Rivers I Crossword Puzzle

QUESTIONS LIST:

• tributary : these are small streams that carry water downhill to join together with other small streams to create a large river.
• drainage basin : this is the area below a divide from which all water drains down into the same river system.
• divide : this is high ground or a ridge that separates two drainage basins.
• watershed : this is an area from which all water flows into the same river system.
• dendritic : this drainage pattern resembles the veins of a tree leaf.
• radial : this drainage pattern is often seen on volcanic cones.
• trellis : this is the drainage pattern in which secondary streams enter a main stream at right angles.
• youth : a river in this stage cuts a deep v-shaped valley as fast-moving water transports material downstream.
• v-shaped : this is the shape of valleys created by young rivers in moist climates.
• hydropower : this is a valuable energy source derived from young rivers.
• flood plain : this area of a river valley is periodically covered with water.
• mature : a river in this stage is still causing vertical erosion, but downstream lateral erosion of its banks is evident as meanders and a flood plain start to take shape.
• old age : a river in this stage the flood plain continues to widen, extensive meandering occurs & some oxbow lakes are created.
• rejuvenated : a river in this stage is created when the land undergoes a slow uplifting, which causes the river to return to a period of vertical erosion.
• terrace : this is part of an original flood plain that has undergone uplifting.
• abrasion : this erosional action is responsible for making rocks smooth.
• attrition : this is erosional action in which rocks strike together and reduce in size.
• hydraulic : this action involves the wearing away of riverbanks by the weight & force of moving water.
• corrosion : this is dissolving of river rock by water.
• solution : this is the term for the transport of dissolved river materials.