Natural Science mind map and review II

 Dear students,

Please review your notes in the notebook, the revision worksheet and the activity book.

This is an example of a mind map that you can create:

Natural Science Revision worksheet !!

Activity book answer key

Review of the male reproductive system and Fertilisation, pregnancy and birth!! Questions for mind MAP

  Let´s complete the definitions:

1. The _______________ is a fold of skin that covers the penis.
2. The _______________ produce the sperm cells.
3. The _______________ is a bag of skin that contains the testicles.
4. The _______________ is a tube that joins the bladder, prostate and the penis.
5. The _______________ is a large gland that produces a white liquid.

BIRTH

During birth, several changes occur in the mother´s body. (1) First, the walls of the uterus start to contract. (2)Then, the cervix gets wider to enable the baby to come out of the uterus. (3)Next, the amniotic sac breaks and the contractions push the baby into the vaginal canal.

(4)Little by little, the baby is expelled, headfirst, through the vagina. Once the baby is outsidethe mother´s body, it starts to breathe and the doctor cust the umbilical cord. Finally, the amniotic sac, the placenta and the rest of the umbilical cord are expelled.

Complete the following sentences in your notebook:

a) Fertilisation takes place when ______________________________.

b) During pregnancy two organs form __________________________.

c) The placenta provides the fetus with _________________________.

d) During birth, the uterus __________ and the cervix ______________.

e) Once the baby is expelled, the doctor ________________________.

f) Finally, the __________________________________ are expelled.

Questions for the mind map!!

What´s the zygote?

What´s an embryo?

When does the embryo become a fetus?

What´s the pregnancy?

What´s the placenta?

What´s the amniotic sac and the amniotic fluid?

What are the four phases or steps in the BIRTH?

Stages of pregnancy video!!

Review of the Male reproductive system and fertilisation, pregnancy and birth

 Let´s complete the definitions:

1. The _______________ is a fold of skin that covers the penis.
2. The _______________ produce the sperm cells.
3. The _______________ is a bag of skin that contains the testicles.
4. The _______________ is a tube that joins the bladder, prostate and the penis.
5. The _______________ is a large gland that produces a white liquid.

BIRTH

During birth, several changes occur in the mother´s body. First, the walls of the uterus start to contract. Then, the cervix gets wider to enable the baby to come out of the uterus. Next, the amniotic sac breaks and the contractions push the baby into the vaginal canal.

Little by little, the baby is expelled, headfirst, through the vagina. Once the baby is outsidethe mother´s body, it starts to breathe and the doctor cust the umbilical cord. Finally, the amniotic sac, the placenta and the rest of the umbilical cord are expelled.

Complete the following sentences in your notebook:

a) Fertilisation takes place when ______________________________.

b) During pregnancy two organs form __________________________.

c) The placenta provides the fetus with _________________________.

d) During birth, the uterus __________ and the cervix ______________.

e) Once the baby is expelled, the doctor ________________________.

f) Finally, the __________________________________ are expelled.

Questions for the mind map!!

What´s the zygote?

What´s an embryo?

When does the embryo become a fetus?

What´s the pregnancy?

What´s the placenta?

What´s the amniotic sac and the amniotic fluid?

Stages of pregnancy video!!

Male Reproduction system - process

The male reproductive system matures during puberty. This is when the testicles start to produce millions of sperm cells:

1.) First, sperm cells are produced in tiny tubes inside the testicles.

2.) Then, each vas deferens transports sperm cells from one of the testicles to one of the seminal vesicles.

3.) Next, the sperm cells in the semen are transported through the prostate and into the urethra.

4.) Finally, the semen travels through the urethra and out the end of the penis. This process is called ejaculation.

Mindmap:

• What does the male reproductive system produce? What does it do?
• What are the main parts of the male reproductive system?
• What are the vas deferens?
• What is the prostate?
• What is the function of the testicles? and the scrotum?

Mindmap - reproductive cells and reproductive system

Dear students,

It´s time to create a mindmap of the reproductive cells and the reproductive systems:

- Are male and female bodies the same? why?

- What are the primary sex characteristics?

- Which are the human reproductive cells?

- What does a reproductive process involve?

- What is the right order: fetus, birth, zygote, fertilisation, zygote?

The female reproductive system:

- What does the female reproductive produce?

- What is the female reproductive system formed by?

- What parts do the external female sex organs include?

- What are the ovaries?

- What is the uterus? What are the fallopian tubes? What´s the cervix?

- What is the menstrual cycle?

