Structure, Function, and Information Processing

Scientific thinking is about asking questions, testing ideas, and using evidence to find answers. Instead of just guessing, scientists observe, experi

Life sciences focus on studying living organisms and their interactions with the environment. Scientists in this field explore everything from microsc

The scientific method is a structured way to answer questions and test ideas. Scientists follow these steps to ensure their investigations are organiz

A scientific theory explains natural events using facts, experiments, and observations. Scientific theories are not just guesses but well-tested expla

Elements and compounds are fundamental building blocks of matter. An element is a pure substance made up of only one type of atom, such as carbon (C)

Organic compounds are the foundation of life. They contain carbon and are present in all living things, including plants, animals, and humans. Scienti

Science and Engineering Practices (SEP): Planning and Carrying Out InvestigationsScientists plan and conduct investigations to understand how macromol

The pH scale measures how acidic or basic a substance is. It ranges from 0 to 14. A pH below 7 indicates an acid, while a pH above 7 indicates a base.

Cell theory is one of the fundamental principles of biology. It states that

Microscopes are essential tools in science that allow us to see objects too small for the naked eye. They have helped scientists discover cells, bacte

All living things are made of cells, but not all cells are the same. Cells can be classified into two main types: prokaryotic and eukaryotic. Prokaryo

The nucleus is one of the most important organelles in eukaryotic cells. It acts as the control center, storing genetic material (DNA) and directing t

The cell membrane is a thin, flexible, semipermeable layer that surrounds the cell, regulating what enters and exits. It serves as a protective barrie

Cells must move materials in and out to survive. This process, known as cell transport, allows nutrients to enter, waste to exit, and essential molecu

Diffusion is the movement of molecules from an area of high concentration to an area of low concentration. This process occurs in liquids and gases an

Osmosis is the movement of water molecules across a selectively permeable membrane from an area of low solute concentration (fewer dissolved substance