Given the fact that:  As the amount of water increases, the melting point of rock decreases.  Answer the question:   Ian is trying to melt rocks, nothing that the water around the rocks is quite high. Since there is a lot of water around the rocks, the melting point of the rock will be increased or decreased?
decreased

Given the fact that:  In electromagnetic waves with higher frequencies, photons have more energy.  Answer the question:   Don is looking at electromagnetic waves, and sees that the one's he observing have lower frequencies. Don is able to know then that the photons have energy that is higher or lower?
lower

Given the fact that:  At higher concentrations, particles of reactants are crowded closer together, so they are more likely to collide and react.  Answer the question:   DJ has a solution that he adds particles to. The solution is now a higher or lower concentration?
higher

Given the fact that:  In transipration, at warmer temperatures water molecules move faster, and the rate of evaporation from stomata is therefore much faster.  Answer the question:   If Mary decreased the temperature in her greenhouse what would happen to the rate of evaporation from water on her plants it would increase or it would decrease??
it would decrease?