Scientific Method & Introduction to Biology
What science is, variables, controls, and good experimental design.
Biology
Explore comprehensive lessons, activities, and resources covering core Biology topics.
Hands-on virtual investigations · Grades 9–12
Science Lab
Build an apparatus, follow one task at a time, collect repeated measurements, and explain the evidence. Seven guided labs include teacher support and printable reports.
Cell Structure & Function
Prokaryotes vs. eukaryotes, organelles, and specialization.
Cell Transport & Homeostasis
Diffusion, osmosis, active transport, and maintaining balance.
Cell Energy: Photosynthesis & Respiration
How cells capture, convert, and use energy to power life processes.
Cell Division: Mitosis & Meiosis
Growth, repair, and gamete formation; chromosomes and the cell cycle.
DNA, RNA & Protein Synthesis
Replication, transcription, translation, and gene expression.
Genetics & Heredity
Mendelian inheritance, Punnett squares, and modern genetics.
Classification & Taxonomy
Binomial nomenclature, phylogeny, and the tree of life.
Evolution & Natural Selection
Evidence for evolution, adaptation, and speciation.
Human Body Systems
Structure and function across the major organ systems.
Ecology & Ecosystems
Energy flow, cycles of matter, populations, and communities.
Biodiversity & Conservation
Species diversity, threats, and strategies for sustainability.
Biotechnology & Genetic Engineering
CRISPR, cloning, GMOs, and bioethics in modern biology.
Microorganisms & Viruses
Bacteria, protists, fungi, and viral structure and replication.
Scientific Skills & Lab Safety
Safety symbols, measurement, graphs, and data analysis.