When can a solar eclipse occur?

A ___________ eclipse occurs when the moon moves into the shadow of the Earth during the night time hours, this eventually blocks the view of the moon from the Earth.

What patterns does NASA use to organize and analyze data from other solar systems to find habitable planets?

Which of the following is true about magnetism and electricity?

In ferromagnetic materials, smaller groups of atoms band together into areas called …

What effect does the needle being pushed in different directions by the grooves as the record spins have?

What is the difference between a magnet and being magnetic?

Grasshoppers make sounds by rubbing their wings together. They can also make sounds by popping their wings which causes their veins to stiffen. Which of the following comparisons of the two methods grasshoppers use to make sounds are true?

The wavy structure of the grooves causes the needle to be pushed in different directions as the record spins. 

How does the structure of the record result in different sounds being produced?