Earth Systems and Spheres

A space physics sequence exploring interstellar vacuums, gravity, cosmic friction, and energy conservation across different grade bands.

An introductory physics and space science lesson for 4th graders. Students learn that space is not completely empty, gravity is everywhere, and that a moving baseball will eventually slow down and turn its motion energy into heat because of tiny collisions with space particles.

A helpful 1-page teacher guide and answer key for the 4th-grade Cosmic Friction Junior lesson. Features simple space analogies for elementary minds (such as walking through a room filled with balloons) and a complete answer key for the worksheet.

Séquence complète de sciences et technologie pour le Cycle 3 (BO 2026) explorant l'état et la constitution de la matière à l'échelle macroscopique. Les élèves étudient les trois états de la matière, la solubilité, la miscibilité, la conservation de la masse et les techniques de séparation de mélanges à travers des démarches d'investigation active.

A physics and space science lesson exploring the reality of deep space. Students learn that absolute vacuums do not exist and that motion energy in space eventually converts to thermal energy through microscopic friction, proving that energy is conserved.

An expanded and highly authentic 4th-grade student science packet. Page 1 is designed to look like an official, professional peer-reviewed scientific journal with a two-column layout, formal abstract, academic headers, detailed scientific explanations, and a 'Table 1: Key Vocabulary Definitions' block. Page 2 contains text-dependent questions and an energy flowchart.

A comprehensive five-day introductory unit designed for middle school science classes. It establishes classroom culture, teaches collaborative engineering and growth mindset, introduces the Claim-Evidence-Reasoning (CER) framework, and thoroughly covers lab safety procedures and scenario-based crisis analysis.

A middle/high school chemistry lesson exploring the states of matter, phase changes, and molecular motion using the interactive PhET simulation. Students observe particle arrangements and thermal effects firsthand.

An essential 1-page teacher reference sheet and answer key. Includes a lesson pacing plan, common middle school misconceptions (like the belief that space has zero gravity or absolute empty pockets), and complete answers for all sections of the student worksheet.

A comprehensive 5-lesson introductory science sequence for 6th and 7th graders that transitions students from thinking like scientific detectives to building like innovative engineers. Students explore the branches of science, master scientific inquiry, manipulate variables in experiment design, organize data with visual representations, and navigate the engineering design process using real-world scenarios.

An inquiry-based chemistry and hematology lesson where students apply NGSS PS1.A (characteristic physical properties) to determine whether blood plasma is a pure substance or a mixture. Students analyze physical properties data and write a Claim-Evidence-Reasoning (CER) argument.

A beautiful and authentic 2-page student worksheet. Page 1 is a mock peer-reviewed scientific journal article written for 6th graders explaining why deep space is not a perfect vacuum, why gravity is everywhere, and how a moving baseball in space eventually stops by converting its kinetic energy into thermal energy due to microscopic collisions. Page 2 is a rigorous text-dependent reading comprehension worksheet with vocabulary matching, deep-thinking questions, and an energy flow diagram.