Lesson: The States of Matter

Author: Kristin De Lucia

Area: Physical Sciences

Grade Level: 7-8


This lesson assumes no background knowledge, except that there are three states of matter: solid, liquid, and gas. This is a one- to two-session lesson designed for those who are short on time. The objective is to apply an inquiry-based approach to classic experiments to foster studentsí understanding and appreciation for the properties of matter. Students will learn the properties of the states of matter, how to calculate volume, gain practice recording and interpreting data.



1SC-E1. Identify a question, formulate a hypothesis, control and manipulate variables, devise experiments, predict outcomes, compare and analyze results, and defend conclusions

1SC-P1. Propose solutions to practical and theoretical problems by synthesizing and evaluating information gained from scientific investigations

2SC-E6. Demonstrate how Science is an ongoing process of gathering and evaluating information, assessing evidence for and against theories and hypotheses, looking for patterns, and then devising and testing possible explanations.

5SC-E1. Examine, describe, compare, measure, and classify objects and mixtures of substances based on common physical and chemical properties (e.g., states of matter, mass, volume, electrical charge, density, boiling points, pH, magnetism, solubility)

5SC-E3. Show that energy exists in many forms and can be transferred in many ways

5SC-E4. Identify and predict what will change and what will remain unchanged when matter experiences an external force or energy change (e.g., boiling a liquid; comparing the force, distance and work involved in simple machines)

			Keywords: Solid, Liquid, Gas, States of Matter
 Lesson Plans (pdf/doc)
 Worksheet (pdf/doc)