About the store
I'm David Rosvally, a middle school science teacher with 24 years of classroom experience in Connecticut. I currently teach 7th grade Geology, Astronomy, Biology, and Chemistry at Weston Middle School, where my students consistently score 88% proficient and above on the NGSS 8th grade science assessment.
I originally developed all of our district's 6th and 8th grade science units from scratch — years before we adopted OpenSciEd. When OpenSciEd arrived, my curriculum became the foundation for our district's implementation. I've since trained fellow teachers across the district on NGSS-aligned assessment practices and OpenSciEd implementation.
Every resource in this store is built around the three dimensions of the NGSS — Disciplinary Core Ideas, Science and Engineering Practices, and Crosscutting Concepts — using real phenomena to drive student sensemaking. Covering all 18 middle school OpenSciEd units across grades 6–8.
Three Dimension Science assessments are built using the criteria from the Achieve NGSS Science Task Screener — the professional standard used by curriculum leaders and instructional coaches to evaluate three-dimensional science task quality. Every assessment features a novel phenomenon-based transfer scenario, integrated SEP/DCI/CCC sense-making, and a complete teacher key with scoring look-fors, common misconception guidance, and rubrics connected to all three dimensions. No recall. No plug-and-chug. Just real science thinking. Student-Tested & Approved.
Read moreStore categories
All resources
Filters
Grade
Resource type
Standard
8th Science Bundle
Stop building assessments from scratch. This bundle contains every mid-unit and end-of-unit assessment for all six 8th grade OpenSciEd units — 12 rigorous, phenomenon-based assessments aligned to the Next Generation Science Standards. ✓ Built using the criteria from the Achieve NGSS Science Task Screener — phenomenon-driven transfer scenario, integrated three-dimensional reasoning, and a complete teacher key with scoring look-fors and misconception guidance. Every assessment in this bundle uses
8th
General Science
NGSS
MS-PS2-3
, MS-PS4-1
, MS-PS1-4
+9
7th Grade Bundle
Stop building assessments from scratch. This bundle contains every mid-unit and end-of-unit assessment for all six 7th grade OpenSciEd units — 12 rigorous, phenomenon-based assessments aligned to the Next Generation Science Standards. Every assessment in this bundle uses the same design philosophy: students analyze fully illustrated scientific figures to answer every question. None of the questions can be answered from memory alone. Every assessment includes a complete teacher answer key with de
7th
General Science
NGSS
MS-LS1-5
, MS-LS1-7
, MS-LS1-2
+5
6th grade Bundle
Stop building assessments from scratch. This bundle contains every mid-unit and end-of-unit assessment for all six 6th grade OpenSciEd units — 12 rigorous, phenomenon-based assessments aligned to the Next Generation Science Standards. Every assessment in this bundle uses the same design philosophy: students analyze fully illustrated scientific figures to answer every question. None of the questions can be answered from memory alone. Every assessment includes a complete teacher answer key with de
6th
General Science
NGSS
MS-ESS2-3
, MS-ESS2-2
, MS-LS4-1
+3
Science Discussion Protocols Bundle | NGSS | OpenSciEd | Grades 6-8 | 4 Protocol
Stop fighting through one-sided whole-class discussions where the same 5 students do all the talking. This bundle gives you 4 ready-to-use, research-backed discussion protocols that work across ANY OpenSciEd unit or NGSS phenomenon-based curriculum — grades 6 through 8. Every protocol includes a complete teacher implementation guide, facilitation talk moves, and student-facing handouts in THREE differentiation tiers (Foundational, Standard, Extended) so every learner can access the discussion at
6th - 8th
Biology, Chemistry, General Science
NGSS
MS-ESS3-1
, MS-LS4-1
, MS-PS4-1
+3
MEGA Science Graph & Data Do-Nows | 18 NGSS Bell Ringers | Grades 6-8 Full Year
Every graph and data bell ringer you need for middle school science — all three grades, one download. This mega pack includes 18 brand-new phenomenon-based do-nows covering every OpenSciEd unit across grades 6, 7, and 8. Every single question requires students to pull specific data from an original graph, chart, data table, scatter plot, or histogram. No vocabulary recall. No multiple choice. Just figures and thinking. YOUR STUDENTS STRUGGLE WITH GRAPHS. These fix that. GRADE 6 (6 Do-Nows • 60 P
6th - 8th
Biology, Chemistry, Physics
Mission Control 7th Grade Science Escape Room Activity NGSS Life Science Review
