Biology
Cells, genetics, ecosystem, our body. Observe invisible life phenomena.
20 experiments
Times include reading the explanation and completing all six steps. Your pace may vary.
Diffusion and concentration gradients
Observe the process of reducing the concentration difference due to the random movement of particles.
Osmosis and cell volume
Connects the difference in concentration of solutes that cannot pass through the membrane with the movement of water.
Cell size and material exchange
Compare surface area/volume ratio and diffusion time when cells grow.
Mitosis and chromosome number
Track chromosomes and DNA amount according to division stage
Enzymes and substrate concentration
Explore why the reaction rate saturates when the substrate increases.
Limiting factors in photosynthesis
Change light and carbon dioxide to find out which conditions limit photosynthesis
Cellular respiration and oxygen use
Measure oxygen changes in a virtual respiratory system by changing biomass and temperature
Transpiration and the environment
Compare moisture loss according to humidity, wind, and pore conditions
Mendelian monohybrid crosses
Change the parent genotype and compare the theoretical ratio with the actual sample ratio.
Independent assortment of two traits
Compare the combinations made by two genes on different chromosomes
Meiosis and genetic diversity
Examines the impact of placement and crossover of homologous chromosomes on gamete combination
Transcription, translation, and mutations
Compare amino acid sequences created by changing short DNA sequences.
Lung model and breathing
Identify the principle that changes in the position of the diaphragm change the volume of the thoracic cavity and air movement
Blood circulation
Tracks blood movement along heart valves and both circulations
Blood glucose and negative feedback
Observe the process of hormonal feedback reducing changes caused by diet.
Nerve signals and response pathways
Compare the pathways and transmission delays of reflex and conscious responses.
Population growth and carrying capacity
Compare unlimited growth and resource-limited growth under the same conditions.
Predator–prey dynamics
Observe the increase/decrease and time difference between the two populations.
Natural selection and genetic drift
Compare differences in survival depending on environment and chance sampling effects
Quadrat sampling
Survey part of the virtual grassland to estimate the total population.