When we look at the magnetic field in ancient igneous rocks on the Earth, we find that rocks of the same age have magnetic fields that point in different directions, like the top map below. Someday in the future, scientists would like to make similar measurements on Mars. If we were to measure the magnetic fields trapped in ancient igneous rocks on Mars, scientists expect to find that the magnetic field in rocks of the same age will all point the same direction, like the bottom map. Attributions Images Strebe. Gall–Peters projection SW.jpg . (CC BY-SA 3.0). Via Wikimedia Commons.

According to this graph, what is the current trend in temperatures?

Which of these is true about melting and boiling points in materials made of covalent molecules?

On the periodic table, shown at the top of the test, where can you find atoms with the highest ionization energy?

See figure 1 in the problem above. If the single slit that produced the image at the top is made narrower, what will happen to the area of red light on the screen seen in the top image?

This family of materials is likely to have what set of properties?

Which of these statements correctly applies the 2nd law of thermodynamics (the law of increasing disorder) to an air conditioner?

How do the speed and acceleration of the hammer compare with those of the nail at any given time after they are dropped?

What is the formula for molecule 2?

When two of these positively charged styrofoam packing peanuts are brought closer to each other what happens to the electrical force between them?