Orion Station is failing. Your students are mission specialists. Only data analysis can save the crew. Mission Control is a station-based data analysis activity where students rotate through 4 system alerts, each containing an original graph, chart, or diagram. They analyze the data to find their mission code digit, then combine all 4 to transmit the rescue code. WHAT'S INCLUDED: → Teacher Instructions (setup in 5 minutes) → Student Mission Briefing Page → 4 System Alert Cards with original d
7th
Biology, Earth Sciences, Physical Science
Lab Lockdown 2: The Sequel | 7th Grade Science Escape Room | End-of-Year Review
All new stations. All new data. All new code. Lab Lockdown 2 is back — and your students already know how to play. WHAT'S INCLUDED: → Teacher Instructions (setup in 5 minutes) → Student Introduction Page → 4 Station Cards with original data figures → Student Answer Sheet with lock code box → Complete Answer Key with lock code + common mistakes to watch for THE 4 STATIONS: → Station 1: Heart Rate & Breathing During Exercise — dual-line graph (Unit 7.1) → Station 2: Open vs. Sealed Flask — conser
7th
Biology, Earth Sciences, General Science
NGSS
MS-ESS3-1
, MS-LS4-1
, MS-LS1-1
+2
Lab Lockdown Escape Room | 7th Grade Science End-of-Year Review | NGSS Data
This is NOT another vocabulary escape room. In Lab Lockdown, students must READ graphs, ANALYZE data, and INTERPRET charts to find a 4-digit code that unlocks the lab. If they can't pull numbers from a figure, they can't escape. 4 STATIONS COVERING ALL 7TH GRADE UNITS: - Station 1 (Units 7.1/7.2) — Grouped bar chart: mass before & after reactions (conservation of mass) - Station 2 (Unit 7.3) — Line graph: heart rate recovery after sprinting - Station 3 (Units 7.4/7.5) — Pie chart: Earth's carbon
7th
Biology, Chemistry, Physics
Measurement Olympics | First Lab of the Year | Middle School Science Activity
The class that laughs together in September works together in May. Measurement Olympics is the first lab of the year — four measurement events where student teams compete to see who can predict, measure, and record most accurately. It builds lab skills, builds class culture, and requires zero science content knowledge to run. Works on day one. After the competition: students graph their own error data. The most engaging graph they'll make all year. WHAT'S INCLUDED: → 4 event station cards wi
6th - 8th
General Science
Science Safety Stations | September Lab Safety | Middle School NGSS Activity
Every teacher teaches lab safety in September. Nobody has a good version. Until now. Science Safety Stations turns lab safety instruction into a station rotation. Four real scenarios. Students rotate, analyze the situation, identify the risks, and write the correct response. Engaging, memorable, and it actually sticks — unlike a photocopied sheet they sign and forget. Works as a sub plan on day two. WHAT'S INCLUDED: → 4 scenario station cards with diagrams → Student answer sheet → Teacher key
6th - 8th
General Science
Phenomenon of the Year | First Week of School Science | NGSS Phenomenon-Based
Students spend 10 minutes telling you what they want to learn. That's your September sorted. Phenomenon of the Year is a first-week activity where students read six real phenomena and vote on which one they want to investigate. You get real data on student curiosity. They get ownership over their learning from day one. WHAT'S INCLUDED: → 6 phenomenon cards (different for each grade level) → Student voting sheet → Teacher discussion guide → NGSS connection chart for each phenomenon THREE GRADE
6th - 8th
General Science
What Kind of Science Thinker Are You? | First Week of School | NGSS Diagnostic
It feels like a fun quiz. It's actually the most useful data you'll collect all year. What Kind of Science Thinker Are You? is a first-week activity that doubles as a diagnostic. Students work through 4 scenarios — each requiring a different science skill — and discover how they think. You discover who your graph readers, measurers, modelers, and arguers are before your first real lesson. WHAT'S INCLUDED: → 4 scenario activity cards (Observer, Measurer, Modeler, Arguer) → Student self-assessm
6th - 8th
General Science
Mythbusters Science | Middle School Science Sub Plan | NGSS Argument Evidence
The myth card is the instruction. Students read it and go. No sub knowledge required. Mythbusters Science is a self-running sub plan where students use real data to confirm or bust a common science myth. Four myth cards. One evidence figure each. Students pick a myth, analyze the data, and write their verdict. WHAT'S INCLUDED: → 4 myth cards — each with a common science misconception and an evidence figure → Student verdict sheet in CER format (Claim, Evidence, Reasoning) → Teacher key with re
