Larger alkenes have lower boiling and melting points.  Mark is boiling alkenes and wants to see which will boil first; the larger ones or the smaller ones. The alkenes that will boil first are the ones that are smaller or larger?
larger

Water also gets colder as you go deeper.  Going deeper into water will result in a warmer or colder temperature?
colder

When there are more sunspots the Sun is more active and there are more solar storms and more of the Sun's energy reaches the Earth.  Mary loves to observe the Sun. If she's looking at the Sun one day and notices less sunspots then she usually sees, what is happening to the amount of solar energy reaching the Earth increasing or decreasing?
decreasing