Sally Ride Science (Firm)

Rocks are found everywhere on Earth and come in various sizes, shapes, colors, and textures. Some can be used to build roads, while others are used for making jewelry and glass. Rocks like coal can make electricity to heat buildings. Rocks can also hold fossils, which tell scientists about life long ago. Rocks can even help keep people healthy through vitamins and minerals.

An introduction to the life of Antoine Lavoisier, the founder of modern chemistry.

Hippocrates is known as the father of medicine. He separated religion from medicine and tried to find scientific reasons for why people became ill. By observing a patient's symptoms he was often able to diagnose illnesses and find cures. He encouraged his patients to take care of their bodies and urged fellow doctors to practice good hygiene and have a positive bedside manner. He founded a medical school in Greece to share his knowledge of medicine...

An introduction to the life and career of the eminent German- American physicist Albert Einstein.

Earth's crust is always moving and changing. It is made up of many individual pieces, called plates, which move and collide, pushed and pulled by molten magma under the planet's surface. The movement of these plates creates landforms such as mountains and trenches, and causes natural phenomena such as volcanoes and tsunamis.