7th grade Science worksheets

Grades 6, 7, 8

• MS-PS1-1Develop models to describe the atomic composition of simple molecules and extended structures.
• MS-PS1-2Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.
• MS-PS1-3Gather and make sense of information to describe that synthetic materials come from natural resources and impact society.
• MS-PS1-4Develop a model that predicts and describes changes in particle motion, temperature, and state of a pure substance when thermal energy is added or removed.
• MS-PS1-5Develop and use a model to describe how the total number of atoms does not change in a chemical reaction and thus mass is conserved.
• MS-PS1-6Undertake a design project to construct, test, and modify a device that either releases or absorbs thermal energy by chemical processes.
• MS-PS2-1Apply Newton's Third Law to design a solution to a problem involving the motion of two colliding objects.
• MS-PS2-2Plan an investigation to provide evidence that the change in an object's motion depends on the sum of the forces on the object and the mass of the object.
• MS-PS2-3Ask questions about data to determine the factors that affect the strength of electric and magnetic forces.
• MS-PS2-4Construct and present arguments using evidence to support the claim that gravitational interactions are attractive and depend on the masses of interacting objects.
• MS-PS2-5Conduct an investigation and evaluate the experimental design to provide evidence that fields exist between objects exerting forces on each other even though the objects are not in contact.
• MS-PS3-1Construct and interpret graphical displays of data to describe the relationships of kinetic energy to the mass of an object and to the speed of an object.
• MS-PS3-2Develop a model to describe that when the arrangement of objects interacting at a distance changes, different amounts of potential energy are stored in the system.
• MS-PS3-3Apply scientific principles to design, construct, and test a device that either minimizes or maximizes thermal energy transfer.
• MS-PS3-4Plan an investigation to determine the relationships among the energy transferred, the type of matter, the mass, and the change in the average kinetic energy of the particles as measured by the temperature of the sample.
• MS-PS3-5Construct, use, and present arguments to support the claim that when the kinetic energy of an object changes, energy is transferred to or from the object.
• MS-PS4-1Use mathematical representations to describe a simple model for waves that includes how the amplitude of a wave is related to the energy in a wave.
• MS-PS4-2Develop and use a model to describe that waves are reflected, absorbed, or transmitted through various materials.
• MS-PS4-3Integrate qualitative scientific and technical information to support the claim that digitized signals (sent as wave pulses) are a more reliable way to encode and transmit information.
• MS-LS1-1Conduct an investigation to provide evidence that living things are made of cells, either one cell or many different numbers and types of cells.
• MS-LS1-2Develop and use a model to describe the function of a cell as a whole and ways parts of cells contribute to the function.
• MS-LS1-3Use argument supported by evidence for how the body is a system of interacting subsystems composed of groups of cells.
• MS-LS1-4Use argument based on empirical evidence and scientific reasoning to support an explanation for how characteristic animal behaviors and specialized plant structures affect the probability of successful reproduction of animals and plants respectively.
• MS-LS1-5Construct a scientific explanation based on evidence for how environmental and genetic factors influence the growth of organisms.
• MS-LS1-6Construct a scientific explanation based on evidence for the role of photosynthesis in the cycling of matter and flow of energy into and out of organisms.
• MS-LS1-7Develop a model to describe how food is rearranged through chemical reactions forming new molecules that support growth and/or release energy as this matter moves through an organism.
• MS-LS1-8Gather and synthesize information that sensory receptors respond to stimuli by sending messages to the brain for immediate behavior or storage as memories.
• MS-LS2-1Analyze and interpret data to provide evidence for the effects of resource availability on organisms and populations of organisms in an ecosystem.
• MS-LS2-2Construct an explanation that predicts patterns of interactions among organisms across multiple ecosystems.
• MS-LS2-3Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.
• MS-LS2-4Construct an argument supported by empirical evidence that changes to physical or biological components of an ecosystem affect populations.
• MS-LS2-5Evaluate competing design solutions for maintaining biodiversity and ecosystem services.
• MS-LS3-1Develop and use a model to describe why structural changes to genes (mutations) located on chromosomes may affect proteins and may result in harmful, beneficial, or neutral effects to the structure and function of the organism.
• MS-LS3-2Develop and use a model to describe why asexual reproduction results in offspring with identical genetic information and sexual reproduction results in offspring with genetic variation.
• MS-LS4-1Analyze and interpret data for patterns in the fossil record that document the existence, diversity, extinction, and change of life forms throughout the history of life on Earth under the assumption that natural laws operate today as in the past.
• MS-LS4-2Apply scientific ideas to construct an explanation for the anatomical similarities and differences among modern organisms and between modern and fossil organisms to infer evolutionary relationships.
• MS-LS4-3Analyze displays of pictorial data to compare patterns of similarities in the embryological development across multiple species to identify relationships not evident in the fully formed anatomy.
• MS-LS4-4Construct an explanation based on evidence that describes how genetic variations of traits in a population increase some individuals' probability of surviving and reproducing in a specific environment.
• MS-LS4-5Gather and synthesize information about the technologies that have changed the way humans influence the inheritance of desired traits in organisms.
• MS-LS4-6Use mathematical representations to support explanations of how natural selection may lead to increases and decreases of specific traits in populations over time.