Weathering is the process that breaks solid rock into pieces of rock called sediment and into ions dissolved in water and can involve physical and/or chemical processes. All rocks eventually crumble and break down by the processes of weathering at
the surface of the Earth. All rocks do not break down at the same rate, however, and the difference in rates of weathering are
the result of environmental conditions as well as the composition of the rocks.
Students collected rocks from the four areas marked in the photo. The only condition was rock size: rocks should range from
tennis ball size to soft ball size. Students recorded location of rocks as well as all visible characteristics.

Proteins are the workhorses of the cell, controlling virtually every reaction within as well as providing structure and serving as signals to other cells. proteins are long chains of  amino acids  , and the exact sequence of the amino acids determines the final structure and function of the protein. instructions for that sequence are encoded in  genes  . to make a particular protein, a messenger ribonucleic acid (mrna) copy is made from the gene (in the process called  transcription  ), and the mrna is transported to the  ribosome  . protein synthesis, also called  translation  , begins when the two ribosomal subunits link onto the mrna. this step, called initiation, is followed by elongation, in which successive amino acids are added to the growing chain, brought in by transfer rnas (trnas). in this step, the ribosome reads the  nucleotides  of mrna three by three, in units called  codons  , and matches each to three nucleotides on the trna, called the anticodon. finally, during termination, the ribosome unbinds from the mrna, and the  amino acid  chain goes on to be processed and folded to make the final, functional protein

Bis the