Thinking and working like scientists
Students start the year learning how science actually gets done. They ask testable questions, run experiments, and back up claims with evidence instead of opinion.
This is the year science moves from learning facts to building explanations from evidence. Students dig into how atoms make up matter, how energy moves through living things, and how Earth fits into the larger universe. They run their own investigations, work with data, and defend their thinking against other possible answers. By spring, students can look at a real-world problem, gather evidence, and explain their reasoning the way a scientist would.
Students start the year learning how science actually gets done. They ask testable questions, run experiments, and back up claims with evidence instead of opinion.
Students dig into the physical world. They study what things are made of at the atomic level, why objects move the way they do, and how energy moves from one place to another.
Students look at how sound, light, and other waves carry energy and information. They connect this to everyday tech like phones, wifi, and medical imaging.
Students study how cells, bodies, and whole ecosystems work. They trace how energy and matter move through food webs and how traits pass from parents to offspring.
Students explore why species change over time and how every living thing on Earth is connected. They use fossils, DNA, and observed traits as evidence.
Students zoom out to Earth and the solar system. They study how Earth's air, water, and land interact, and how human choices shape the climate and the planet.
Students learn to turn a curiosity or real-world problem into a question that can actually be tested or built toward. The question has to be specific enough that evidence or a working solution could answer it.
Students build diagrams, physical models, or computer simulations to show how a system or process works, then use those models to explain what they observe or predict what happens next.
Students design and run experiments to collect real data and find out whether their ideas hold up.
Students look at data from experiments or research and figure out what it actually means. They spot trends, notice what stands out, and draw conclusions from the numbers or results in front of them.
Students use math, data, and calculations to back up scientific ideas, not just describe them in words. This might mean running numbers on an experiment, reading a graph, or building a simple model to test a prediction.
Students build written explanations for scientific phenomena by pointing to specific evidence and connecting it to established scientific principles. The explanation has to hold up, not just sound right.
Students look at two or more scientific explanations or design solutions, weigh the evidence behind each, and make a case for which one holds up better.
Students read scientific sources, judge how reliable they are, and explain their findings clearly to others. This practice shows up across every science topic, from lab reports to research presentations.
| Standard | Definition | Code |
|---|---|---|
| Asking Questions and Defining Problems High School | Students learn to turn a curiosity or real-world problem into a question that can actually be tested or built toward. The question has to be specific enough that evidence or a working solution could answer it. | MD-SCI.SEP.9-12.1 |
| Developing and Using Models High School | Students build diagrams, physical models, or computer simulations to show how a system or process works, then use those models to explain what they observe or predict what happens next. | MD-SCI.SEP.9-12.2 |
| Planning and Carrying Out Investigations High School | Students design and run experiments to collect real data and find out whether their ideas hold up. | MD-SCI.SEP.9-12.3 |
| Analyzing and Interpreting Data High School | Students look at data from experiments or research and figure out what it actually means. They spot trends, notice what stands out, and draw conclusions from the numbers or results in front of them. | MD-SCI.SEP.9-12.4 |
| Mathematics and Computational Thinking High School | Students use math, data, and calculations to back up scientific ideas, not just describe them in words. This might mean running numbers on an experiment, reading a graph, or building a simple model to test a prediction. | MD-SCI.SEP.9-12.5 |
| Constructing Explanations High School | Students build written explanations for scientific phenomena by pointing to specific evidence and connecting it to established scientific principles. The explanation has to hold up, not just sound right. | MD-SCI.SEP.9-12.6 |
| Engaging in Argument from Evidence High School | Students look at two or more scientific explanations or design solutions, weigh the evidence behind each, and make a case for which one holds up better. | MD-SCI.SEP.9-12.7 |
| Communicating Information High School | Students read scientific sources, judge how reliable they are, and explain their findings clearly to others. This practice shows up across every science topic, from lab reports to research presentations. | MD-SCI.SEP.9-12.8 |
Students examine how atoms and molecules are built and how they interact to explain physical phenomena like dissolving, burning, or changing state.
Students study how things speed up, slow down, or stay still by applying Newton's laws and exploring how energy and momentum are conserved in collisions and other interactions.
Students trace how energy moves and changes form, from heat to motion to electricity and back, and show that the total amount stays the same even as it shifts.
Students study how waves, like sound and light, carry energy from one place to another and how that same movement makes technologies like radio, Wi-Fi, and medical imaging work.
| Standard | Definition | Code |
|---|---|---|
| Matter and Interactions High School | Students examine how atoms and molecules are built and how they interact to explain physical phenomena like dissolving, burning, or changing state. | MD-SCI.PS.9-12.1 |
| Motion and Stability High School | Students study how things speed up, slow down, or stay still by applying Newton's laws and exploring how energy and momentum are conserved in collisions and other interactions. | MD-SCI.PS.9-12.2 |
| Energy High School | Students trace how energy moves and changes form, from heat to motion to electricity and back, and show that the total amount stays the same even as it shifts. | MD-SCI.PS.9-12.3 |
| Waves and Information High School | Students study how waves, like sound and light, carry energy from one place to another and how that same movement makes technologies like radio, Wi-Fi, and medical imaging work. | MD-SCI.PS.9-12.4 |
Students study how living things are built and how they work, starting at the cell level and scaling up to full body systems like the heart, lungs, and brain.
