What time of day would you expect to see a first quarter moonrise?

How can scientists test their ideas about the origin of the universe if they can't physically interact with or study?

When new rock is added to an oceanic ridge, the magnetized strips on either side of the ridge are evidence of sea-floor spreading. this is because the rocks on the two sides of the ridge o are equal in width and in polarity are polar opposites oare magnetized vary in width but are equal in polarity

What are the student's observations and inferences before he starts his investigation?