United States · Common Core State Standards
8th Grade Science
A comprehensive inquiry into the physical laws and biological systems that govern the natural world. Students engage in hands-on modeling and data analysis to understand the interconnectedness of Earth and space sciences.
01The Architecture of Matter
Students investigate the subatomic and molecular structures that define the physical properties of substances. This unit focuses on how energy changes the state and behavior of matter.
Students will analyze historical atomic models and identify the properties of protons, neutrons, and electrons.
Students will classify matter as elements, compounds, or mixtures based on their composition and properties.
Students will explore the organization of the periodic table and identify trends in element properties.
Students will observe and identify indicators that a chemical reaction has occurred, such as gas production or temperature change.
Students will investigate the principle of conservation of mass in chemical reactions through experimentation and data analysis.
Students will compare and contrast exothermic and endothermic reactions, focusing on energy transfer.
Students will explore the kinetic molecular theory to explain the behavior of particles in different states of matter.
Students will investigate the energy changes associated with phase transitions (melting, freezing, boiling, condensation).
Students will examine the mechanisms of heat transfer: conduction, convection, and radiation.
Students will investigate the concepts of density and buoyancy and their applications.
Students will explore the properties of solutions and factors affecting solubility.
Students will identify and compare the properties of acids and bases using indicators.
02Forces, Motion, and Interactions
This unit examines the laws of physics that govern movement and the invisible fields that exert force across distances.
Students will investigate Newton's First Law of Motion and its application to objects at rest and in motion.
Students will apply Newton's Second Law to calculate force, mass, and acceleration in various scenarios.
Students will explore Newton's Third Law of Motion and identify action-reaction pairs in everyday situations.
Students will investigate the factors affecting gravitational force and its role in the solar system.
Students will explore the properties of electric and magnetic fields and their interactions.
Students will investigate the relationship between electricity and magnetism by constructing and testing electromagnets.
Students will identify and describe various forms of energy, including mechanical, thermal, electrical, and chemical.
Students will calculate and compare different types of potential energy, such as gravitational and elastic.
Students will investigate the relationship between an object's mass, velocity, and kinetic energy.
Students will apply the law of conservation of energy to analyze energy transformations in various systems.
03Waves and Information Transfer
Students explore the properties of mechanical and electromagnetic waves and how they are used in modern communication.
Students will differentiate between transverse and longitudinal waves and identify examples of each.
Students will measure and describe the amplitude, wavelength, and frequency of various waves.
Students will investigate the properties of sound waves, including pitch, loudness, and speed.
Students will identify and describe the different regions of the electromagnetic spectrum.
Students will investigate how light interacts with different materials through reflection and refraction.
Students will explore how materials absorb and transmit light, leading to the perception of color.
Students will examine the characteristics and limitations of analog signals in communication.
Students will explore how digital signals encode and transmit information, focusing on their advantages.
Students will investigate various technologies that utilize waves for information transfer, such as fiber optics and wireless communication.
04Genes and Molecular Biology
An investigation into how organisms grow, reproduce, and pass traits to the next generation through genetic coding.
Students will examine the process of mitosis and its role in growth and asexual reproduction.
Students will investigate meiosis and its role in producing genetic variation through sexual reproduction.
Students will apply Mendelian genetics principles to predict inheritance patterns using Punnett squares.
Students will explore the structure of DNA and its role as the blueprint for life.
Students will investigate how genes provide instructions for building proteins.
Students will examine different types of mutations and their potential impact on protein function and traits.
Students will compare and contrast natural selection with artificial selection, identifying driving forces.
Students will investigate examples of selective breeding in crops and livestock and its impact on food production.
Students will explore modern biotechnology techniques, including genetic engineering, and their applications.
05Earth's Place in the Universe
Exploring the scale of the solar system and the predictable patterns caused by the motion of celestial bodies.
Students will investigate the nebular hypothesis and the processes that led to the formation of our solar system.
Students will compare and contrast the characteristics of planets and dwarf planets in our solar system.
Students will identify and describe the characteristics and origins of minor bodies in the solar system.
Students will explain the phenomena caused by Earth's rotation and revolution, including day/night and year.
Students will investigate how Earth's axial tilt and orbit cause the seasons.
Students will explain the phases of the moon and the occurrence of solar and lunar eclipses.
Students will interpret the geological time scale and major events in Earth's history.
Students will investigate the rock cycle and use principles of relative dating to determine the age of rock layers.
Students will interpret fossil evidence to understand past environments, life forms, and mass extinction events.
06Human Impact and Earth Systems
Examining how human activities affect Earth's natural resources and global climate systems.
Students will classify natural resources as renewable or non-renewable and discuss their importance.
Students will investigate the geological processes that lead to the uneven distribution of natural resources.
Students will explore strategies for sustainable resource management and conservation.
Students will investigate the theory of plate tectonics and its role in causing earthquakes.
Students will examine the formation of volcanoes and tsunamis in relation to plate tectonics.
Students will explore engineering solutions and preparedness strategies for natural hazards.
Students will investigate the components of Earth's climate system and natural climate drivers.
Students will examine the greenhouse effect and how human activities enhance it.
Students will analyze scientific evidence for climate change and its environmental and societal impacts.
Students will investigate various engineering solutions and policy approaches to address climate change.