Terminology and definitions Convection currents Convection currents drive the movement of Earth’s rigid tectonic plates in the planet’s fluid molten mantle. In places where convection currents rise up towards the crust’s surface, tectonic plates move away from each other in a process known as seafloor spreading. Hot magma rises to the Read more…
Stars Our Sun The sun is the nearest star to earth. The sun is a bright yellow dwarf star The sun is about 4.6 billion years old. The sun belongs to the Milky Way Galaxy. Only 8.5 light-minutes away from Earth. The sun contains 98% of all the mass of Read more…
Reactants: Reactants are the starting substances in the chemical reaction. Products: Products are the substances produced in a chemical reaction. Conservation of Mass: Chemical equations show that atoms are conserved in the reaction; this is known as the conservation of mass. Total mass of products = Total mass of reactants Read more…