OpenSciEd Middle Grades Science Units

The OpenSciEd initiative was launched to address a critical need in science education: the need for high quality science instructional materials that are standards-aligned and practical for broad implementation. Led by BSCS Science Learning, a national consortium of curriculum developers and researchers is currently creating a three-year middle school science program to be distributed for free.

The program’s classroom materials and associated teacher professional learning materials are:

  • designed to align with the NRC Framework for K-12 Science Education and the Next Generation Science Standards (NGSS),
  • based on research on student learning and teacher practice,
  • developed in collaboration with teachers and field-tested in hundreds of classrooms in ten states across the United States,
  • open-source and locally adaptable, and
  • continuously improved based on feedback from teachers and field testing.

The first three units are now available for free download at openscied.org .

Learn more about each unit below.

Plastic cup with ice water and a straw sticking out of the lid.

This unit on thermal energy engages students in a design challenge to create a cup that keeps drinks cold longer. They identify the features that make some cups better at keeping drinks cold, and they construct their own models to explain how those features prevent the transfer of thermal energy.

In this unit for 6th grade, students build an understanding of energy transfer within and between materials based on a particle model, and they work on the practices of modeling, conducting investigations, constructing explanations, arguing from evidence, and designing solutions.


Girl in hat eating an orange slice.

This unit on metabolic reactions in the human body engages students in an investigation of a real case study of M’Kenna, a 13-year-old girl, who reported some alarming medical symptoms to her doctor. Her case sparks questions and ideas for investigations to figure out which parts of M’Kenna’s body are functioning differently from a healthy person’s system and why. Through the work of investigating M’Kenna’s symptoms, the class constructs a model to explain what happens to food after it enters people’s bodies, and they use it to explain M’Kenna’s symptoms.

In this 7th grade unit, students build an understanding of how body systems interact to process food and use the energy stored within it. They work on the practices of developing models, interpreting data, and arguing from evidence.


Hands hitting a drum.

In this unit, students investigate how sounds can cause objects at a distance to move. Motivated by a video of windows shaking when a truck outside plays loud music, students investigate what happens when an object makes sound. Over the course of the unit, they build a model that describes what happens when sounds are created that can explain the shaking windows and other examples of sounds causing objects to move.

In this 8th grade unit, students use a particle model of air to build an understanding of how sounds move that explains the effect of sounds on other objects. They work on the practices of planning and conducting investigations, using mathematical and computational thinking, and evidence-based argumentation.


The OpenSciEd Middle Grades Science Program is being released in phases. The final phase of the program will be complete in early 2022. The consortium of curriculum developers includes BSCS, Boston College, the Dana Center at The University of Texas at Austin, Digital Promise Global, Northwestern University, and a broad network of leaders in science education. This developers consortium works in close collaboration with a state steering committee  representing ten partner states from across the United States.

OpenSciEd is funded by the Carnegie Corporation of New York, Bill and Melinda Gates Foundation, Charles and Lynn Schusterman Family Foundation, and the William and Flora Hewlett Foundation.

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Download Free Middle Grades Science Units.

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Learn more about OpenSciEd's curriculum development work.