Grade 7 Science Q1 - Materials
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This hands-on course introduces the Particle Model to explain solids, liquids, gases, and changes of state, then explores solutions, concentration, and factors affecting solubility. Learners practice scientific investigation steps, accurate measurement, and simple acidity tests with real materials. By the end, students gain conceptual understanding and practical lab skills for further science study.
Meet Your Instructors
What you'll learn
- Recognize that scientists use models to explain phenomena that cannot be easily seen and describe that all matter is made up of tiny particles.
- Describe the four main postulates of the Particle Model of Matter and use diagrams to illustrate the arrangement, spacing, and relative motion of particles in solids, liquids, and gases.
- Explain the changes of state (melting, boiling, freezing, and condensation) in terms of particle arrangement and the energy changes involved, such as the addition or removal of heat.
- Identify the role of the solute and solvent in a solution and express quantitatively the concentration of solute present in a given volume of solvent.
- Demonstrate and explain how different factors, specifically heat/temperature, affect the solubility of a solute in a given solvent.
- Follow the appropriate steps of a complete scientific investigation, make accurate measurements using standard units, and identify common solutions as acids, bases, or salts using a litmus indicator.