6th - 8th
Biology, Chemistry, General Science
Science Debate | Middle School Science Sub Plan | NGSS Argument from Evidence
Not opinion. Not debate club. Science argumentation with real data on both sides. Science Debate is a self-running sub plan built around a real science controversy. Students read two evidence cards — FOR and AGAINST — each with a real data figure. Then they write a CER response using the data, not their feelings. WHAT'S INCLUDED: → 2 evidence cards with data figures (FOR and AGAINST positions) → Student CER response sheet → Teacher key with scoring guide → Science argumentation rubric BUNDLE O
6th - 8th
Chemistry, General Science, Physical Science
Science News of the Week | Middle School Science Sub Plan | NGSS Data Analysis
The sub reads one sentence. Students work for 45 minutes. You come back to turned-in work. Science News of the Week is a self-running sub plan built around a real science phenomenon. Every issue includes a one-page reading passage, an original data figure, and three questions: one multiple choice, one short answer, one evidence-based reasoning. No science background required from the sub. No instructions beyond "read this and answer the questions." Completely self-contained. WHAT'S INCLUDED:
6th - 8th
Biology, Chemistry, General Science
Science Process Skills: Graphing Do-Nows | 8th Grade Bell Ringers | NGSS Data
Six ready-to-use bell ringers that teach students how to actually read a graph. Each bell ringer has one original data figure — a bar chart, line graph, scatter plot, data table, or model diagram — built from a real science phenomenon. Three questions per bell ringer: one multiple choice, one short answer, one evidence-based reasoning. WHAT'S INCLUDED: → 6 Bell Ringer Cards with original data figures → Student answer sections built into each card → Complete Teacher Key with answers and reasoni
8th
Biology, Chemistry, Physics
Science Process Skills: Graphing Do-Nows 7th Grade Bell Ringers NGSS Data
Six ready-to-use bell ringers that teach students how to actually read a graph. Each bell ringer has one original data figure — a bar chart, line graph, scatter plot, data table, or model diagram — built from a real science phenomenon. Three questions per bell ringer: one multiple choice, one short answer, one evidence-based reasoning. WHAT'S INCLUDED: → 6 Bell Ringer Cards with original data figures → Student answer sections built into each card → Complete Teacher Key with answers and reasoni
7th
Biology, Chemistry, General Science
Science Process Skills: Graphing Do-Nows | 6th Grade Bell Ringers | NGSS Data
Six ready-to-use bell ringers that teach students how to actually read a graph. Each bell ringer has one original data figure — a bar chart, line graph, scatter plot, data table, or model diagram — built from a real science phenomenon. Three questions per bell ringer: one multiple choice, one short answer, one evidence-based reasoning. WHAT'S INCLUDED: → 6 Bell Ringer Cards with original data figures → Student answer sections built into each card → Complete Teacher Key with answers and reasoni
6th
Biology, Earth Sciences, Physical Science
Mission Control | 8th Grade Science Escape Room Activity | NGSS Physical Science
Orion Station is failing. Your students are mission specialists. Only data analysis can save the crew. Mission Control is a station-based data analysis activity where students rotate through 4 system alerts, each containing an original graph, chart, or diagram. They analyze the data to find their mission code digit, then combine all 4 to transmit the rescue code. WHAT'S INCLUDED: → Teacher Instructions (setup in 5 minutes) → Student Mission Briefing Page → 4 System Alert Cards with original d
8th
Biology, Chemistry, Physical Science
Mission Control | 6th Grade Science Escape Room Activity | NGSS Earth Science Re
Orion Station is failing. Your students are mission specialists. Only data analysis can save the crew. Mission Control is a station-based data analysis activity where students rotate through 4 system alerts, each containing an original graph, chart, or diagram. They analyze the data to find their mission code digit, then combine all 4 to transmit the rescue code. WHAT'S INCLUDED: → Teacher Instructions (setup in 5 minutes) → Student Mission Briefing Page → 4 System Alert Cards with original d
6th
Biology, Environment, General Science
Showing 1-20 of 100 results
About the store
Experience
I'm David Rosvally, a middle school science teacher with 24 years of classroom experience in Connecticut. I currently teach 7th grade Geology, Astronomy, Biology, and Chemistry at Weston Middle School, where my students consistently score 88% proficient and above on the NGSS 8th grade science assessment.
