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What does a student learn in ?

This is the year science stops being a tour of topics and starts asking students to explain how the world actually works. Students build models for atoms, forces, cells, ecosystems, and the Earth-moon-sun system, then back up their thinking with data they collected or read on a graph. They also tackle a real design problem, testing and improving a device against clear rules. By spring, students can look at an experiment or a chart and explain what it shows in their own words.

  • Atoms and molecules
  • Forces and motion
  • Cells and the body
  • Ecosystems
  • Earth and space
  • Reading data
  • Engineering design
Source: Nevada Nevada Academic Content Standards
Year at a glance
How the year usually goes. Every school and district set their own curriculum, so treat this as a guide, not official pacing.
  1. 1

    Thinking like a scientist

    Students start the year learning how scientists work. They ask questions, plan simple investigations, and figure out what counts as good evidence before drawing a conclusion.

  2. 2

    Matter and chemical reactions

    Students look at what everyday stuff is made of and how it changes. They build models of tiny particles, watch substances react, and track what happens when things heat up or cool down.

  3. 3

    Forces, motion, and energy

    Students explore why objects speed up, slow down, or stay put. They test pushes and pulls, study magnets and gravity, and connect speed and mass to the energy an object carries.

  4. 4

    Waves and information

    Students study how sound and light travel as waves. They model how waves bounce, get absorbed, or pass through materials, and look at how phones and computers send information as digital signals.

  5. 5

    Cells, bodies, and ecosystems

    Students zoom in on living things. They see that every organism is built from cells, trace how food and energy move through plants, animals, and ecosystems, and study how living things depend on each other.

  6. 6

    Genes, evolution, and traits

    Students look at why family members share traits and why species change over long stretches of time. They study heredity, fossils, and how natural selection shapes populations.

Mastery Learning Standards
The required skills a student should display by the end of Grade 6.
  • Matter and Its Interactions

    MS-PS1

    Students study what matter is made of and how it changes. They learn why substances react, mix, or stay the same when combined with other materials.

  • Motion and Stability

    MS-PS2

    Students learn why objects speed up, slow down, or change direction. The focus is on forces like gravity and friction and how they interact to keep things moving or hold them still.

  • Energy

    MS-PS3

    Students study what energy is, where it comes from, and how it moves from one place or object to another. They learn why a moving ball can knock things over, why food fuels the body, and how heat travels through materials.

  • Waves and Their Applications in Technologies for Information Transfer

    MS-PS4

    Students study how waves, including light and sound, carry energy and information. They explore how technologies like radio, cameras, and digital screens use wave behavior to send and store what we see and hear.

  • From Molecules to Organisms

    MS-LS1

    Living things are built from cells, and those cells run on energy from food. Students learn how the parts of an organism work together to keep it alive and growing.

  • Ecosystems: Interactions, Energy

    MS-LS2

    Students learn how living things in an ecosystem depend on each other and on their environment. They trace energy through food webs and explore what happens when a species disappears or a new one arrives.

  • Heredity: Inheritance and Variation of Traits

    MS-LS3

    Students learn how traits like eye color or height pass from parents to offspring, and why siblings from the same parents can still look different from each other.

  • Biological Evolution

    MS-LS4

    Students study how living things have changed over millions of years and why so many different species exist today. They look at fossils, body structures, and inherited traits to explain how life on Earth has evolved.

  • Earth's Place in the Universe

    MS-ESS1

    Students learn why the sun rises and sets, how seasons change, and what makes up our solar system and the universe beyond it.

  • Earth's Systems

    MS-ESS2

    Students study how Earth's layers, oceans, atmosphere, and weather patterns interact. They look at how energy from the sun and heat from inside the planet drive those changes over time.

  • Earth and Human Activity

    MS-ESS3

    Students study how Earth's natural resources, hazards, and climate connect to human decisions. The focus is on how people can design solutions to reduce the damage from natural disasters and slow the effects of resource use on the environment.

  • Engineering Design

    MS-ETS1

    Students apply science ideas to real problems by defining what a solution needs to do, building and testing possible designs, and revising based on what they learn from results.

