Content: Use of models, The Particle model and changes of state, Planning, following, and recording investigations,  Solutions, solubility, and concentration, Content Standards: Scientists use models to explain phenomena., The particle model explains the properties of solids, liquids, and gases and the processes involved in changes of state., Diagrams and flowcharts are very useful in demonstrating and explaining the motion and arrangement of particles during changes of state., There are specific processes for planning, conducting, and recording scientific investigations., The properties of solutions such as solubility and reaction to litmus determine their use, Learning Competencies: recognize that scientists use models to explain phenomena that cannot be easily seen or detected;, describe the Particle Model of Matter as All matter is made up of tiny particles with each pure substance having its own kind of particles, describe that particles are constantly in motion, have spaces between them, attract each other, and move faster as the temperature increases (or with the addition of heat);, use diagrams and illustrations to describe the arrangement, spacing, and relative motion of the particles in each of the three states (phases) of matter;, explain the changes of state in terms of particle arrangement and energy changes: a. solid → liquid → vapor, and b. vapor → liquid → solid;, follow appropriate steps of a scientific investigation which includes: a. Aim or problem, b. Materials and equipment, c. Method or procedures, d. Results including data, and e. Conclusion., make accurate measurements using standard units for physical quantities and organize the collected data when carrying out a scientific investigation;, identify the role of the solute and solvent in a solution;, express quantitatively the amount of solute present in a given volume of solvent;, demonstrate how different factors affect the solubility of a solute in a given solvent, such as heat;, identify solutions, which can be found at home and in school and that react with litmus indicator, as acids, bases, and salts; and, demonstrate proper use and handling of science equipment,

GRADE 7 – QUARTER 1: SCIENCE OF MATERIALS

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