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

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

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

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?

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

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

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?

How does the gravitational force on the hammer compare with that on the nail?