The Manhattan Project
The Manhattan Project was the code name of a government program to develop an atomic bomb during World War II.
Air Pollution
Air pollution, as we know it today, started with the Industrial Revolution in Europe in the 19th century. In the last few decades, it has become the major problem for our environment.
Refugees
Refugees are people who have fled from their country because of wars, political or religious conflicts, or because they fear persecution from governments.
First Aid
First aid is the help that you give someone quickly after they have hurt themselves or have had an accident. It can stop a person from becoming more ill. In some cases, it can even save a person’s life.
The International Space Station
The International Space Station is a man-made object that orbits the Earth at an altitude of about 400 km. It serves as a laboratory for scientific experiments in many fields.
Cities
A city is a place where thousands or even millions of people live together in a small space. Cities are much larger and more important than towns or villages. Today, about more than half of the world’s population live in cities. Contents of this module (32 pages) Preview the whole module