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What does a student learn in ?

This is the year science shifts from noticing the world to investigating it. Students ask testable questions, run small experiments, and use the data to explain what happened. They look at how energy moves, how plants and animals depend on each other, and how the land and weather change over time. By spring, they can plan a fair test, record what they see, and use that evidence to back up an answer.

  • Asking questions
  • Fair tests
  • Energy and motion
  • Ecosystems
  • Earth's systems
  • Engineering design
Source: Maine Maine Learning Results
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 to ask good questions, run a fair test, and write down what they notice. They begin keeping notebooks with sketches, measurements, and short explanations of what their evidence shows.

  2. 2

    Energy, motion, and waves

    Students push, pull, drop, and roll objects to see how forces change motion. They explore how light, sound, and heat move from place to place, and how a bump or a battery can pass energy along.

  3. 3

    Living things and their habitats

    Students look at how plants and animals are built to survive where they live, and how food, water, and sunlight move through a pond, forest, or backyard. They compare traits passed from parents to offspring.

  4. 4

    Earth, sky, and our impact

    Students track patterns in the sky, study rocks and water on Earth, and look at how weather and earthquakes shape the land. They also consider how people affect rivers, forests, and air, and what choices help.

  5. 5

    Designing and building solutions

    Students take on small engineering challenges. They define a problem, sketch a plan, build a model, test it, and improve it. By the end of the year they can explain their design choices using evidence from their tests.

Mastery Learning Standards
The required skills a student should display by the end of Grade 4.
Science and Engineering Practices
  • Asking Questions and Defining Problems

    Students identify a question about the natural world or a problem that could be fixed with a design, then check whether that question or problem can actually be tested or built.

  • Developing and Using Models

    Students build or draw models, such as a diagram of a water cycle or a simple bridge design, to show how something works. The model helps explain an idea that's hard to see or describe in words alone.

  • Planning and Carrying Out Investigations

    Students plan a test, collect real data, and use what they find to check whether their idea holds up.

  • Analyzing and Interpreting Data

    Students look at data from experiments or investigations and describe what it shows. They spot patterns, like temperatures rising over time or one material always outperforming another.

  • Mathematics and Computational Thinking

    Students use numbers, measurements, and simple calculations to back up what they notice in science. Instead of just describing what happened, they show it with data.

  • Constructing Explanations

    Students take what they observed or measured and write an explanation for why it happened, backing it up with evidence from their investigation.

  • Engaging in Argument from Evidence

    Students look at two different explanations or solutions, weigh the evidence behind each, and make a case for which one holds up better.

  • Communicating Information

    Students read science articles or experiment results, decide what the information means, and explain their findings clearly to others.

Physical Science
  • Matter and Interactions

    Students examine what everyday materials are made of and why they behave the way they do. They look at how tiny particles interact to explain things like melting, dissolving, and mixing.

  • Motion and Stability

    Students test how pushes and pulls change the speed or direction of objects. They learn why things stay still or keep moving, and what it takes to stop them.

  • Students explore how energy moves and changes, such as when sunlight warms a surface or a moving ball hits another object. They learn that energy doesn't disappear; it just shifts from one form to another.

  • Waves and Information

    Students study how waves (like sound and light) move energy from one place to another. They also explore how waves carry information, the way a phone signal or radio broadcast travels through the air.

Life Science
  • Structures and Processes

    Students examine how living things are built and how they work, from the tiny cells inside them to the larger systems those cells form, like a heart or a root.

  • Ecosystems

    Students trace how food, water, and nutrients move through an ecosystem, from plants to animals to decomposers. They also study how living things in a community depend on and affect each other.

  • Students study how traits like eye color or height pass from parents to offspring, and why siblings can look similar but not identical. Not every trait copies exactly; small differences show up from one generation to the next.

  • Biological Evolution

    Students look at how living things are alike and different, then explore why species change over generations. The focus is on what drives those changes over time.

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 evidence that tells us how Earth itself formed and changed over a very long time.

  • Earth's Systems

    Students learn how Earth's land, water, air, and living things connect and affect one another. They investigate what happens when these systems interact, like how rain shapes the land or how plants change the soil.

  • Earth and Human Activity

    Students explore how things people do, like building roads or burning fuel, change the land, air, and water around them. They also look at how earthquakes, floods, and storms disrupt daily life and communities.

Engineering, Technology, and Applications of Science
  • Engineering Design

    Students identify a problem, sketch or build possible solutions, then test and improve their design until it works better. This is the core loop engineers use every time they build something new.

  • Links Among Engineering, Technology, and Society

    Engineers solve problems using tools and materials that come from society's needs, and those solutions shape how people live. Students explore how a new invention can change daily life and how everyday problems push engineers to build something new.

Assessments
The state tests students at this grade and subject take.
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?

    Students spend the year asking questions, running small experiments, and building explanations from what they observe. They study matter and motion, plants and animals, Earth and space, and simple engineering problems. Most learning happens by doing, not by reading about it.

  • How can families help with science at home?

    Notice things together and ask what might be going on. A puddle drying up, a shadow moving across the yard, or a ball rolling down a ramp are all good starting points. Five minutes of wondering out loud builds the habit science depends on.

  • Does a student need to memorize a lot of science vocabulary?

    Words matter less than ideas at this age. Students should be able to describe what they saw and why they think it happened, even in everyday language. Precise vocabulary comes later, once the ideas are solid.

  • How should the year be sequenced across the four science areas?

    Most teachers anchor each quarter in one area: physical science, life science, Earth and space, and engineering. The science and engineering practices run through every unit, not as a separate topic. Revisiting practices across contexts is what makes them stick.

  • What usually needs the most reteaching?

    Designing a fair test is the hardest part. Students often change more than one thing at a time, or draw big conclusions from a single trial. Plan to model controlled tests early and return to them in every unit.

  • What can a parent do when a student is stuck on a science question?

    Ask what they already noticed and what they could try next. Resist giving the answer. A walk outside, a quick drawing, or a simple test at the kitchen sink often gets a stuck student moving again.

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

    Ready students can ask a testable question, plan a simple investigation, and use their data to explain what happened. They can also read a short science text and pull out the key idea. Look for this across units, not just on a final task.

  • How much should a student be reading and writing in science?

    Quite a bit. Students keep notebooks with drawings, labels, and short written explanations of what they found. Writing one or two sentences about a result is often where the real learning shows up.