QUES: You know that friction also causes heat. Think about when you rub your hands together. It is friction that makes them warm. But why does this happen? Friction causes the molecules on rubbing surfaces to move faster. Faster moving particles have more heat energy. Heat from friction can be useful. Can you think of other places where you might find friction? Friction also lets you light a match. Heat from friction can also cause problems. It can cause a car to overheat. To reduce friction, oil is added to the engine. Oil coats the surfaces of moving parts. This coating of oil makes them slippery. When things are slippery there is less friction. Have you ever seen a sign that says, slippery when wet? This too has to do with friction. Water, like oil, can reduce friction. The wet surface may allow your shoes to slide more easily.
Do you have any questions?
MY QUESTION: What can be done to prevent friction problems in engines?

QUES: Victims of domestic violence will have access to quality legal representation through a campaign undertaken by Idaho Supreme Court Chief Justice Linda Copple Trout and corporate leaders. "Thousands of times a year, Idahoans are victims of domestic violence. The victims are often women and their children and they frequently have few resources with which to pursue their legal rights," Trout said Tuesday. "This campaign helps fill that gap in legal services for women who need the help at a time when they are in crisis." The Idaho Partners for Justice Project has already secured pledges of more than $35,000 from law firms, attorneys, corporations and individuals. The goal is $100,000. The drive to pay for free legal services will continue for the next two months. The money goes to Idaho Legal Aid Services and the Idaho Volunteer Lawyers Program. Last year, more than 5,000 petitions were filed in Idaho for protection orders in domestic violence cases. More than 12,000 victims contacted shelters or crisis hotlines. Joining Trout in the announcement was Idaho Bar Association President Fred Hoopes of Idaho Falls and Ida-West Energy Co. Chief Executive Officer Randy Hill, members of the project's executive committee. Also on hand were some women who were victims of such violence, but benefited from free legal services. Last year's campaign generated enough money and resources to help more than 450 victims. The help ranged from representation in protection order hearings to legal assistance in divorce, visitation and child support cases. The donations are tax deductible.
Do you have any questions?
MY QUESTION: Who joined the Idaho Supreme Court Justice in making the announcement?

QUES: Earths magnetic field helps protect Earth and its organisms. It protects us from harmful particles given off by the sun. Most of the particles are attracted to the north and south magnetic poles. This is where Earths magnetic field is strongest. This is also where relatively few organisms live. Another benefit of Earths magnetic field is its use for navigation. People use compasses to detect Earths magnetic north pole. Knowing this helps them tell direction. Many animals have natural 'compasses' that work just as well. Birds like the garden warbler in Figure 1.36 use Earths magnetic field. They use it to guide their annual migrations. Recent research suggests that warblers and other migrating birds have structures in their eyes. These structures let them see Earths magnetic field as a visual pattern.
Do you have any questions?
MY QUESTION: What do animals have naturally that people do not?

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:
Do meanders cause oxbow lakes?