Welcome to Mr. Kremer Science, a collection of free, classroom-ready science resources designed for middle school and high school students.
This site supports biology, environmental science, chemistry, and Earth systems with clear explanations, visual models, and curriculum-aligned materials.
Whether you’re a student reviewing key concepts or a teacher planning lessons, you’ll find organized, standards-based science content built for understanding — not memorization.
Explore Science Topics
Each section below focuses on core science topics commonly taught in middle school, high school, and the IB MYP and DP. Resources include diagrams, videos, presentations, summaries, guiding questions, and review materials to support learning at different levels.
IB Environmental Systems and Societies (IB ESS)
Resources for teaching and learning about the new ESS syllabus offered at both standard level (SL) and higher level (HL), with first examinations scheduled for 2026. Topics include ecosystems, sustainability, climate systems, water, soils, biogeochemical cycles, natural resources, and human impacts on the environment.
Biology
Resources covering cell structure, genetics, evolution, ecology, and human systems, with an emphasis on cause-and-effect relationships and real-world applications.
Chemistry
Concepts such as matter, reactions, energy changes, and atomic structure, explained in a student-friendly way.
Physics
Explore phenomena such as motion, forces, electricity, energy, light, and sound.
Built for Students and Teachers
All content on this site is designed to be:
- Clear and concept-focused
- Aligned with common secondary science curricula (MYP, NGSS)
- Easy to use in classrooms or for independent study
- Free and accessible without sign-ups
Teachers can use these materials to support instruction, while students can use them for review, exam prep, or deeper understanding.
Why Concept-Based Science Matters
Science learning is strongest when students understand how systems work, not just isolated facts. These resources emphasize:
- Systems thinking
- Real-world examples
- Visual models
- Connections between topics
This approach supports long-term understanding and success in advanced science courses.
Start Exploring
Browse the topic sections above to explore environmental science, biology, chemistry, physics, and Earth systems resources designed to support learning, curiosity, and scientific thinking.
You’ll find resources I think are valuable for students, guidance on writing science lab reports, creating data tables and graphs for data analysis, and developing presentations to effectively communicate about science. You’ll also find a list of digital resources for science.
Digital Resources for Science
I began curating this list of science resources years ago, sometime in the early 2010’s. I save and bookmark sites, videos, simulators, and news articles about the environment and sustainability almost daily, but there’s just no way to keep up with it all. That means several URLs are probably broken by now. The volume of new resources geared toward science education is simply overwhelming.
How to write MYP science reports
I’ve used checklists. I’ve created formative tasks focused on one assessment strand at a time. I’ve made templates with clear headings and explanatory paragraphs. I’ve also designed heavily scaffolded worksheets for English Language Learners. In the end, most of my students seem to rely on this visual explanation of how to write lab reports in MYP sciences. So here it is.
How to Create Scientific Tables and Graphs
Visual models and exemplars are often the easiest and most effective ways to show students how to produce something.
How to Effectively Communicate Scientific Knowledge
I’ve shared this presentation with students for years. I think it’s the clearest, most concise guide to visual presentations I’ve ever encountered. Death to ‘death by PowerPoint!’
Happy learning!
Mr K
MrKremerScience.com 
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