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What does a student learn in ?

This is the year science starts feeling like real investigating. Students ask questions, run simple tests, and use what they find to explain how things work. They look closely at forces and motion, how living things survive in their habitats, and patterns in weather and the sky. By spring, students can plan a fair test, record what happens, and explain their answer using the evidence they gathered.

  • Forces and motion
  • Habitats and survival
  • Weather patterns
  • Fair tests
  • Simple engineering
  • Using evidence
Source: Massachusetts Massachusetts Curriculum Frameworks
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 and working like scientists

    Students learn to ask questions they can actually test, plan a fair experiment, and record what they see. They start drawing simple models to explain how something works.

  2. 2

    Forces, motion, and energy

    Students push, pull, and roll objects to see what makes things speed up, slow down, or stop. They explore how energy moves through sound, light, heat, and motion.

  3. 3

    Living things and their habitats

    Students look at how plants and animals are built to survive where they live, what they need to grow, and how traits pass from parents to offspring. They notice patterns across a pond, a forest, or a backyard.

  4. 4

    Earth, sky, and weather

    Students track the sun, moon, and weather patterns and dig into rocks, water, and soil. They see how the parts of Earth fit together and how people change the land around them.

  5. 5

    Designing solutions to real problems

    Students take on a small engineering challenge, sketch a few ideas, build something, and test it. They use what went wrong on the first try to make the next version better.

Mastery Learning Standards
The required skills a student should display by the end of Grade 3.
Science and Engineering Practices
  • Asking Questions and Defining Problems

    Students come up with questions about the world around them that a real test or experiment could answer. They also describe problems clearly enough that an engineer or scientist could start working on a solution.

  • Developing and Using Models

    Students draw or build a simple model, like a diagram of the water cycle or a sketch of a bridge design, to show how something works or explain why something happens.

  • Planning and Carrying Out Investigations

    Students plan a test or experiment, carry it out, and record what they find. The point is to gather real information that helps answer a question or check whether an idea holds up.

  • Analyzing and Interpreting Data

    Students look at data from an experiment, spot patterns in the numbers or results, and explain what those patterns mean.

  • Mathematics and Computational Thinking

    Students use counting, measuring, and simple math to back up what they observe in science. Instead of just saying something is "bigger" or "faster," they put a number to it.

  • Constructing Explanations

    Students take what they observed or measured and write an explanation that uses that evidence to show why something happened or how something works.

  • Engaging in Argument from Evidence

    Students look at two possible explanations or solutions, then use evidence from their investigations to argue which one holds up better.

  • Communicating Information

    Students read simple science texts, decide whether the information makes sense, and share what they learned in words or pictures.

Physical Science
  • Matter and Interactions

    Students explore what everyday materials are made of and why they behave the way they do. They investigate how tiny particles interact to explain physical changes they can observe and measure.

  • Motion and Stability

    Students test how pushes and pulls change the way objects move, and explore why some things stay still while others speed up, slow down, or change direction.

  • Students explore how energy shows up in different forms, like heat, light, and sound, and track where it goes when it moves from one object to another. They learn that energy is never lost, just changed or passed along.

  • Waves and Information

    Students explore how waves (like sound and light) carry energy and send information from one place to another. They investigate real examples, such as how a phone call travels or how a drum sends vibrations through the air.

Life Science
  • Structures and Processes

    Students look at how living things are built and how they work, from the tiny cells inside a leaf or a finger to the larger body systems those cells form together.

  • Ecosystems

    Students trace how food energy moves from plants to animals and back into the soil, and look at how living things in one place depend on and affect each other.

  • Students look at how traits like eye color or height get passed from parents to offspring, and why siblings can look similar but not identical.

  • Biological Evolution

    Students compare living things to find what they have in common and what makes each one different. They explore how those differences help some plants and animals survive better than others.

Earth and Space Science
  • Earth's Place in the Universe

    Students learn where Earth fits in the solar system and how the planets move in predictable patterns. They also look at how Earth itself has changed over a very long time.

  • Earth's Systems

    Students learn that land, water, air, and living things are each part of Earth and affect one another. A rainstorm filling a river, or roots breaking apart rock, are the kinds of connections students explore.

  • Earth and Human Activity

    Students look at how people change the land, water, and air around them, and what happens when earthquakes, floods, or storms hit a community.

Engineering, Technology, and Applications of Science
  • Engineering Design

    Students spot a real problem, sketch out ways to fix it, then test their ideas and improve them until the design works better.

  • Links Among Engineering, Technology, and Society

    Students explore how inventions shape daily life and how everyday needs push engineers to build new things. A new tool changes how people live, and how people live pushes engineers to create new tools.

No state assessments at this grade
Students take their next one in Grade 4.
National Monitoring

NAEP (National Assessment of Educational Progress)

Federally administered sample-based assessment in reading, mathematics, science, and writing. NAEP results inform state-by-state comparisons rather than individual student or school accountability.

When given:
biennial in winter
Frequency:
every two years
Official source
Common Questions
  • What does science look like this year?

    Science this year is hands-on. Students ask questions, run small experiments, and look for patterns in what they see. They study forces and motion, living things and their habitats, weather and the Earth, and they design simple solutions to everyday problems.

  • How can I help with science at home?

    Notice things together. Watch how a ball rolls down a ramp, why ice melts faster in the sun, or how plants lean toward a window. Ask what students think will happen and why. A few minutes of wondering out loud builds the same thinking they use in class.

  • How should I sequence the units across the year?

    Start with the science practices in a short unit students will revisit all year, like observing, measuring, and recording. Then rotate through physical science, life science, and Earth science, ending with an engineering design project that pulls the practices back together.

  • Does my child need to memorize a lot of science facts?

    Not really. The point is to think like a scientist, not to recite definitions. Students should be able to explain what they observed, what they think is happening, and what evidence backs it up. Vocabulary grows from doing the work, not from flashcards.

  • Which practices usually need the most reteaching?

    Two stand out. First, planning a fair test where only one thing changes at a time. Second, using evidence in an explanation instead of just describing what happened. Build short routines around both and revisit them in every unit.

  • What is an engineering design project at this age?

    Students take a real problem, like keeping a drink cold or building a stable tower, and try a few designs. They test, see what failed, and improve the next version. The lesson is the process of trying, measuring, and revising, not getting it right the first time.

  • How do I know students are ready for next year?

    By the end of the year, students should be able to ask a testable question, plan a simple investigation, collect data, and explain results using that data. If they can argue a point with evidence instead of opinion, they are ready.

  • My child says science is boring. What can I do?

    Tie it to something they already like. Cooking is chemistry, sports are forces and motion, pets are biology, and rainy days are weather science. A short kitchen experiment or a walk that turns into a nature hunt usually brings back the curiosity.