Solids Liquids And Gases Lesson Plan for 7th Grade Example Students

Topic: Properties of Solids, Liquids, and Gases

Objectives & Outcomes

• Students will be able to explain the properties of solids, liquids, and gases and how they can be differentiated based on these properties.

Materials

• Solids, liquids, and gases (e.g. ice, water, boiling water, butter, gasoline)
• Permanent markers or pencils
• Paper

Warm-up

• Review the concept of states of matter and ask students to name the three states of matter (solid, liquid, gas).
• Show students a variety of solids, liquids, and gases and have them identify which state each is in.

Direct Instruction

• Review the physical characteristics of solids, liquids, and gases (e.g. solid is firm, liquid is fluid, gas is not fixed in volume or shape).
• Explain that the state of matter of a substance depends on the arrangement of its atoms and molecules.
• Demonstrate how to use a thermometer to measure the temperature of a substance, and discuss the relationship between temperature and state of matter (e.g. gas becomes liquid when its temperature is lowered, and solid becomes gas when its temperature is raised).

Guided Practice

• Have students work in pairs to use a thermometer to measure the temperature of different substances, and record their observations and calculations on the provided charts.
• As a class, discuss the different states of matter that the substances exhibit, and how this depends on their temperature.
• Challenge students to find examples of substances that are intermediate between solid, liquid, and gas (e.g. water vapor, liquid water at very low temperatures).

Independent Practice

• Have students choose one state of matter (solid, liquid, gas) to research in more detail. They should identify and -measure the properties of the state of matter that they choose, and create a poster or presentation to communicate their findings to the class.

Closure

• Review the main points of the lesson with the students, emphasizing the unique properties of each state of matter.
• Ask students to share any questions or observations that they have about solids, liquids, and gases.
• Encourage students to continue thinking about the concept of state of matter and how it affects the physical -behavior of different substances.

Assessment

• Observe students during the guided and independent practice activities to assess their understanding of the concept of state of matter and the properties of solids, liquids, and gases.
• Collect and review the students' drawings and written explanations of their experiments to assess their ability to observe and describe the characteristics of the substances.
• Administer a quiz at a later date to assess students' retention of the material.