8th grade · Science
What a 8th grade student learns in Science
Grade 8 science centers on physical science under NGSS, with students rigorously modeling the structure and interactions of matter, forces and motion (including Newton’s laws), energy conservation and transfer, and wave properties and applications, while integrating engineering design to solve related problems.
The skills for the year
- 1Developing models of atomic and molecular structure for pure substances and mixtures
- 2Using the periodic table to predict element properties and reactivity patterns
- 3Analyzing data on substance properties to identify chemical reactions versus physical changes
- 4Modeling chemical reactions at the particle level to demonstrate conservation of mass
- 5Investigating endothermic and exothermic processes and energy changes in reactions
- 6Applying Newton’s three laws to predict and explain motion in collisions and systems
- 7Calculating and analyzing net force, mass, and acceleration relationships
- 8Investigating variables that affect the strength of electric and magnetic forces
- 9Modeling gravitational force as dependent on mass and distance
- 10Explaining non-contact forces through gravitational, electric, and magnetic fields
- 11Relating kinetic energy quantitatively to an object’s mass and speed
- 12Modeling potential energy changes in systems of objects interacting at a distance
- 13Designing, building, and testing devices that minimize or maximize thermal energy transfer
- 14Investigating how energy transfer relates to mass, type of matter, and temperature change
- 15Constructing arguments for energy conservation when kinetic energy of an object changes
- 16Using mathematical representations to model wave amplitude, wavelength, frequency, and energy
- 17Developing models of wave reflection, absorption, and transmission through materials
- 18Evaluating the reliability of digitized versus analog signals for information transmission
- 19Applying the engineering design process to optimize solutions involving forces, energy, or waves
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