Thinking like a scientist
Students start the year asking questions about what they notice and trying simple experiments to find answers. They sort objects, look for patterns, and draw what they see so others can understand their thinking.
This is the year science becomes a habit of asking questions and testing them. Students poke at how things move, push, and bend. They watch plants and animals to see what they need to live, and notice how weather and water shape the land around them. By spring, students can ask a real question, run a simple test, and explain what the results show.
Students start the year asking questions about what they notice and trying simple experiments to find answers. They sort objects, look for patterns, and draw what they see so others can understand their thinking.
Students explore what things are made of and how they change when heated, cooled, or mixed. They push and pull objects to see how forces start, stop, and steer motion.
Students look at the parts of plants and animals and what each part does. They study how living things get what they need from their habitat and how young plants and animals grow up to look like their parents.
Students track the weather, watch how water shapes the land, and notice patterns in the sun, moon, and stars. They also talk about how people can take care of land, water, and air.
Students wrap up the year by acting as engineers. They define a small problem, sketch a few ideas, build a simple model, test it, and make it better based on what happened.
Students practice turning everyday curiosity into questions that can actually be tested. They also learn to describe a problem clearly enough that someone could design a solution for it.
Students draw or build simple models to show how something works, like a diagram of a water cycle or a sketch of a bridge design. The model helps explain an idea they can't easily show with words alone.
Students plan a test, run it, and record what happens to see if their idea holds up.
Students look at data from science activities, spot patterns in what they find, and explain what those patterns mean.
Students use counting, measuring, or simple math to back up what they observed in a science activity. A measurement or number helps explain why something happened or what they found out.
Students look at what they observed or tested, then use that evidence to explain why something happened or to come up with a way to fix a problem.
Students look at two different explanations or ideas, then use what they observed or tested to argue which one makes more sense.
Students gather information from books, videos, or observations, decide what is useful, and share what they learned with others using words, drawings, or simple charts.
| Standard | Definition | Code |
|---|---|---|
| Asking Questions and Defining Problems | Students practice turning everyday curiosity into questions that can actually be tested. They also learn to describe a problem clearly enough that someone could design a solution for it. | MD-SCI.SEP.2.1 |
| Developing and Using Models | Students draw or build simple models to show how something works, like a diagram of a water cycle or a sketch of a bridge design. The model helps explain an idea they can't easily show with words alone. | MD-SCI.SEP.2.2 |
| Planning and Carrying Out Investigations | Students plan a test, run it, and record what happens to see if their idea holds up. | MD-SCI.SEP.2.3 |
| Analyzing and Interpreting Data | Students look at data from science activities, spot patterns in what they find, and explain what those patterns mean. | MD-SCI.SEP.2.4 |
| Mathematics and Computational Thinking | Students use counting, measuring, or simple math to back up what they observed in a science activity. A measurement or number helps explain why something happened or what they found out. | MD-SCI.SEP.2.5 |
| Constructing Explanations | Students look at what they observed or tested, then use that evidence to explain why something happened or to come up with a way to fix a problem. | MD-SCI.SEP.2.6 |
| Engaging in Argument from Evidence | Students look at two different explanations or ideas, then use what they observed or tested to argue which one makes more sense. | MD-SCI.SEP.2.7 |
| Communicating Information | Students gather information from books, videos, or observations, decide what is useful, and share what they learned with others using words, drawings, or simple charts. | MD-SCI.SEP.2.8 |
Second graders examine how everyday materials look, feel, and behave. They observe what happens when materials are mixed, heated, or cooled, and use those observations to explain why things change.
Students explore how pushes and pulls make objects start moving, stop, or change direction. They test what happens when forces are stronger or weaker and begin to see patterns in how things move.
Students investigate how energy shows up in everyday forms like light, heat, and sound, and explore what happens when energy moves from one object to another.
Students explore how waves move energy from one place to another, like sound traveling through air or light bouncing off a mirror. They also look at how waves carry information, the way a radio signal brings music into a room.
| Standard | Definition | Code |
|---|---|---|
| Matter and Interactions | Second graders examine how everyday materials look, feel, and behave. They observe what happens when materials are mixed, heated, or cooled, and use those observations to explain why things change. | MD-SCI.PS.2.1 |
| Motion and Stability | Students explore how pushes and pulls make objects start moving, stop, or change direction. They test what happens when forces are stronger or weaker and begin to see patterns in how things move. | MD-SCI.PS.2.2 |
| Energy | Students investigate how energy shows up in everyday forms like light, heat, and sound, and explore what happens when energy moves from one object to another. | MD-SCI.PS.2.3 |
| Waves and Information | Students explore how waves move energy from one place to another, like sound traveling through air or light bouncing off a mirror. They also look at how waves carry information, the way a radio signal brings music into a room. | MD-SCI.PS.2.4 |
Students look at how living things are built and how they work, from the tiny parts inside a plant or animal to the larger systems that keep it alive.
