This video explains why astronauts float. The common misconception is that there is no gravity in space, yet the astronaut is in the Earth’s gravitational field.  Rather, the astronaut is falling towards the Earth (as is the spacecraft). However, their horizontal speed is 28,000km/hr. This and the curvature of the...

This animated clip investigates the idea of orbits. It begins with Alice and Bob wondering why the Moon doesn’t fall to the Earth but an apple does. Alice throws an apple hard enough that it goes into orbit around the Earth. This clip could provide a lead in to topics such as gravitational force, acceleration,...

Geosciences, or geology, are the scientific study of the structure, evolution and dynamics of the earth and its natural resources. A Levels: Biology, Geology, Chemistry

This video begins by showing how reducing the pressure above water reduces its boiling point (it boils at RT).  This is because the water molecules require less energy to escape into the atmosphere above it. It also shows that as the most energetic molecules boil, the liquid is left with less energetic molecules...

Karsten works at the University of Leeds as a scientific researcher, in the School of Earth and Environment.  He uses images taken by satellites to look the movement of structures such as railways, roads and gas lines.  He also examines the movement of the Earth due to volcanic eruptions and earthquakes. ...

Sanjeev Gupta is a geologist who uses his understanding of rocks and physical processes such as plate tectonics, mountain building, deposition of sediment and erosion by water to understand how particular landscapes were formed from remote deserts, under the sea in the English Channel and on Mars!

He came to...