Matter and Its Interactions
  • Develop models to describe the atomic composition of simple molecules and…

    MS-PS1-1

    Students learn what atoms are and how they link together to form substances like water or table salt. They draw or build models showing which atoms make up a simple molecule or a repeating structure like a crystal.

  • Analyze and interpret data on the properties of substances before and after the…

    MS-PS1-2

    Students compare what a substance looks, smells, or feels like before and after mixing it with something else. If the result is clearly different, a chemical reaction probably happened.

  • Gather and make sense of information to describe that synthetic materials come…

    MS-PS1-3

    Students trace everyday synthetic materials, like plastic or nylon, back to the natural resources they came from, then think through how those materials have changed daily life for better or worse.

  • Develop a model that predicts and describes changes in particle motion…

    MS-PS1-4

    Students build a diagram or model showing what happens to the tiny particles inside a substance when heat is added or taken away. The model explains why ice melts, water boils, or steam cools back into liquid.

  • Develop and use a model to describe how the total number of atoms does not…

    MS-PS1-5

    In a chemical reaction, no atoms appear or disappear. Students build and use models to show that the atoms just rearrange, which is why the total mass before and after the reaction stays the same.

  • Undertake a design project to construct, test

    MS-PS1-6

    Students design and test a device that uses a chemical reaction to produce heat or cold, like a hand warmer or an instant cold pack, then adjust the design based on what the results show.

Motion and Stability: Forces and Interactions
  • Apply Newton's Third Law to design a solution to a problem involving the motion…

    MS-PS2-1

    When two objects collide, each one pushes back on the other with equal force. Students use that idea to design a solution, like padding that reduces the impact when two moving objects hit.

  • Plan an investigation to provide evidence that the change in an object's motion…

    MS-PS2-2

    Students plan and run a test to show how a heavier object needs more force to speed up or slow down than a lighter one does. The bigger the push or pull, the more the motion changes.

  • Ask questions about data to determine the factors that affect the strength of…

    MS-PS2-3

    Students look at data to figure out what makes electric and magnetic forces stronger or weaker. They practice asking "what changes when I change this?" using real measurements, not guesses.

  • Construct and present arguments using evidence to support the claim that…

    MS-PS2-4

    Students build an argument, using evidence, that gravity pulls objects toward each other and that heavier objects pull with more force. Think of how the Earth holds the Moon in orbit while the Moon barely nudges the Earth.

  • Conduct an investigation and evaluate the experimental design to provide…

    MS-PS2-5

    Students test how magnets or electrically charged objects push and pull each other without touching. They also judge whether the experiment was set up well enough to trust the results.

Energy
  • Construct and interpret graphical displays of data to describe the…

    MS-PS3-1

    Students read and build graphs that show how a moving object's energy changes when it gets heavier or faster. A heavier car rolling downhill carries more energy than a lighter one at the same speed.

  • Develop a model to describe that when the arrangement of objects interacting at…

    MS-PS3-2

    Students model how stored energy changes when objects move closer together or farther apart, like a stretched rubber band or a ball held high above the ground.

  • Apply scientific principles to design, construct

    MS-PS3-3

    Students design and build a device, like an insulated container or a heat conductor, then test whether it slows down or speeds up heat moving between objects. The goal is to show how material choices affect temperature change.

  • Plan an investigation to determine the relationships among the energy…

    MS-PS3-4

    Students design an experiment to figure out how the amount of heat added, the type of material, and the weight of a sample each affect how much the temperature rises.

  • Construct, use, and present arguments to support the claim that when the…

    MS-PS3-5

    When a moving object speeds up or slows down, energy is either flowing into it or leaving it. Students build an argument, using real examples, to explain where that energy came from or went.

Waves and Their Applications in Technologies for Information Transfer
  • Use mathematical representations to describe a simple model for waves that…

    MS-PS4-1

    Students learn that bigger waves carry more energy. They practice showing that relationship with numbers and graphs, using wave height as the key measurement.

  • Develop and use a model to describe that waves are reflected, absorbed

    MS-PS4-2

    Waves hit a surface and either bounce back, pass through, or get soaked up by the material. Students model how light or sound behaves differently depending on what it runs into, like glass, wood, or water.

