Part E Leave the test tubes for about 24 hours. Then observe the metal strips in the test tubes again. Record your observations.

Include any evidence of a chemical reaction.

A Caution! Because your substances will be unattended, be sure they are in a safe location away from young children and

pets.

Which describes how weathering and erosion are different? weathering is caused by water. erosion is caused by wind and ice. erosion transports sediments. weathering is a natural process.

In order to study genetic mutations, scientists must study genetic material. which statement describes the genetic material scientists are most likely studying? a) they study alleles that contain chromosomes, which are rna.b) they study alleles that contain genes, which are chromosomes.c) they study chromosomes that contain genes, which are dna segments.

The wind is to parities grasses because it them