Natural Science Review part II

 Dear students, 

Let´s try to complete the following:

Match the following definitions:

1) Kidneys: // 2) Bladder: // 3) Blood Vessels: // 4) Trachea: 5) Bronchi:

a) It´s an organ in the bnody where urine is stored.

b) They are tubes that carry blood around the body. Arteries and veins are both blood vessels.

c) They are two tubes that connect the trachea to the bronchioles in the lungs.

d) They are two organs that filter blood to remove waste liquids.

e) It´s the tube that connects the mouth to the bronchi.

Answer sheet: 1) --> d) ; 2) --> a) ; 3) --> b) ; 4) --> e) ; 5) --> c)

Draw a heart and label the following parts:

a) Right atrium.

b) Right ventricle.

c) Left atrium.

d) Left ventricle.

e) Superior cava vein.

f) Inferior cava Vein.

g) Aorta artery.

h) Pulmonary arteries.

i) Pulmonary veins

j) Septum (it divides the heart in two sides, right &left)

Could you describe the function of the following systems and its organs?

- Digestive system

- Respiratory system

- circulatory system

- Excretory system

What are the functions of the different blood cells?

Natural Science Review Part I

 Dear students,

Please try to review your notes and answer the following questions:

Part I

1.) In what part of the body does food mix with gastric juices?

Food mixes with gastric juices in the _______________

2.) In what part of the body does food mix with bile from the liver?

________________________________________________________

3.) What do we call solid waste substances that are expelled through the annus?

________________________________________________________

4.) What are the three stages of digestion?

________________________________________________________

5.) What organ contains millions of bronchioles and alveoli?

________________________________________________________

6.) What gas do we absorb from the air in our lungs?

________________________________________________________

Part II.

Let´s find the name of the organs or parts of the body:

a.) What organ has four chambers and functions like a pump?

b.) What part of the body filters blood to remove waste and extra water?

c.) Which part of the body absorbs nutrients from the food we eat?

d.) Where does our body store solid waste, or faeces?

e.) Where is the urine is stored before we expelled it?

f) What are the large tubes that carry from the lungs to the muscles?

The Excretory system, mindmap and videos!!

Dear students,

Let´s try to create a mindmap of the excretory system, so that we can remember the most important parts and ideas:

Our Excretory System

The excretory system is made up of all the organs that remove waste substances from the body. These substances can include excess water and other waste substances.

Exhaling and Sweating

Our body also removes waste by sweating and exhaling. Sweat is made up of the waste water and salts that are stored in our sweat glands. When we sweat, the waste water is expelled through pores in our skin. When we exhale, we also expel waste substances.

Our cells absorb nutrients and oxygen. As a result, they produce waste substances like carbon dioxide and water. Our blood transports these waste substances to our lungs, they are

expelled when we exhale.

MINDMAP questions!!

What´s the main function of the excretory system?

What´s the first organ that undigested food and waste products pass through?

What happens in the large intestine?

Where are the faeces expelled?

What is the function of the kidneys?

Where is the urine stored?

What occurs in the urethra?

Do we remove waste in other ways?

Click to watch "Excretory system" video I!!

Click to watch "Excretory system" video II

The circulation system! Please, read and review!

 Dear students, 

Let´s review and underline the info related to the Circulatory system:

Circulation

When blood enters the heart, it´s pumped into the lungs. In the lungs, the red blood cells absorb oxygen. This oxygenated blood is pumped back into the heart. The heart then pumps the oxygenated blood around the body.

The blood vessels are tubes that connect the heart to the rest of the body. There are three types of blood vessels.: arteries, veins and capillaries. Arteries carry blood away from the heart. Veins carry blood back to the heart. Capillaries are tiny blood vessels that connect the smallest arteries to the smallest veins. Capillaries have very thin walls so gases, nutrients and waste products can go through them to the cells.

Click to watch "circulatory system" video!!

Let´s create a mindmap:

How are the nutrients and oxygen are transported to the organs and bones?

What´s the function of the heart?

What are the red blood cells responsible for?

What do white blood cells do and platelets?

How many types of blood vessels do we have?

What is the difference between arteries and veins?

Please, underline the process of circulation with the 5 steps.

Respiratory system: drawing of the respiratory system

 Dear students,

Let´s try to create the following drawing about the respiratory system in your notes:

Please, indicate each of the parts: mouth and nose; trachea; lungs, bronchi; diaphragm and bronchioles.

Please, watch Respiratory system video!!

