THE MOONS OF MARSFIND OUT MOREThe fourth planet from the Sun, Mars is one of Earth’s closest neighbours. Mars has a slight atmosphere (mainly carbon dioxide), and ice caps at the poles.…
NON-MATTERMATERIAL PROPERTIESPARTICLESFIND OUT MOREEverything you can hold, taste, or smell is made of matter. Matter makes up everything you can see, including clothes, water, food, plants,…
PENICILLIN HEALTH EDUCATION PREVENTATIVE MEDICINE DIAGNOSIS TREATMENT FIND OUT MORE
Medicine is the practice of dealing with diseases and injuries to the body. One of its most important…
FIND OUT MOREMercury is the planet closest to the Sun, and experiences scorching temperatures by day. But it has virtually no atmosphere to trap the heat, so is freezing at night. It is a…
METAL GROUPSGOLD IN QUARTZEXTRACTING GOLDMETALLIC PROPERTIESALLOYSFIND OUT MOREAlmost three-quarters of all elements are metals, such as gold and silver. There are also some elements we may not…
MAKING A MICROCHIPBIOGRAPHY: ROBERT NOYCE American, 1927-1990FIND OUT MOREMicroelectronics shrinks circuits to microscopic size. It is the power behind technology from computers to mobile phones.…
ELECTRON MICROSCOPEFIND OUT MORESome objects are so small that our eyes cannot see them. We cannot see atoms or molecules, or the cells of our bodies, or viruses that carry disease. A…
MINERAL PROPERTIES MINERALS IN ROCK CRYSTALS FIND OUT MORE
Minerals are the materials that make up the rocks of the Earth’s crust. Among thousands of different minerals, only a few,…
COMMON PARTICLESMINERAL MIXTURESPARTICLE SIZESOLUTIONSFIND OUT MOREAlmost everything is made of different substances mixed together. Things are only easy to recognize as mixtures if the PARTICLE…
VARIETY OF MOLECULESSIMPLE MOLECULECOMPLEX MOLECULEBONDINGCHANGING MOLECULESFIND OUT MOREMost atoms join up with other atoms through chemical BONDS to form larger particles called molecules. They…
