Biology Simulations

Explore an adult male reference body in 3D. Reveal 14 anatomical systems, search thousands of named structures, isolate organs, and pull 2,209 modeled pieces apart to see how the body is organized.

Explore the head and neck in 3D: 643 source meshes across 14 layers, 47 facial and masticatory muscles, and 77 drawn nerves, vessels and glands the source scan omits. Open any tooth onto its own pulp canal, and follow the seven stages of tooth development.

Free interactive photosynthesis simulation. Explore photosynthesis hands-on online — great for whole-class or independent practice.

Free interactive food webs simulation. Explore food webs hands-on online — great for whole-class or independent practice.

Free interactive ecosystems simulation. Explore ecosystems hands-on online — great for whole-class or independent practice.

Free interactive the digestive system simulation. Explore the digestive system hands-on online — great for whole-class or independent p

Free interactive human body systems simulation. Explore human body systems hands-on online — great for whole-class or independent pract

Free interactive plant growth simulation. Explore plant growth hands-on online — great for whole-class or independent practice.

Follow oxygen-rich and oxygen-poor blood round the loop from the heart to the lungs and body. Change heart rate and stroke volume and watch cardiac output — the blood moved each minute — respond.

Watch the lungs swell and empty with every breath as air moves in and out of the windpipe. Change breaths per minute and the air in each breath, and see how much air is moved a minute.

Free interactive animal adaptations simulation. Explore animal adaptations hands-on online — great for whole-class or independent pract

Free interactive pollination simulation. Explore pollination hands-on online — great for whole-class or independent practice.

Free interactive natural selection simulation. Explore natural selection hands-on online — great for whole-class or independent practi

Pick each parent's pair of alleles and build the Punnett square. Read off the chance of each genotype, see which children show the trait and which hide it, and try the classic crosses.

Free interactive cell structure simulation. Explore cell structure hands-on online — great for whole-class or independent practice.