You are riding on a school bus and suddenly you get thrown forward. what did the bus just do?

Ineed with a, b, c, d, and e on the long answer

Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change

You are making a solution of calcium chloride dissolved in water. you add solid, stir, and it dissolves. you add just a spatula tip full, stir, and the solid does not dissolve. how could you describe the solutions before and after adding the spatula tip amount