BABY: THE FIRST NINE MONTHS

We are used to thinking of a baby being age 0 on the dayit is born. But it has been growing for about nine months before it enterw the Word. This is what happens in the nine months (38 weeks) before is born.

WEEK 0: Egg is fertilised in the tube.

WEEK 1 : Embryo becones atached to the womb.

WEEK 2: Embryo ‘s eyes Begin to develop . Its legsand arms are tiny bumps.

WEEK 6 : Embryo begins to look like a human. Ears, hands and feet begings to grow. Heart

WEEK 10 : Baby’s finger and toes grow, it can move its arms and legs a little. It can even swallow.

WEEK 14: If doctors could see the baby, they could tell if it was a boy or a girl.

WEEK 18: Baby hás hair eyebrows.Doctors can hear its heart beat. It can have ... mother begins to feel its kicks.

WEEK 26 : Baby open its eyes.WEEK 30 : If born now, the baby could live with especial care .

WEEK 34 : Baby has grown a lot of fat in the last four weeks to keeps it warm when it is born.

WEEK 38 : Baby is born.

what is an egg ?

In some animals, an egg is a rounded body, varying in size and hardness, which produce females, and supports and protects the embryo if the egg is fertilized, thus becoming zygote.

when the baby is in the wonb

how does it get food and oxygen

what are contractions?

The uterus is an organ primarily composed of muscle tissue. Like any muscle contractile activity has throughout his life, within and outside of pregnancy but usually this is not perceived by women.

how is a baby born

An infant or newborn is a baby who has 27 days or less from birth, either by birth or by cesárea.1 2 The definition of this period is important because it represents a very short life, but it rapid changes occur that can result in significant consequences for the rest of the life of the newborn.

why does the growing embryo depend on the cord

An infant or newborn is a baby who has 27 days or less from birth, either by birth or by cesárea.1 2 The definition of this period is important because it represents a very short life, but it rapid changes occur that can result in significant consequences for the rest of the life of the newborn.

why can the cord be safely cut once the baby is born

leave the baby at birth by two minutes attached to the umbilical cord as well as reducing the risk of anemia during childhood as it makes the baby will get more iron, can also bring other benefits such as greater concentration of antioxidants and reduce the need for therapy oxygen at birth.

if a woman beginsto realease eggs at the age of 15 and stops releasing then at 45 hoe many eggs will she produced?

find out what special foods a mother to be should have in her diet and why?

It is a dietary mistake the old concept of a pregnant woman, having to feed two, to eat out too much. Actually, this is not the diet that included more food but that food which constitute the body provide the necessary amount of essential nutrients for good health of the mother and the healthy growth of the creature.

¿Qué sucede con la presión si aplicamos calor? Para dar respuesta a esta pregunta, observemos lo que sucede en el experimento de la botella plástica. Cuando aplicamos calor a la botella, calor que viene desde nuestras manos, observamos que la moneda sobre la boca de la botella, de un momento a otro, salta. Este fenómeno nos sugiere que, al aplicar calor al gas, este aumentó su presión, de modo que en la boca de la botella se produjo una diferencia de presión (valores diferentes de la presión entre dos puntos del espacio), que se traduce en una fuerza neta hacia arriba que hace saltar la moneda.

1. Con el clavo y el martillo realizamos un agujero en la tapa del bote de cristal. Cuidado con el martillo.
2. Metemos la cañita tal como vemos en la imagen.
3. Llenamos de agua el tarro (unos dos cm) y colocamos la tapa. Es importante que no entre aire en el tarro. Ponemos pegamento en la unión de la cañita con el agujero de la tapa y, si es necesario, podemos sellar la tapa del bote con cinta aislante.
4. Rodeamos el bote con nuestras manos.

Vemos que sube agua por la cañita.


Explicación:

La temperatura de nuestro cuerpo es superior a la temperatura del frasco de cristal.
Al rodear el bote con nuestras manos, suministramos energía al frasco de cristal y aumenta la temperatura del aire en el interior del frasco. Dicho aumento de temperatura produce un aumento de la presión en el interior del frasco que empuja el líquido que sube por la cañita.
Si abrimos la tapadera del frasco, la presión en el interior recupera su valor original y el líquido que sube por la cañita cae al frasco.

HEAT AMD TEMPERATURE

HEAT: is energy in transit it is transmited between bodies wich are at different temperatures and wich come into contact with each other.

TEMPERATURE: is a physical magnitude related to the amount of heat that a boby can receive and absorb. it is a type of energy wich is not, it only appears the transfer of energy.

HEAT TRANSMISSION IN BODIES

CONDUCTION: is the transmission of heat through an solid object example: a piece of metal in the fire.

CONVECTION: transfer heat through an interchange of cold and hot molecules example heating water in a tea pot.

RADIATION: is the transfer of heat by electromagnetic radiation, gerenally with infrared exampleis the way a room is warmed.

HOMEWORK

investigate 

thermometer scals 

perceptionof heat the skin, the sense of touch 

burns

hot bodies 

cold bodies

solution

low heat 0 34' c

normal 36'c 37'c

high heat 38'c

thermometer : instrument used to measure the temperature. the most used thermometer is the made up of mercury formed by a capillaryof glass of a uniformdiameter comunicater by an end with a blader full with mercury.

TYPES OF THERMOMETER 

* made of glass and using mercury

* made of glassand using niquel, oxid, coblat and magnesium 

* for high temperatures made of metal using electronic circuits.               

LIGHT
NO one can see anything in a completely darkned room. There has to be light before you can see. You see when light enters your eye. And so you have to know something about light to understand how the eye Works.
WHAT IS LIGHT?
Light is a kind of energy. It’ s a type of radiation. Light energy is given off by a sun, by electric light, bulbs, by candles, and other light sources. Light energy travels from one place to another.
The light travels in atraight lines. (You can see that from the picture of the sun). It’ s often useful to think of the light travelling as light rays. The rays are like tiny beans of light, travelling through the air at 300.000 km each second.
SHADOWS AND REFLEXIONS
Because light tralvels in straigh lines, shadows form.
WHAT IS SHADOW?
Is an area behind on object where no light from a light source reacines.
When the sun shines on an object like a tree, the sun’ s cannot bend round cornrs to reach the area behind it. That’ s why the area behind the tree is dark, and that’ s what makes. The shadows light rays can be bounced off, or reflected off an object you see thid board because rays of light are being reflected from it into your eye. Shiny, surfaces, like a mirrors reflects light best you can see how a mirror reflects the rays.