I originally developed all of our district's 6th and 8th grade science units from scratch — years before we adopted OpenSciEd. When OpenSciEd arrived, my curriculum became the foundation for our district's implementation. I've since trained fellow teachers across the district on NGSS-aligned assessment practices and OpenSciEd implementation.
Every resource in this store is built around the three dimensions of the NGSS — Disciplinary Core Ideas, Science and Engineering Practices, and Crosscutting Concepts — using real phenomena to drive student sensemaking. Covering all 18 middle school OpenSciEd units across grades 6–8.
Three Dimension Science assessments are built using the criteria from the Achieve NGSS Science Task Screener — the professional standard used by curriculum leaders and instructional coaches to evaluate three-dimensional science task quality. Every assessment features a novel phenomenon-based transfer scenario, integrated SEP/DCI/CCC sense-making, and a complete teacher key with scoring look-fors, common misconception guidance, and rubrics connected to all three dimensions. No recall. No plug-and-chug. Just real science thinking. Student-Tested & Approved.
Teaching style
Inquiry-based and phenomenon-driven. I trained with the Exploratorium's Institute for Inquiry in San Francisco — a nationally recognized professional development program that has shaped science education reform across the country. IFI's approach grounds every lesson in perceptible phenomena, letting students' own questions drive the investigation. That philosophy runs through everything I create.
I've presented at NSTA national conferences on inquiry-based science instruction and serve as a certified TEAM CT mentor teacher, coaching new educators through Connecticut's teacher induction program. I don't make resources based on what sounds good in a product description. I make them based on what actually works when a real 12-year-old sits down and tries to figure something out.
Awards & shining teacher moments
I teach middle school science because there is nothing better than watching a kid who swore they hated science suddenly lean forward and say "wait — but why though?" I've been that teacher for 24 years. The one kids come back to visit. The one they quote in graduation speeches.
My students hit 88% proficiency on the state NGSS assessment — not because I teach to the test, but because three-dimensional sensemaking IS the test. When your students spend the whole year explaining real phenomena, modeling systems, and arguing from evidence, a standardized test is just another phenomenon to figure out.
Everything I make for this store comes from real moments in real classrooms — questions that actually confused my students, phenomena that actually made them argue, assessments that actually made them think. No fluff. No filler. Just the stuff that works.
My own education history
Master's Degree in Middle School Science — Southern Connecticut State University, 2008. Graduated Summa Cum Laude.
Professional Development: Exploratorium Institute for Inquiry (San Francisco) — inquiry-based science instruction and assessment design. NSTA Conference Presenter — inquiry-based science pedagogy. Certified TEAM CT Mentor Teacher — Connecticut's Beginning Educator Support and Training program. NSTA Member.
Additional biographical information
When I'm not in the classroom, I'm a husband, a dad to two teenagers, and a lifelong sports fan. I spend my weekends at concerts, watching games, and finding new ways to keep life interesting outside of school. My wife is also a teacher, so our house runs on the school calendar.
I started this store because I was tired of searching TPT for real NGSS assessments and finding vocabulary matching worksheets dressed up with clip art. My students deserved better. So I built what I actually needed — phenomenon-based resources that make kids think — and now I'm sharing them with every teacher who feels the same way.
Visit threedimensionscience.com for free resources and teacher guides.
TPT is the largest marketplace for PreK-12 resources, powered by a community of educators.
IXL family of brands