1ST TERM NATURAL SCIENCE

 

SUMMARY OF ALL THE CONTENTS WE ARE GOING TO STUDY

 

DIGESTIVE SYSTEM:

This system breaks down food into smaller substances that our body uses to give us energy. It also eliminates waste.

RESPIRATORY SYSTEM:

Our body uses oxygen to get energy from the nutrients. The respiratory system lets us inhale oxygen. It expelss carbon dioxide from the body. 

CIRCULATORY SYSTEM:

This system carries blood with oxygen and nutrients to all parts of the body. It collects waste substances and carbon dioxide too.

EXCRETORY SYSTEM:

This system cleans the blood of waste products in the form of urine and sweat. It eliminates them from the body. 

Our body uses oxygen to get energy from the nutrients. The respiratory system lets us inhale oxygen. It expells carbon dioxide from the body. 

    

 

     

PARTS OF THE RESPIRATORY SYSTEM

DEFINITIONS

 

 

CIRCULATORY SYSTEM:

This system carries blood with oxygen and nutrients to all parts of the body. It collects waste substances and carbon dioxide too.

  

 

CIRCULATORY SYSTEM

 CIRCULATORY SYSTEM DEFINITIONS

DIGESTIVE SYSTEM:

This system breaks down food into smaller substances that our body uses to give us energy. It also eliminates waste.

   

 

PARTS OF THE DIGESTIVE SYSTEM

 

DIGESTIVE SYSTEM

 

EXCRETORY SYSTEM:

This system cleans the blood of waste products in the form of urine and sweat. It eliminates them from the body. It consists of:

1. The urinary system that produces urine

2. The sweat grands that are in our skin produce sweat 

  

PARTS OF THE EXCRETORY SYSTEM

 EXCRETORY SYSTEM

 

Reproduction allows living things to make new living thing. Reproduction is essential for the continuity of life. 

Reproduction occurs when male and female cells combine and make one cell.

PARTS OF THE FEMALE  REPRODUCTIVE SYSTEM

PARTS OF THE MALE  REPRODUCTIVE SYSTEM

 

 

The function of interaction includes: the locomotor sytem , the sense organs and the nervous systems.

SENSE ORGANS

LOCOMOTORY SYSTEM : Skeleton, joints and muscles. Ligaments connect the bones at joints. Tendons connects muscles and bones.

NERVOUS SYSTEM :  Brain, spinal cord and nerves.

Skeleton, joints and muscles. 

Ligaments connect the bones at joints.

 

  

 

   

 

 

Tendons connects muscles and bones.

MAIN BONES OF OUR BODY

                   

MAIN  MUSCLES OF OUR BODY

   

The nervous system consists of the brain, spinal cord and the nerves. 

  

  

 

To stay healthy , we must eat a balanced diet, have a good personal hygiene, get a good night´s sleep and do regular exercise. 

   

Well-being means feeling healthy and happy and being able to function well at school and at home. 

 

    

We are all different but we are all equal.