| A | B |
| Chemistry | is the study of matter |
| Mass | is a measure of how much matter there is |
| Energy | is a system’s ability to change or create change in other systems. |
| Scientific Method | is a method of problem-solving based on: observing, collecting data, forming a hypothesis, testing hypotheses, and forming a conclusion. |
| hypothesis | is an educated guess that answers a scientific question. |
| Law of Conservation of Energy | energy can never be created or destroyed just converted from one form into another. |
| Theory | is a possible explanation of observation supported by evidence. |
| phases of matter | are solids, liquids, and gases |
| matter | is everything that has mass and takes up space |
| observation | uses your five senses to collect evidence or numerical data, measuring, experimenting, communicating, ask a question |