What does a student learn in StateNorth Carolina,GradeGrade 8,SubjectScience?

Students study how physical and chemical properties of matter change when substances interact, and whether those changes happen in sealed containers or open environments.

Students sort substances into three groups: pure elements (one kind of atom), compounds (atoms bonded into a fixed recipe), and mixtures (ingredients that stay separate). The sorting depends on how the atoms inside are arranged.

Students draw or label a model of an atom showing where protons, neutrons, and electrons sit, what charge each carries, and how their sizes compare.

Students read patterns in the Periodic Table to explain why elements are arranged the way they are, connecting each element's physical traits and chemical behavior to its position on the table.

Students sort changes in matter into two groups: physical changes like cutting or melting, and chemical changes like rust forming or gas bubbling up. They explain what evidence tells them which type of change happened.

Students draw or use diagrams to show that atoms just swap partners during a chemical reaction. Nothing is created or destroyed, so the number of each type of atom on both sides of the equation stays the same.

Students learn what makes certain bacteria, viruses, and other pathogens dangerous and how they cause illness in living things.

Students compare viruses, bacteria, fungi, and parasites: what makes each one spread, how doctors treat infections caused by each, and how people can prevent getting sick in the first place.

Students learn the difference between an outbreak that spreads through one community and one that spreads across countries. They look at real data to understand how a disease travels, how it gets treated, and how it gets stopped.

Living things respond to both the other organisms around them and to non-living conditions like temperature, water, and sunlight. Students learn how those relationships shape where organisms live and whether they survive.

Students run experiments to see how changes in living things (like predators or prey) and non-living conditions (like water or shelter) cause animal and plant populations to grow, shrink, or shift.

Students map out how living things feed on, compete with, or depend on each other in an ecosystem. They explain what happens when those relationships go well or badly, covering predators and prey, parasites, and partnerships where both sides benefit.

Food does two jobs for every living thing: it supplies energy to move and grow, and it supplies raw materials to build and repair the body. Students explain how this works for animals and plants alike.

Food webs show how energy passes from plants to animals to decomposers. Students use diagrams to trace how water and carbon cycle through those same living things, connecting energy flow and matter in one system.

Students study how living things have changed over generation after generation, using fossils, DNA comparisons, and other evidence to explain why those changes happened.

Fossils and rock layers tell the story of how Earth and its living things have changed over billions of years. Students read that evidence to understand what life looked like long ago and how land itself has shifted over time.

Students use the position of rock layers and specific fossils found inside them to figure out which rocks are older and which are younger, without needing an exact date.

Fossils, rock layers, and fault lines are clues about Earth's past. Students use that physical evidence to build and defend an explanation of how Earth and its living things have changed over time.

Students learn how water moves through Earth's systems, from freshwater rivers and lakes to the brackish zones where rivers meet the sea, to the open ocean. Each system works differently and shapes the life and land around it.

Students study how humans change water systems (through dams, pollution, and land use) and how those changes come back to affect the water people drink, flood patterns, and coastal safety.

Students examine real water-quality data and build an argument for why clean water depends on ongoing monitoring, treatment standards, and responsible stewardship of local water sources.

Students look at real water-quality readings, like temperature, pH, and cloudiness, to judge whether a water source in North Carolina is safe to drink or use. They learn which conditions signal a healthy supply and which signal a problem.

Getting energy, whether from coal, wind, solar, or other sources, always has trade-offs. Students study how each method affects land, water, air, and living things.

Students sort energy sources into two groups: ones that naturally replenish, like sunlight and wind, and ones that run out, like coal and oil. They explain what makes each source fall into one category or the other.

Students pick a side on a real debate, like coal mining or wind farms, and back their position with evidence. They practice explaining how getting and moving energy affects the land, water, and air.

Students look at temperature records and industrial data to explain why average global temperatures have risen since the mid-1800s, connecting human activities like burning fossil fuels to measurable changes in Earth's climate.

Students compare how long different energy sources last and what happens to the environment when we keep using them. They look at why saving energy and using it wisely matters for the future.