QUES: Surely, you have noticed the tall poles along the roadside. Do you know what is on top of those poles? Thats right, wires that carry electric current. These wires carry electric current to your home. But what is electric current? Electric current is actually the flow of electrons. You may recall, an electron is the outer-most particle in an atom. They have a negative charge. Electricity is the continuous flow of these particles. Electrons are able to move through wires. Their speed can even be measured. The SI unit for electric current (or speed) is the ampere (A). Ampere is often shortened to amp. Electric current may flow in just one direction, or it may keep reversing direction. Direct current (DC) flows in only one direction. Direct current is what is used in devices like flashlights. Alternating current (AC) flows in two directions. This is the type of current that flows into your home through wires.
Do you have any questions?
MY QUESTION: What kind of charge does an electron have?

QUES: Rivers flowing over gentle slopes move more slowly. They move much more slowly than a mountain stream. These slow moving streams create different types of features than mountain streams. Slow moving water erodes the sides of their channels more than the bottom. Also, large curves in the stream form. These curves are called meanders. Meanders are caused by erosion and deposition. Remember, faster moving water causes erosion more quickly. Slower moving water erodes material more slowly. If water is moving slowly enough, the sediment being carried may settle out. This settling out, or dropping off, of sediment is deposition. The curves are called meanders because they slowly wander over the land. As meanders erode from side to side, they create a floodplain. This is a broad, flat area on both sides of a river. Eventually, a meander may become cut off from the rest of the river. This forms an oxbow lake.
Do you have any questions?
MY QUESTION: What type of stream can create deposition?

QUES: Ace , a wannabe rock star , is on his way to a concert of the band Guitar Wolf when space aliens invade the Earth . As a result the dead rise to their feet in the countryside setting of Asahi , Japan , with an appetite for flesh . Enlisting the help of his rock 'n roll blood brother Guitar Wolf , Ace and the members of the band get entangled in many misadventures with crazy rock managers in very tight shorts , transsexuals , naked women shooting guns in the shower , and bloodthirsty zombies ready to tear them apart . Leather jackets , loud over-modulated music , laser guitar picks , motorcycles , guns , muscle cars , and fire abound . Guitar Wolf , a Japanese trio signed to Matador Records in the US and self-proclaimed coolest rock band in the world star as the well-coiffed heroes . It is also a love story , between Ace and Tobio , a trans woman . The music , in a garage punk vein , plays an important role in the film . It features music from Greg Cartwright of Reigning Sound and The Oblivians . His 1997 song '' Twice as Deep '' by Greg Oblivian & the Tip Tops is featured . This film is similar to another movie by a Spanish punk group , La matanza can bal de los garrulos lis rgicos produced by Siniestro Total
Do you have any questions?
MY QUESTION: Who played the music in '' Twice as Deep ''?

QUES: Fossils can be used to match up rock layers. As organisms change over time, they look different. Older fossils will look different than younger fossils. Some organisms only survived for a short time before going extinct. Knowing what organisms looked like at certain times also helps date rock layers. Some fossils are better than others for this use. The fossils that are very distinct at certain times of Earths history are called index fossils. Index fossils are commonly used to match rock layers. You can see how this works in Figure 2.30. If two rock layers have the same index fossils, then they're probably about the same age.
Do you have any questions?
MY QUESTION:
What kind of fossils are used to date rock layers?