The human systems

As we have salready studied the digestive system, we will move forward and continue studying the human systems. Today, the Respiratory and the Circulatory systems will be analyzed!

Click on the following link to see the presentation!

Presentation

Nutrition

NUTRITION!

Nutrition process

The nutrition process involves several mechanisms in our body, we will focus in the three most important, absorption, distribution and excretion. Every process is developed in a part of our body as we describe:

• ·       Absorption: The digestive system takes the energy from the food we eat and the water of everything we eat.
• ·         Distribution: The circulatory system transport the nutrients all around inside our body.
• ·         Excretion: The urinary system throw out the wastes of our body.

In the next video, you can see an example of how our body works

Let’s take a look at the most important vocabulary we find here…

Digestive system	Circulatory system	Urinary system	Nutrition
Absorption	Distribution	Excretion	Particles
Pancreas	Stomach	Liver	Anus
Blood vessels	Throat	Esophagus (food pipe)	Small and large intestine

1    In the next activity, you have to classify the different words according to the part of the process they belong (Absorption, distribution or excretion):

Stomach – Anus – Blood – Urinary system – Throat – Chewing – Waste – Large intestine

Balanced diet

We know that we have to keep a balanced diet but….what is a balanced diet? What is included? What is the food made of? Watch the next video before you continue!

Food is made of nutrients, they are fats, carbohydrates, proteins, vitamins, minerals and water. They are all necessary for our body to work. It is like a car, if a part is missing, it stops! Knowing what is inside our food is basic and here we will see where do we obtain the necessary nutrients from.

•      Proteins. They are the muscle builders. Food like meat, eggs, nuts and fish have lots of protein.
•      Fats. The reserve of energy of our body. For example, oil, cheese, nuts and certain nuts contain lots of fat.
•     Carbohydrates. The fuel of our body, it gives us energy. Bread, cereals, rice, fruit and vegetables contain lots of carbohydrates.
•    Vitamins and minerals. They protect us of being sick and they are necessary to the correct functioning of our body. Fruits, vegetables, nuts and natural food provide us with all of our needs.
•        Water. Necessary for every process in our system.

    Depending on your age, gender, life style and needs, you will need more or less of each nutrient. For example, a girl who does intense sport every day will need more energy than someone who is older and has a sedentary life style. 

     What do you think about a kid? Do they eat the same than an adult? Think about it and we will discuss it in class. Rememeber to investigate notes we can talk about the next day.

Activity 2.

Individually, you will have to prepare a shopping list (minimum 20 items) and classify the products according to their main nutrient (some products could be in two lists). When you have finished, you will change it with a classmate and work on a food plan for you.

Welcome to everyone!

Hello to everyone, first of all, let me introduce myself...My name is Pedro Martínez and I am tutor of 4th level of Primary in our school. During this year, we will have lots of adventures and fun while learning the beautiful subject of science. It is important that all of you help to enrich the blog with comments, games and links to different sources that can help us in this new year.

The first activity that every student will have to do is to write a comment with your thoughts in the box below so I can check that everyone can contribute in OUR blog. Please, do not use capital letters and write your class number along with your comment. If you do not see your comment after writing it, do not worry! I have to approve it before it is published publicly.

In the next post, I will write the rules and guidelines that we have to follow while using this blog. If you have any doubt or suggestion, just write it below. Looking forward to starting the blog and create some awesome stuff!!

P.S. In our classes we will do experiments like this! Check it out :)