Area of a Rectangle: 2 Videos
Video 1: Area of a rectangle
Video 2: Examples pertaining to areas of rectangles
Video 1: Area of a rectangle
Video 2: Examples pertaining to areas of rectangles
Video 1: Area of a triangle
Video 2: Examples pertaining to the area of triangles
Video 3: Common mistakes made when calculating the area of a triangle
Note: Click on the 'back button' to return to the VLE after watching each video
These three short online lessons discuss asteroids, comets and meteors.
The Earth behaves like a giant bar magnet and as such there is a magnetic field present around it. The Earth’s magnetic field is thought to be caused by flowing liquid metals in the outer core of the planet which causes electric currents and a magnetic field.
Other objects in the solar system are discussed in this online textbook viz. asteroids, meteorites, comets and dwarf planets.