Activity of Nutrition _ Activity Book

 Dear students,

Please, let´s try to complete the activities 1 and 2 of the Activity book

Click to watch the "Digestive system" Video I

Click to watch "Digestive system" Video II

Introduction to Nutrition _ Digestive system Part I

 Dear students,

OUR DIGESTIVE SYSTEM

We eat to get the nutrients that our bodies need to live and grow. Our digestive system takes these substances from the food we eat.

What is the process of the digestive system? 

1) Mouth: digestion starts in the mouth. The teeth crush the food and then mix it with saliva.

2) Esophagus: the food travels down the esophagus to the stomach.

3) Stomach: in the stomach, the food mixes with gastric juices.

4)  4)  Liver: the liver produces a liquid called bile that helps break down food.

     5) Small intestine: the food goes into the small intestine. Here it mixes with bile from the liver. Nutrients are absorbed here and they pass into the blood.

1.      6) Large intestine: the undigested food passes into the large intestine. Water is absorbed into the body leaving waste called faeces.

1.   7) Rectum: finally, the faeces pass through the rectum and leave the body through the anus.

Click to watch the "Digestive system" Video I

Click to watch "Digestive system" Video II

PLease, review the process of the digestive system. Why all the steps and organs are important in the process?

2nd Review of interacion

Dear students:

Here you can find some questions that you can use to review. 

Please, click on the link.

Click on "Review of Interaction"

You can review the questions with your notes or previous postings in the blog.

Review of the Interaction Unit

 Let´s try to review and answer the following questions related to Interacion:

- Label the parts of the brain and desbribe them

- Parts of the five senses that transmit the information

- Can you explain how we hear? 

- The eye -> name the part of the eye that coloured the eye?

* What are the parts of the eye that are transparent?

* Is it important to blink? Why?  What is the difference between eyelids and eyelashes?

- What are the parts of the nose, mouth and the skin? 

- What is the difference between the cardiac muscles, smooth muscles and skeletal muscles?

- What is the function of the joints, tendons and ligaments? 

Match the words with the definitions related to Interaction!!

Please, try to match the following words with the corresponding definitions:

* cardiac muscles // *joints // *ligaments // *motor nerves //*sensory nerves//*skeletal muscle //*smooth muscle // * tendons //* spinal cord //* bone marrow //* involuntary movements

- soft fatty substance in the cavities of the bones, in which blood cells are produced. (b.m.)

- pieces of flexible tissue that attach the end of a skeletal muscle to a bone (t)

- long tube made up of nerves and tissue, located in the spinal column. It connects the motor and sensory nerves to the brainstem. (S. c.)

- all involuntary muscles, except those found in the heart. (s. m.)

- muscle attached to bone. (s. m.)

- nerves that carry messages from the brain to the muscles. (m. n.)

- tough fibres of flexible tissue that join two bones together. They are found in the joints. (l.)

- part of the body where two bones meet. (j.)

- involuntary muscle found in the heart. (c. m.)

- movements that are made unconsciously. For example, breathing or the heart beating. (i. m.)

- nerves that carry messages from sense receptors, such as those found in our sense organs, to the brain (s. n.).

Activity. Could you describe the steps of how we smell?

Locomotor system: skeletal and muscular system, videos and mindmaps

 Dear students,

Please, review the following notes of the locomotor system.

The locomotor system is made up of two systems: the skeletal system and the muscular system. It works in combination with our senses and our nervous system to help us interact with the world around us.

The skeletal system

The skeletal system gives us support and stability as we move around and protects our vital organs. It´s made of bones, joints and ligaments.

We have 206 bones of different shapes and sizes in our body. Each bone is suited to its function. The largest bone is the femur which is long and extremely strong. The smallest bone is inside the ear and is only 3mm long. The rib cage has space inside it for some of our vital organs, such as the lungs and the heart.

Bones are hard and solid on the outside and sponge-like in the inside. The centre of our bones is called bone marrow. This is where the blood cells are produced.

Joints are where two bones meet. Bones are joined together at the joints ligaments. Ligaments are made of tough fibrous tissue.

Click to watch "Skeletal system" video

The muscular system

The muscular system allows us to move and perform voluntary actions such as waving our hand, and involuntary actions such as breathing. It´s made up of muscles and tendons.

Muscle tissue is soft and flexible. There are three types:

·   * Skeletal muscles are voluntary muscles. We choose to contract them to move around.

·   * Smooth muscles are involuntary muscles. They can contract without us thinking about it. For example, there are smooth muscles in the small intestine that push food through the intestine.