Students study how living things in a place depend on each other for food and shelter. They look at how plants, animals, and other creatures pass energy along when one eats another.
Students compare how parent plants and animals pass traits like color, size, or shape to their offspring, and notice which traits stay the same across generations and which ones differ.
Students look closely at living things to find what makes them alike and what makes each one different. That comparison helps explain how plants and animals have changed over long stretches of time.
| Standard | Definition | Code |
|---|---|---|
| Structures and Processes | Students look at how living things are built and how they work, from the tiny parts inside a plant or animal to the larger systems that keep it alive. | MD-SCI.LS.2.1 |
| Ecosystems | Students study how living things in a place depend on each other for food and shelter. They look at how plants, animals, and other creatures pass energy along when one eats another. | MD-SCI.LS.2.2 |
| Heredity | Students compare how parent plants and animals pass traits like color, size, or shape to their offspring, and notice which traits stay the same across generations and which ones differ. | MD-SCI.LS.2.3 |
| Biological Evolution | Students look closely at living things to find what makes them alike and what makes each one different. That comparison helps explain how plants and animals have changed over long stretches of time. | MD-SCI.LS.2.4 |
Students learn where Earth sits in the solar system and how the sun, moon, and planets move in repeating patterns. They also explore how Earth itself has changed over a very long time.
Students learn how Earth's land, water, air, and living things connect and affect each other. They look at what happens when rain fills a river, wind moves soil, or plants grow in rocky ground.
Students look at how things people do (like building roads or cutting down trees) change the land, water, or air, and how natural events like floods or earthquakes affect where and how people live.
| Standard | Definition | Code |
|---|---|---|
| Earth's Place in the Universe | Students learn where Earth sits in the solar system and how the sun, moon, and planets move in repeating patterns. They also explore how Earth itself has changed over a very long time. | MD-SCI.ESS.2.1 |
| Earth's Systems | Students learn how Earth's land, water, air, and living things connect and affect each other. They look at what happens when rain fills a river, wind moves soil, or plants grow in rocky ground. | MD-SCI.ESS.2.2 |
| Earth and Human Activity | Students look at how things people do (like building roads or cutting down trees) change the land, water, or air, and how natural events like floods or earthquakes affect where and how people live. | MD-SCI.ESS.2.3 |
Students figure out what a problem is, come up with ways to fix it, then test their ideas and keep improving them until the design works better.
Second graders explore how inventions shape everyday life and how people's needs shape new inventions. They look at real examples, like how clean water systems or traffic lights were built to solve problems communities actually had.
| Standard | Definition | Code |
|---|---|---|
| Engineering Design | Students figure out what a problem is, come up with ways to fix it, then test their ideas and keep improving them until the design works better. | MD-SCI.ETS.2.1 |
| Links Among Engineering, Technology, and Society | Second graders explore how inventions shape everyday life and how people's needs shape new inventions. They look at real examples, like how clean water systems or traffic lights were built to solve problems communities actually had. | MD-SCI.ETS.2.2 |
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.
Students spend the year asking questions, testing ideas, and explaining what they find. They look at how things move, how plants and animals live and grow, how weather and land change, and how to design simple things that solve a problem. Most learning happens by doing, not by reading from a book.
Ask why questions when something interesting happens. Why did the puddle disappear? Why does the ice melt faster on the sidewalk? A five-minute conversation about a real thing students can see does more than a worksheet.
Not really. The focus is on noticing patterns and explaining what students see with evidence. Knowing a few key words helps, but being able to say what happened and why matters more than reciting definitions.
Plant a bean in a cup and watch it grow. Sort rocks by size or color. Drop different objects and see which falls faster. Track the moon for a week. Cheap, slow, and hands-on beats anything fancy.
Many teachers start with life science in the fall when plants and animals are easy to observe outside, move to earth and weather in winter, and finish with physical science and a short design project in spring. Investigation skills run through every unit, not as a separate topic.
Recording data carefully and using that data to explain something. Students often jump to an answer before looking at what they actually saw. Short, repeated practice with simple data tables across units helps more than one big lesson on the scientific method.
Plan one or two short design tasks tied to a science unit. After studying animal structures, students design a tool that grabs like a beak. After studying weather, they design something that keeps a cup of water cool. The point is to test, fix, and test again.
Notice a pattern, ask a question about it, try something to find out, and explain what happened using what they saw. Students should also be able to describe basic needs of living things, simple weather patterns, and how a push or pull makes something move.