7.PS1: Matter and Its Interactions

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

Dehydration Synthesis

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

Chemical 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

7.PS1.6: Construct, test, and modify a device that releases or absorbs thermal energy by chemical processes to solve a problem.

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.

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

7.PS3.2: Develop a model to describe that when objects interacting at a distance change their arrangement, different amounts of potential energy are stored in the system.

Energy Conversion in a System
Energy of a Pendulum
Inclined Plane - Sliding Objects
Potential Energy on Shelves
Roller Coaster Physics
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.

Air Track
Energy Conversion in a System
Sled Wars

7.LS1: From Molecules to Organisms: Structure and Function

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
Food Chain
Photosynthesis Lab
Plants and Snails
Pond Ecosystem

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

Cell Energy Cycle
Dehydration Synthesis
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 - Metric

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
Forest Ecosystem
Pond Ecosystem
Prairie Ecosystem

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
Coral Reefs 2 - Biotic Factors
Food Chain
Forest Ecosystem
Pond Ecosystem
Prairie Ecosystem

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 - Metric

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

GMOs and the Environment

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 human impact on the environment.

GMOs and the Environment

7.ESS3.4: Construct an argument supported by evidence for how increases in human population and per-capita consumption of natural resources impact Earth’s systems.

Carbon Cycle
Coral Reefs 2 - Biotic Factors

7.ESS3.5: Obtain, evaluate, and communicate evidence of the factors that have caused changes in global temperatures over the past century.

Carbon Cycle
Greenhouse Effect - Metric