International System of Units

Find out about the origin of SI units

Coordination systems: the nervous system and the endocrine system

3.1. Coordination systems Animals have two coordination systems: the nervous system and the endocrine system. Both systems receive stimuli and create responses to them. They then transmit these…

Our Solar System - In Depth | Planets - NASA Solar System Exploration

Find out about our solar system.

Domestic System. La Revolución Industrial

Planets of the Solar System

Interactive resource that allows us to explore the Solar System.

True/False. The nervous system

Are these sentences true or false? The central nervous system consists of two organs: the brain and the spinal cord. The brain is also called the cranium. The human nervous system has two main parts:…

Circulatory system and the heart

This video helps us to understand how the circulatory system and the heart work.

Identify. The central nervous system

Write the correct number next to each part of the human nervous system: cerebellum cerebrum spinal column cranium brain spinal cord brain stem

Analyse. The English political system

Look at the diagram and answer the questions: Using the diagram to help you, explain why England was not an absolute monarchy. What is the difference between the two Houses? Who elects the Commons? Is…

Summaries - The skeletal-muscular system

1. The skeleton The skeleton is made up of bones, joints and cartilage. The skeleton supports our body and gives it shape. It also helps us to move and it protects our internal organs. Our bones are the…