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Showing 10 results from a total of 970

Understand issue25metrology
| Issue 25

Weighing up the evidence: what is a kilo?

​We all know what a kilogram is – or do we? Researchers worldwide are working to define precisely what this familiar unit is.

Ages: 11-14, 14-16, 16-19;
Topics: Physics, Chemistry
       

Understand issue25orthodontics
| Issue 25

The changing face of orthodontics

Many of us have had our teeth straightened with braces. Few people know, however, that orthodontics involves a great deal of fundamental science and fast-moving technology.

Ages: 16-19;
Topics: Biology, Health
       

Teach issue25ocean
| Issue 25

Movers and shakers: physics in the oceans

Contrary to the popular saying, deep waters are often far from still – which is just as well for marine life. Activities using simple water tanks are a good way to find out about the physics at work beneath the waves.

Ages: 11-14, 14-16, 16-19;
Topics: Physics, Earth science
         

Understand issue25soap
| Issue 25

Magnetic science: developing a new surfactant

With the use of detergents and other surfactants on the rise, the resulting pollution is worrying. One answer: surfactants that can be collected and re-used simply by switching a magnetic field on and off.

Ages: 16-19;
Topics: Chemistry
       

Understand issue25periodic
| Issue 25

The numbers game: extending the periodic table

Until a few centuries ago, people believed that the world was made only of earth, air, water and fire. Since then, scientists have discovered 118 elements and the search is on for element 119.

Ages: 14-16, 16-19;
Topics: Physics, Chemistry