The two main types of weathering are material and chemical.
Mechanical weathering is the disintegration of rock into smaller and smaller fragments.
Chemical weathering transforms the original material into a substance with a different composition and different physical characteristics.
This is called the pedigree chart.
At 3.5s the distance would be 10.85
Find 1/4th of 2.00 and add that to 6.2
An organism that has two different alleles for a trait is called heterogeneous
The reactivity of metals increases as you move left in a period and as you move down in a group, so Marie needs to know the period and group of the element inside each box. Boxes that show locations in groups 1 or 2 or in period 8 contain the most reactive elements.
