on the Earth is divided into six major kinds of large ecosystems, called biome has is own kind of climate, soil, plants, and animals. Each biome can be found in different parts of the world.

desert
location: Midlatitudes.

climate:generally very hot days, cool nights; precipitatio has less than 10 inches a year..

soil: poor in animal and plant decay products but often rich in minerals.
plants: None to cacti, yuccas, bunch grasses, shrubs, and a few trees.

animals: rodents, snakes, lizards, tortoises, insects, and som birds.

Tundra

location: High northern latitudes

climate:Very cold, harsh, and ong winters; short and cool summers; 10-25 centimeters(4-10 inches) of precipitation a year.
soil: Nutrient- poor, permafrost layer a few inches down
plants: grasses, wildflowers, mosses, small shrubsanimals: mushoxen, migrating, caribou, artic foxes, weasels, snowshoe hares, owls, hawks, various rodents, occasional polar bears.

Grassland

Location: Midlatitudes, interiors of continents

climate: Cool in winter, hot in summer; 25-75 centimeters (10-30 inches) of precipitation a year
soil: Rich topsoil
Plants: Mostly grasses and small shurbs, some trees near sources of water

animal: American grasslands include prairie dogs, foxes, small mammals, snakes, insects, various birds. African grasslands include elephants, lions. zebras,m giraffes. What animals might live in Australia`s grasslands?

Deciduous Forest
Location: Midlatitudes
climate:relatively mild summes and cold winters, 76-127 centimeters (30-50 inches) of precipitation a year
soil: rich topsoil over clay
plants: hardwoods such as oaks, beeches, hickories, maples
animals: wolves, deer , bears, and wide variety of small mammals, birds, amphibians, reptiles, and insects

Taiga
location: Mid-to high latitudes
climate: Vey cold winters, cool summers; about 50 centimeters (20 inches) of precipitation a year

soil:acidic, mineral-poor, decayed pine and spruce needles on surface

plants: Mostly spruce, fir, and other evergreens

animals: rodents, snowshoe hares; lynx, sables, emine, caribou, bears wovels, birds in summer

Tropical Rain Forest

location: Near the eaquator

climate: Hot all year round,  200-460 centimeters (80-180inches) of rain a year

soil: Nutrient-poor

plants: Greatest diverty of any biome; vines, orchids, ferms, and a wide variety of trees

animals: More species of insects, reptiles, and amphibians than any place else; monkeys, other small and large mammals, ioncluding in some places elephants, all sorts of colorful birds