7-PS1: Matter and Its Interactions

7-PS1-1: Develop models to describe the atomic composition of simple molecules and extended structures.

Chemical and Physical Changes

7-PS1-2: Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.

Chemical Changes
Chemical and Physical Changes

7-PS1-5: Develop and use a model to describe how the total number of atoms does not change in a chemical reaction and thus mass is conserved.

Balancing Chemical Equations
Chemical Changes
Chemical Equations
Chemical and Physical Changes

7-PS1-6: Undertake a design project to construct, test, and modify a device that either releases or absorbs thermal energy by chemical processes.

Feel the Heat

7-PS3: Energy

7-PS3-1: Construct and interpret graphical displays of data to describe the proportional relationships of kinetic energy to the mass of an object and to the speed of an object.

Energy of a Pendulum
Inclined Plane - Sliding Objects
Roller Coaster Physics
Sled Wars

7-PS3-2: Develop 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.

Energy Conversion in a System
Energy of a Pendulum
Potential Energy on Shelves
Roller Coaster Physics
Sled Wars
Trebuchet

7-PS3-5: Construct, 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.

Energy Conversion in a System
Roller Coaster Physics
Sled Wars

7-LS1: From Molecules to Organisms: Structures and Processes

7-LS1-6: Construct 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.

Cell Energy Cycle
Photosynthesis Lab
Plants and Snails

7-LS1-7: Develop a model to describe how food molecules in plants and animals are rearranged through chemical reactions forming new molecules that support growth and/or release energy as this matter moves through an organism.

Cell Energy Cycle
Digestive System

7-LS2: Ecosystems: Interactions, Energy, and Dynamics

7-LS2-1: Analyze and interpret data to provide evidence for the effects of resource availability on organisms and populations of organisms in an ecosystem.

Coral Reefs 1 - Abiotic Factors
Coral Reefs 2 - Biotic Factors
Food Chain
Forest Ecosystem
Pond Ecosystem
Prairie Ecosystem
Rabbit Population by Season
Rainfall and Bird Beaks
Rainfall and Bird Beaks - Metric
Ecosystems

7-LS2-2: Construct an explanation that predicts patterns of interactions among organisms across multiple ecosystems.

Coral Reefs 1 - Abiotic Factors
Coral Reefs 2 - Biotic Factors
Food Chain
Pond Ecosystem
Prairie Ecosystem
Ecosystems
Fruit Production

7-LS2-3: Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.

Carbon Cycle
Coral Reefs 1 - Abiotic Factors
Food Chain
Forest Ecosystem
Pond Ecosystem
Prairie Ecosystem
Ecosystems

7-LS2-4: Construct an argument supported by empirical evidence that changes to physical or biological components of an ecosystem affect populations.

Coral Reefs 1 - Abiotic Factors
Coral Reefs 2 - Biotic Factors
Food Chain
Forest Ecosystem
Pond Ecosystem
Prairie Ecosystem
Rabbit Population by Season
Rainfall and Bird Beaks
Rainfall and Bird Beaks - Metric
Ecosystems
Fruit Production

7-LS2-5: Evaluate competing design solutions for maintaining biodiversity and ecosystem services.

Fruit Production

7-ESS3: Earth and Human Activity

7-ESS3-1: Construct a scientific explanation based on evidence for how the uneven distributions of Earth’s mineral, energy, and groundwater resources are the result of past and current geoscience processes.

Carbon Cycle

7-ESS3-3: Apply scientific principles to design a method for monitoring and minimizing a human impact on the environment.

GMOs and the Environment
Water Pollution

7-ESS3-5: Ask questions to clarify evidence of the factors that have impacted global temperatures over the past century.

Carbon Cycle
Greenhouse Effect
Greenhouse Effect - Metric