  • Integrate qualitative scientific and technical information to support the claim…

    MS-PS4-3

    Students learn why digital signals, sent as on/off pulses, hold up better than analog signals when carrying sound, images, or data across long distances. They read technical sources and pull details together to build a case for why digital transmission loses less information in transit.

From Molecules to Organisms: Structures and Processes
  • Conduct an investigation to provide evidence that living things are made of…

    MS-LS1-1

    Students investigate whether living things are made of cells by examining samples under a microscope. They compare single-celled organisms to plants and animals, which are made of many specialized cells working together.

  • Develop and use a model to describe the function of a cell as a whole and ways…

    MS-LS1-2

    Students learn what cells do and how the parts inside them work together. Think of a cell like a tiny factory: each part has a job that keeps the whole thing running.

  • Use argument supported by evidence for how the body is a system of interacting…

    MS-LS1-3

    Students explain how the body's systems (like the circulatory or digestive system) work together, using real evidence to back up their reasoning. The focus is on how groups of cells form tissues and organs that keep the whole body running.

  • Use argument based on empirical evidence and scientific reasoning to support an…

    MS-LS1-4

    Students study how animals find mates and how plants grow flowers or fruit, then use real evidence to explain why those behaviors and structures help the species reproduce.

  • Construct a scientific explanation based on evidence for how environmental and…

    MS-LS1-5

    Students explain why two plants or animals of the same species can end up very different sizes. They use evidence to show how genes and surroundings, like light, food, or temperature, shape how a living thing grows.

  • Construct a scientific explanation based on evidence for the role of…

    MS-LS1-6

    Students explain how plants use sunlight, water, and carbon dioxide to make food. That process moves energy and raw materials through living things, connecting plants to every organism that eats.

  • Develop a model to describe how food is rearranged through chemical reactions…

    MS-LS1-7

    Food doesn't just get used up inside the body. Students learn how molecules in food are broken apart and rebuilt into new materials that help the body grow, move, and stay alive.

  • Gather and synthesize information that sensory receptors respond to stimuli by…

    MS-LS1-8

    Sensory receptors detect what students see, hear, taste, smell, or touch, then send signals to the brain. The brain either acts on those signals right away or stores them as memories.

Ecosystems: Interactions, Energy, and Dynamics
  • Analyze and interpret data to provide evidence for the effects of resource…

    MS-LS2-1

    Students study how changes in food, water, or space affect which animals and plants survive in a given area. When resources run low, populations shrink; when resources are plentiful, they grow.

  • Construct an explanation that predicts patterns of interactions among organisms…

    MS-LS2-2

    Students predict how living things affect each other, such as how predators, prey, and plants interact, and explain why those same patterns show up across different ecosystems.

  • Develop a model to describe the cycling of matter and flow of energy among…

    MS-LS2-3

    Students trace how matter (like water, carbon, or nutrients) moves through an ecosystem and how energy flows from the sun through living things. They build a model, such as a diagram or chart, to show how the two are connected.

  • Construct an argument supported by empirical evidence that changes to physical…

    MS-LS2-4

    When something in an ecosystem changes, like a drought drying up a pond or a new predator moving in, other living things feel it. Students use real data to explain how one change can shrink, grow, or wipe out a population.

  • Evaluate competing design solutions for maintaining biodiversity and ecosystem…

    MS-LS2-5

    Students look at real proposals for protecting wildlife or land and judge which one does the best job of keeping ecosystems healthy. They weigh trade-offs, not just pick a favorite.

Heredity: Inheritance and Variation of Traits
  • Develop and use a model to describe why structural changes to genes

    MS-LS3-1

    A gene mutation is a change in the DNA instructions inside a cell. Students model how that change can alter the proteins a cell makes, which may damage the organism, help it survive better, or make no difference at all.

  • Develop and use a model to describe why asexual reproduction results in…

    MS-LS3-2

    Students explore why two parents produce offspring that look similar but not identical, while a single parent produces offspring that are exact copies. The lesson uses diagrams or models to show how genes get passed down in each case.

