What does a student learn in StateAlabama,GradeGrade 7,SubjectScience?

Students learn what each part of a cell does, from the membrane that controls what enters and exits to the mitochondria that produce energy. They use diagrams or models to show how these structures keep the cell running steadily.

Students examine evidence to argue that all living things are made of cells, that the cell is the basic unit of life, and that all cells come from existing cells.

Students compare cells that have a nucleus (like plant and animal cells) to simpler cells that don't (like bacteria). They explain how that one structural difference shapes what each type of cell can do.

Students investigate how a cell's outer membrane acts like a selective gatekeeper, letting some substances pass through while blocking others. They design and run an experiment to see that control in action.

Photosynthesis and cellular respiration work as a pair. Plants use sunlight and carbon dioxide to build sugar, then living cells break that sugar down to release energy, cycling the same atoms through organisms again and again.

Students learn how certain bacteria survive without any oxygen by breaking down food in a different way to get the energy they need. Think fermentation in yogurt or cheese, where tiny organisms do the work.

Mitosis is how the body makes new cells that are exact copies of the original. Students explain why this copying process keeps complex organisms alive, healing, and growing.

Students learn what can go wrong when a cell copies itself. They look at how mistakes during that copying process can cause cells to divide in ways that harm the body, like uncontrolled growth.

Students learn how the body's major systems, like the heart, lungs, muscles, and skeleton, each handle a specific job and rely on one another to keep the body running. Cells, tissues, and organs are the building blocks of each system.

Carbon, nitrogen, and water move in continuous loops between living things and the nonliving world. Students trace how those cycles show that matter is never created or destroyed, just passed along.

Students look at real data, such as rainfall totals or food supply counts, to predict what happens to plants and animals when conditions in an ecosystem change. Both genetics and resource availability shape whether individual organisms and whole populations grow or decline.

Students look at real data to explain why animal or plant populations grow, shrink, or crash. Some causes, like a drought or a wildfire, hit every organism regardless of how crowded the area is. Others, like disease or food shortages, get worse the more packed together a population becomes.

Students study how animals, plants, and other living things affect one another, then use patterns they observe to predict what will happen when those relationships change in different ecosystems.

Students look at a real-world scenario, like a wetland losing habitat, and propose a plan to protect the mix of species living there and keep the ecosystem working for the people who depend on it.

Students study how animal behaviors like migration or courtship and plant structures like flowers or seed pods increase the chances that a species will reproduce successfully.

Students build diagrams or models to show why children don't look identical to their parents. The differences come from which genes, carried on chromosomes, each parent passes down.

Students trace how a single instruction in DNA gets copied into RNA and then used to build a protein. That protein does a job in the body, like carrying oxygen or fighting off germs.

Meiosis is the cell division that makes reproductive cells. Students model how meiosis shuffles and splits a parent's genetic information, producing offspring with new trait combinations not identical to either parent.

Students compare two ways living things reproduce: one parent passing on an exact copy of its traits, versus two parents combining traits to produce offspring that vary. They explain the trade-offs each method creates for survival.

Some gene variations help an organism survive, some cause problems, and some make no difference at all. Students use real evidence to explain why the same kind of change can have different effects depending on the organism.

Students learn how humans use technology to change which traits get passed down in plants, animals, and people. That includes selective breeding and genetic tools used in medicine and agriculture.

Fossils and living species leave behind clues about how body parts have changed across millions of years. Students study those clues to find patterns in how anatomy shifts, disappears, or stays the same over time.

Comparing embryos from different animals reveals family relationships that adult bodies don't show. Students study early developmental stages across species to find patterns that point to shared ancestry.

Natural selection is how a population slowly changes over time: traits that help animals survive and have offspring become more common, while less helpful traits fade out. Students ask questions about why those shifts happen across generations.