Students trace how carbon, water, and nutrients move through living things and back into the environment. They also study how species in a community depend on, compete with, and affect each other.
Students study how traits like eye color or height pass from parents to offspring, and why siblings can look different even with the same parents.
Students study why living things share common traits and why they differ, then examine the forces like natural selection and genetic change that drive those differences over time.
| Standard | Definition | Code |
|---|---|---|
| Structures and Processes High School | Students study how living things are built and how they work, starting at the cell level and scaling up to full body systems like the heart, lungs, and brain. | MD-SCI.LS.9-12.1 |
| Ecosystems High School | Students trace how carbon, water, and nutrients move through living things and back into the environment. They also study how species in a community depend on, compete with, and affect each other. | MD-SCI.LS.9-12.2 |
| Heredity High School | Students study how traits like eye color or height pass from parents to offspring, and why siblings can look different even with the same parents. | MD-SCI.LS.9-12.3 |
| Biological Evolution High School | Students study why living things share common traits and why they differ, then examine the forces like natural selection and genetic change that drive those differences over time. | MD-SCI.LS.9-12.4 |
Students map out where Earth sits in the solar system and trace how it moves alongside other planets. They also look at evidence from rocks and fossils to piece together Earth's history over billions of years.
Students study how Earth's land, water, air, and living things connect and affect one another. A volcanic eruption that changes rainfall patterns, or a forest loss that shifts local temperatures, shows these systems in action.
Students examine how things like farming, cities, and industry change Earth's land, water, and air, and how earthquakes, floods, and wildfires shape where and how people live.
| Standard | Definition | Code |
|---|---|---|
| Earth's Place in the Universe High School | Students map out where Earth sits in the solar system and trace how it moves alongside other planets. They also look at evidence from rocks and fossils to piece together Earth's history over billions of years. | MD-SCI.ESS.9-12.1 |
| Earth's Systems High School | Students study how Earth's land, water, air, and living things connect and affect one another. A volcanic eruption that changes rainfall patterns, or a forest loss that shifts local temperatures, shows these systems in action. | MD-SCI.ESS.9-12.2 |
| Earth and Human Activity High School | Students examine how things like farming, cities, and industry change Earth's land, water, and air, and how earthquakes, floods, and wildfires shape where and how people live. | MD-SCI.ESS.9-12.3 |
Students identify a real problem, brainstorm solutions, and then test and adjust their design until it works better. The focus is on improving ideas through repeated rounds of building and testing, not just getting the right answer on the first try.
Engineering shapes everyday tools and systems, and those tools shape how society lives and works. Students examine how each one changes the other, tracing real decisions made by engineers back to social needs and forward to new problems.
| Standard | Definition | Code |
|---|---|---|
| Engineering Design High School | Students identify a real problem, brainstorm solutions, and then test and adjust their design until it works better. The focus is on improving ideas through repeated rounds of building and testing, not just getting the right answer on the first try. | MD-SCI.ETS.9-12.1 |
| Links Among Engineering, Technology, and Society High School | Engineering shapes everyday tools and systems, and those tools shape how society lives and works. Students examine how each one changes the other, tracing real decisions made by engineers back to social needs and forward to new problems. | MD-SCI.ETS.9-12.2 |
End-of-course assessment in high school biology, aligned to Maryland's NGSS-based science standards.
Most students take a sequence that covers physical science, life science, and earth and space science, often spread across biology, chemistry, and physics or environmental science. The work shifts from memorizing facts to explaining how things happen and backing up claims with evidence.
Ask students to explain the idea in their own words, then ask what evidence supports it. If they get stuck, have them sketch a quick diagram or look up one short video and re-explain. The goal is to get them talking through their reasoning, not to give them the answer.
High school science expects students to build explanations and defend them with data, not just fill in worksheets. Lab reports, claim-evidence-reasoning paragraphs, and debates over competing explanations are normal. This is the part of science that colleges and employers actually care about.
Pick two or three practices to anchor each unit rather than trying to hit all eight every time. Modeling and data analysis pair well with most physical and life science topics, while argument from evidence fits naturally into earth science and engineering units.
Energy transfer, genetics problems, and anything involving graph interpretation usually need a second pass. Students also struggle to connect cellular processes to whole-organism behavior and to link human activity back to specific earth systems. Build in time for a revisit before the unit test, not after.
Some math helps, especially for physics and chemistry, but most of the math is algebra, unit conversions, and reading graphs. If a student is shaky on those, ten minutes a few nights a week on graph reading and basic equations goes a long way.
Watch a news story about weather, health, or technology and ask what evidence the reporter used. Cooking, gardening, and fixing things around the house all involve testing ideas and adjusting. Five minutes of asking why something works is more useful than buying a kit.
Students define a real problem, sketch possible solutions, build or model one, test it, and improve it. A good engineering task can take a week or run as a thread across a unit. Keep the constraints tight so students have to make trade-offs and defend their choices.
Readiness shows up when students can read a new data set, propose an explanation, and revise it when given new evidence. If they can do that with an unfamiliar phenomenon, not just a reviewed topic, they are ready to move on.