·   * Cardiac muscles are also involuntary muscles. They are found only in the heart They contract automatically so that the heart can pump blood around the body.

Tendons attach muscles to bones. When we want to move, muscles contract and tendons pull on bones. For example, to lift your forearm up, the biceps pulls up the tendon, and the tendon pulls on the bones in the forearm, lifting it up.

Click to watch "Muscular system" video

Let´s try to create a mindmad for next week:

- What are the two main parts of the locomotor system?

- Do they work in combination with any other things?

- How many bones do we have in our body?

- How are the bones in the outside? And inside?

- What is the bone marrow (médula espinal)?

Muscular system

- What is the muscular system?

- How is the muscle tissue? Could you mention one example?

- What are skeletal muscles? Might you mention one example?

- What are smooth muscles? Would you mention one example?

- What are cardiac muscles? One example is ......

- What are the tendons?

Review Activity and the Smell & taste senses (Please read and review)

Activity 1. Answer the questions below: 

1. What part of the eye can be blue, brown or green? 

I. __________________________________________________ 

2. Which part of the eye protects it? 

I. __________________________________________________ 

3. Which part of the is transparent? 

I. __________________________________________________ 

4. Which part of the sends information to the brain? 

I. __________________________________________________ 

Our Senses: Taste and Smell

We can detect flavour with our tongue. We can detect smell with our nose. The mouth and the nose are connected.

How we smell

Smell are made of gases in the air. When air goes into your nose, the gases go into your nasal passages. The olfactory cells detect the gases and send nerve impulses to the olfactory nerve. The olfactory nerve transmits the impulses to the brain and the brain interprets the information.  

Click to watch "Smell sense" video I

How we taste 

The tiny, pink bumps on your tongue are called taste buds. They can detect special chemicals in the things that you eat and drink. The chemicals mix with saliva and then the taste buds detect them. The taste buds produce nerve impulses and transmit them to the gustatory nerves. These nerves are inside the tongue, connected to the taste buds. These nerves then transmit the impulses to the brain. Finally, the brain interprets the information.

Click to watch "taste sense" video

How taste and smell are connected 

Have you ever noticed that food doesn´t taste good when you have a cold? This is because your senses of smell and taste work together. Your taste buds detect different tastes, such as sweet, salty, sour and bitter tastes. While your nose detects thousands of different smells. These messages combine in the brain to give a perception of flavor. 

Let´s think about the following questions:

- How do we detect smell and taste?

- Can you mention three important parts of the smell sense?

- How is the smell sent to the brain?

- What do the taste buds do?

- Are the taste and smell senses connected? Where do they mix the information?

Smell Sense video II

SENSES Review

 Dear students,

Let´s try to do a quick review:

- What are the main parts of the nervous system?

        - Could you explain the function of each part?

        - How do we receive the information around us with the nervous system?

- What are the different parts/layers of the skin in the touching sense?

- What are the parts of the hearing sense?

        - Might you explain the process of hearing?

- What are the important parts of the eye?

        - May you explain the function of each part?

Let´s try to answer the following answers with True or False and explain your answer:

- The brain stem controls involuntary movements, for example, breathing.

- The gap between two neurons is called a cell body.

- The auditory nerve sends information from the eye to the brain.

- It´s important to eat healthy food and drink lots of water.

Our senses: sight (What are the parts of the eye and their functions? and How do we see?)

 Dear students,

Let´s review and check the parts of the sight.

We can see the color, movement and the distance of objects with our eyes. We should protect our eyes when necessary.

Parts of the eyes and their functions.

The iris is the coloured part of the eye. It surrounds the pupil. It´s made of very small muscles that open and close the pupil.

The cornea covers and protects the iris and the pupil.

The lens is a transparent, oval-shaped structure that focuses light on to the retina. It´s located behind the pupil and the iris.

The retina is made up of nervous tissue arranged in thin layers of cells that detect light and colours. They send information to the optic nerve.

The optic nerve is connected to the brain. It transmits information from the retina.

How we see

1.   1. Light goes into the eye through the pupil: then it passes through the lens.

2. The lens project an upside-down image onto the retina. This information is sent to the optic nerve.

3. The optic nerve transmits the information to the brain.

Activity:

* Could you name the different parts of the eye and their functions? 

* Would you be able to explain how the eye works?

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Let´s complete the activity book - Interaction & our senses

Dear students,

Let´s try to complete the exercises of the activity book.

Please, review your class notes and try to complete the following activities from your activity book.