which obviously have to be conductors of electricity. This is the key to how and why a battery works: one of the materials "likes" to give up electrons, the other likes to receive them. If both electrodes were made from the same material...
Types of photovoltaic solar cells Most of the solar cells you'll see on people's roofs today are essentially just silicon sandwiches, specially treated ("doped") to make them better electrical conductors. Scientists refer to these classic solar cells as first-generation, largely to differentiate ...
What TWO features of Earth protect us from some of the sun’s harmful radiation? How is energy transferred during convection? Convection occurs when particles with a lot of heat energy in a liquid or gas move and take the place of particles with less heat energy. Heat energy is transferred...