Biological Evolution: Unity and Diversity
  • Analyze and interpret data for patterns in the fossil record that document the…

    MS-LS4-1

    Students study real fossil evidence to find patterns in how life on Earth has changed over millions of years, including which creatures existed, which died out, and how species shifted over time.

  • Apply scientific ideas to construct an explanation for the anatomical…

    MS-LS4-2

    Students compare bones, body shapes, and other physical features across living animals and fossils to figure out which species share a common ancestor.

  • Analyze displays of pictorial data to compare patterns of similarities in the…

    MS-LS4-3

    Students compare drawings of animal embryos at early stages of development to find clues about how species are related. Similarities that disappear by adulthood can still show up in the embryo, revealing connections between animals that look nothing alike when fully grown.

  • Construct an explanation based on evidence that describes how genetic…

    MS-LS4-4

    Some animals in a group are born slightly different from the others. Students explain, using real evidence, how those differences can make certain individuals more likely to survive and have offspring in a given place.

  • Gather and synthesize information about the technologies that have changed the…

    MS-LS4-5

    Selective breeding and genetic tools let people choose which traits get passed to the next generation of plants or animals. Students research how those technologies work and what they make possible.

  • Use mathematical representations to support explanations of how natural…

    MS-LS4-6

    Students use graphs and data to explain why some traits become more or less common in a population over generations. Natural selection favors traits that help survival, so those traits spread while others fade.

Earth's Place in the Universe
  • Develop and use a model of the Earth-sun-moon system to describe the cyclic…

    MS-ESS1-1

    Students build and use a model of the Earth, sun, and moon to explain why the moon's shape appears to change each night, why eclipses happen, and why seasons shift throughout the year.

  • Develop and use a model to describe the role of gravity in the motions within…

    MS-ESS1-2

    Gravity pulls every planet, moon, and star toward other objects with mass. Students build or use a model to show how that pulling force keeps planets orbiting the sun and stars grouped inside a galaxy.

  • Analyze and interpret data to determine scale properties of objects in the…

    MS-ESS1-3

    Students compare the sizes and distances of planets, moons, and the sun using real data. The goal is to understand just how vast the gaps between objects in our solar system actually are.

  • Construct a scientific explanation based on evidence from rock strata for how…

    MS-ESS1-4

    Students study layers of rock to figure out the order of events in Earth's history. Each layer tells part of the story, and scientists use those clues to build a timeline stretching back 4.6 billion years.

Earth's Systems
  • Develop a model to describe the cycling of Earth's materials and the flow of…

    MS-ESS2-1

    Students create a diagram or model showing how rocks, water, and other Earth materials move through cycles, and explain what energy source (like heat from inside Earth or sunlight) keeps each cycle going.

  • Construct an explanation based on evidence for how geoscience processes have…

    MS-ESS2-2

    Rocks, landforms, and coastlines change over time because of forces like erosion, earthquakes, and volcanic activity. Students study evidence from Earth's surface to explain how those changes happen across thousands of years or in a single storm.

  • Analyze and interpret data on the distribution of fossils and rocks…

    MS-ESS2-3

    Fossils and rock layers found on different continents match up in ways that only make sense if the continents were once connected. Students study those patterns, along with seafloor shapes, to figure out how Earth's plates have shifted over millions of years.

  • Develop a model to describe the cycling of water through Earth's systems driven…

    MS-ESS2-4

    Students map how water moves from oceans to clouds to rain and back again. They learn that sunlight powers the cycle upward and gravity pulls it back down.

  • Collect data to provide evidence for how the motions and complex interactions…

    MS-ESS2-5

    Students track how air masses move and collide to explain why the weather changes. They gather real data, like temperature and pressure readings, and use it as evidence for what caused a storm, a cold snap, or a clear day.

  • Develop and use a model to describe how unequal heating and rotation of the…

    MS-ESS2-6

    Students build a diagram or model to explain why some parts of Earth get hotter than others, and how that uneven heat, combined with Earth's spin, drives wind patterns and ocean currents that shape the climate where you live.

