All Science Units

Explore the full collection of PreK–8 Science unit plans featuring engaging, standards-aligned lessons that build curiosity, inquiry skills, and real-world understanding.

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Grade 8 Science Units

Unit Plan 32 (Grade 8 Science): Analog vs. Digital Signals

Digitized signals using 0s and 1s are more reliable than analog because they resist noise, store well, and are easier to copy and transmit accurately.

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Grade 8 Science Units

Unit Plan 31 (Grade 8 Science): Light & the Electromagnetic Spectrum

EM waves carry energy and information through space without moving matter; students model amplitude, wavelength, and interactions like absorption, transmission, reflection.

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Grade 8 Science Units

Unit Plan 30 (Grade 8 Science): Sound Waves & Vibrations

Sound as a mechanical wave: students explore vibrations, models, and how sound transfers energy through media—without moving matter.

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Grade 8 Science Units

Unit Plan 29 (Grade 8 Science): Waves Transfer Energy

Grade 8 waves unit where students model mechanical and electromagnetic waves to show energy moves through a medium or space while matter stays in place.

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Grade 8 Science Units

Unit Plan 28 (Grade 8 Science): Intro to Waves—Properties & Patterns

Grade 8 waves unit where students use math, graphs, and patterns to describe amplitude and wavelength and explain how waves carry energy and information.

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Grade 8 Science Units

Unit Plan 27 (Grade 8 Science): Energy—Quarter Synthesis

Grade 8 capstone energy unit where students investigate energy transfer, graph kinetic and potential energy, evaluate thermal designs, and argue using data and models.

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Grade 8 Science Units

Unit Plan 26 (Grade 8 Science): Energy Data—Graphs & Patterns

Grade 8 science unit using tables, graphs, and models to compare energy patterns across motion, mechanical, and thermal systems, showing how energy changes and transfers.

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Grade 8 Science Units

Unit Plan 25 (Grade 8 Science): Energy & Particle Models

Grade 8 unit where students investigate how thermal energy changes particle motion, temperature, and state using data, particle models, and phase change explanations.

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Grade 8 Science Units

Unit Plan 24 (Grade 8 Science): Energy in Mechanical Systems

Grade 8 unit modeling how kinetic and potential energy shift in ramps, springs, and pendulums using graphs and bar models to explore mass, speed, and position.

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Grade 8 Science Units

Unit Plan 23 (Grade 8 Science): Engineering Energy Solutions

Design, build, and test devices to control thermal energy transfer, using data, scientific principles, and engineering constraints to improve performance.

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Grade 8 Science Units

Unit Plan 22 (Grade 8 Science): Energy Transfer in Systems

Grade 8 unit where students argue that changes in kinetic energy show energy is transferred within systems using collisions, friction, and motion investigations.

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Grade 8 Science Units

Unit Plan 21 (Grade 8 Science): Thermal Energy Transfer

Grade 8 NGSS unit where students investigate how mass, material, and energy transfer affect temperature change and particle motion, using data and models to explain results.

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Grade 8 Science Units

Unit Plan 20 (Grade 8 Science): Potential Energy & Position

Grade 8 science unit on modeling gravitational, elastic, and electric potential energy, showing how mass, height, and distance affect stored energy in real-world systems.

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Grade 8 Science Units

Unit Plan 19 (Grade 8 Science): Kinetic Energy & Speed

Grade 8 NGSS unit where students graph kinetic energy changes with mass and speed, using data to explain why small speed increases greatly boost energy of motion.

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Grade 8 Science Units

Unit Plan 18 (Grade 8 Science): Forces & Motion—Quarter Synthesis

Grade 8 NGSS unit where students model gravity, electromagnetism, and contact forces, using investigations and engineering design to explain how forces interact.

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Grade 8 Science Units

Unit Plan 17 (Grade 8 Science): Force Models—Graphs & Data

Grade 8 NGSS unit where students interpret motion graphs to explain how net force and mass affect changes in motion and explore kinetic energy patterns.

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Grade 8 Science Units

Unit Plan 16 (Grade 8 Science): Engineering with Forces & Motion

Grade 8 NGSS engineering unit where students design and test collision-safety systems, using data and Newton’s Third Law to evaluate competing solutions.

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Grade 8 Science Units

Unit Plan 15 (Grade 8 Science): Magnetism & Electromagnets

Grade 8 NGSS unit where students investigate how electric currents create magnetic fields using circuits, compasses, and electromagnets to collect evidence.

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Grade 8 Science Units

Unit Plan 14 (Grade 8 Science): Electric Forces & Charge

Grade 8 NGSS unit where students use data to ask testable questions about factors that affect electric and magnetic force strength, like distance, charge, and orientation.

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Grade 8 Science Units

Unit Plan 13 (Grade 8 Science): Balanced & Unbalanced Forces

Grade 8 NGSS unit investigating how net force and mass determine changes in motion using force diagrams, motion data, and student-designed experiments.

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Grade 8 Science Units

Unit Plan 12 (Grade 8 Science): Gravity & Gravitational Interactions

Grade 8 NGSS unit where students argue from evidence that gravitational interactions are always attractive and depend on mass, using everyday and space science examples.

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Grade 8 Science Units

Unit Plan 11 (Grade 8 Science): Newton’s Third Law in Action

Grade 8 NGSS unit using Newton’s Third Law to design devices that harness equal and opposite force pairs to move or control the motion of two interacting objects.

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Grade 8 Science Units

Unit Plan 10 (Grade 8 Science): Newton’s Laws—Motion Basics

Grade 8 NGSS unit where students use force diagrams and motion graphs to show how changes in motion depend on net force and mass through hands-on investigations.

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Grade 8 Science Units

Unit Plan 9 (Grade 8 Science): Matter & Interactions—Quarter Synthesis

Grade 8 NGSS unit integrating atoms, molecules, reactions, mass conservation, and thermal energy with engineering design to model and solve real-world systems.

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Grade 8 Science Units

Unit Plan 8 (Grade 8 Science): Designing Thermal Devices

Grade 8 NGSS engineering unit where students design, build, test, and improve devices that absorb or release thermal energy using particle models and data.