Earth and Human Activity
  • Construct a scientific explanation based on evidence for how the uneven…

    MS-ESS3-1

    Minerals, fossil fuels, and fresh water are not spread evenly across Earth. Students explain why using evidence from geoscience processes, like volcanic activity or the movement of ancient seas, that shaped where those resources ended up.

  • Analyze and interpret data on natural hazards to forecast future catastrophic…

    MS-ESS3-2

    Students study data from past earthquakes, floods, and volcanic eruptions to spot patterns. Those patterns help scientists predict where disasters are likely to strike and design systems that reduce the damage.

  • Apply scientific principles to design a method for monitoring and minimizing a…

    MS-ESS3-3

    Students design a plan to track and reduce a real environmental problem, such as water pollution or habitat loss, using science to explain what to do and why it would work.

  • Construct an argument supported by evidence for how increases in human…

    MS-ESS3-4

    Students build a written argument explaining how a growing population and rising resource use (think water, fuel, and farmland) put pressure on land, air, and water. They back that argument with real evidence.

  • Ask questions to clarify evidence of the factors that have caused the rise in…

    MS-ESS3-5

    Students look at data and ask questions about why Earth's average temperature has risen over the past 100 years, including the role of burning fossil fuels and other human activity.

Engineering Design
  • Define the criteria and constraints of a design problem with sufficient…

    MS-ETS1-1

    Before building anything, students figure out exactly what a solution needs to do and what limitations it has to work within, like cost, materials, or environmental impact. That groundwork shapes every design decision that follows.

  • Evaluate competing design solutions using a systematic process to determine how…

    MS-ETS1-2

    Students compare two or more design solutions side by side, checking each one against the same set of requirements and limits to decide which works best for the problem at hand.

  • Analyze data from tests to determine similarities and differences among several…

    MS-ETS1-3

    Students compare test results from multiple design prototypes to find what works best in each one, then combine those strengths into a single improved design.

  • Develop a model to generate data for iterative testing and modification of a…

    MS-ETS1-4

    Students build and test a model of their design, study what the results show, then adjust and retest until the design works as well as it can.

Common Questions
  • What science will students learn this year?

    Students cover a wide mix: atoms and chemical reactions, forces and motion, energy and waves, cells and ecosystems, heredity and evolution, and Earth and space. They also do engineering design projects where they build and test something to solve a problem.

  • How can a parent help with science at home?

    Ask students to explain what they did in class that day, not just what they learned. Cook together and talk about what changes when ingredients mix or heat up. Watch the moon over a week, or look at a leaf or bug up close. Small noticing habits go a long way.

  • Why is so much of science class about building models and arguments?

    Middle school science is less about memorising facts and more about explaining how things work using evidence. Students draw diagrams, run small experiments, and defend their thinking. That is what scientists actually do, and it sticks better than copying definitions.

  • How should the year be sequenced across so many topics?

    Most teachers anchor each quarter in one big idea: matter and energy, forces and motion, life systems, and Earth and space. Engineering design fits inside each unit as the application piece rather than a separate block at the end.

  • Which topics usually need the most reteaching?

    Particle behavior, conservation of mass, and the difference between force and energy trip up the most students. Photosynthesis and cellular respiration as matter and energy flow, not just vocabulary, also need extra time. Plan to revisit these with a second example later in the year.

  • What should students be able to do by the end of the year?

    Students should be able to read a data table or graph, make a claim about what it shows, and back it up with evidence. They should also be able to sketch a model that explains a real phenomenon, like why ice melts or why the moon changes shape.

  • How can a parent help when homework involves a lab report or model?

    Ask three questions: What were you trying to find out? What did you notice? What does that tell you? Resist the urge to fix the diagram. A messy model that students can explain is worth more than a neat one copied from a website.

  • How much math should show up in science this year?

    Quite a bit. Students graph relationships like speed and energy, work with ratios and scale for the solar system, and use simple equations for waves. If math feels like the sticking point, it often is. A quick review of graphing and proportions pays off across units.

  • How do students get ready for high school science?

    Strong sixth grade students leave able to plan a fair test, record data carefully, and write a short explanation that ties evidence to a claim. Those habits matter more than remembering every vocabulary word. High school builds on the reasoning, not the trivia.