Environmental Science

In this simulation, you will learn how to use the key concepts and lab overview before you begin a laboratory simulation.

In this simulation, you will use the steps of the scientific method to design a controlled experiment to determine if pillbugs prefer sand or cornstarch.

Sampling Surfaces for Bacteria: In this simulation, you will isolate bacteria from various objects and grow them on an agar plate.

In this simulation, you will transfer bacteria using aseptic technique from a broth culture to a sterile agar plate and then observe growth after incubation.

In this simulation, one sterile broth tube will be inoculated with bacteria and one will not have bacteria added to serve as a negative control.

In this simulation, you will transfer bacteria using aseptic technique from an agar slant culture to a sterile agar slant and then observe growth after incubation.

In this simulation, you will learn about DNA profiling. This technique is commonly used in several fields to identify individual organisms by their genetic differences. DNA profiling will be used to determine the causative agent of a disease outbreak in several patients.

In this simulation, you will have the opportunity to perform molecular techniques commonly used in the field of biotechnology to create medically important compounds such as insulin and human growth hormone.

In this simulation, you will have the opportunity to perform molecular techniques commonly used in the field of biotechnology to create medically important compounds such as insulin and human growth hormone.

In this simulation, you will learn about density and different ways to calculate density.

In this simulation, you will learn about precipitation reactions and percent yields.

In this simulation, you will learn how to perform a titration using an indicator.


In this simulation, you will complete a differential white blood cell count (DIFF) manually using a prepared blood slide and a brightfield microscope.

In this simulation, you will measure the hematocrit of three blood samples from athletes.

In this simulation, you will measure the hemoglobin content of three blood samples from athletes.

In this simulation, you will apply antibodies to blood samples to determine the ABO and Rh blood types of the samples. 

In this simulation, you will identify and locate various pulse rate locations, measure and compare the pulse rate of different arteries, compare the relative intensity of the pulse within different arteries, compare the pulse rate at rest and after exercising, and compare the pulse rate of the body in the following positions: sitting, lying down, and standing.

In this simulation, you will measure blood pressure, determine the effect of body position on blood pressure, and determine the effect of exercise on blood pressure.

In this simulation, you will learn to assess cardiac function through electrocardiography (ECG).

In this simulation, you will learn how to assess cardiac function through auscultation (listening) of the heart valves with a stethoscope.

In this simulation, you will place sketches of the different phases of meiosis I and meiosis II in the correct order and label them, match micrographs of cells undergoing meiosis to the correct phase name, and look at microscope slides of cells in an ovary and testis and identify germ-line cells and structures.

In this simulation, you will place sketches of the different phases of mitosis in the correct order and label them, match micrographs of cells undergoing mitosis to the correct phase name, and look at a microscope slide of the tip of an onion root and identify cells undergoing mitosis.

In this simulation, you will view animal and plant cells under a microscope, identify and label basic cell structures on micrograph images and label cell structures on animal and plant cell diagrams.

In this simulation, you will test how efficiently yeast ferments different sugars, including glucose, a monosaccharide, fructose, a monosaccharide, sucrose, a disaccharide, and starch, a polysaccharide.

In this simulation, you will understand how cells can convert sugar molecules into usable energy using a process called cellular respiration and compare the volume of oxygen consumed by growing (germinating) soybean seeds and nongerminating soybean seeds in order to estimate the amount of cellular respiration occurring.

In this simulation, you will test how efficiently yeast ferments different sugars, including glucose, a monosaccharide, fructose, a monosaccharide, sucrose, a disaccharide, and starch, a polysaccharide.

In this simulation, you will perform a Benedict test on four unknown solutions to test for the presence and relative concentration of simple sugars.

In this simulation, you will perform a Benedict test on four unknown solutions to test for the presence of simple sugars such as maltose and glucose.

In this simulation, you will mix two unknown solutions with water to determine which unknown solution contains an emulsifier and look at the unknown solutions both macroscopically and microscopically.

In this simulation, you will test four unknown solutions for lipids by placing a drop on paper and waiting for the unknown solution to evaporate.

In this simulation, you will perform a Biuret test on starch, pepsin, and albumin solutions to test for the presence and concentration of protein.

In this simulation, you will learn methods that can be used to control the growth of microbes and ways to test the effectiveness of these methods.

In this simulation, you will learn methods that can be used to control the growth of microbes and ways to test the effectiveness of these methods.

In this lab simulation, you will learn about antimicrobial drugs and the common laboratory test that is used to determine their effectiveness.

In this experiment, you will be using agar gel as the semisolid media and potassium permanganate crystals as the solute.

In this lab, you will compare the rate of diffusion in a liquid to the rate of diffusion in a semisolid.

In this lab, you will compare the diffusion rate of two gases with different molecular weights in the air, hydrochloric acid (HCl) and ammonia (NH3).

In this simulation, you will examine the diffusion of iodine, starch, and glucose across an artificial membrane made of dialysis tubing.

In this simulation, you will investigate how the digestive enzyme amylase depends on pH for its activity.

In this simulation, you will identify the proper instruments necessary to perform dissections, review relevant anatomical terminology that is used to compare relative positions of structures, identify anatomical planes and axes, determine tissue orientation of prepared microscope slides, and identify different use cases for compound and dissecting microscopes.

In this simulation, you will perform the required steps to complete an earthworm dissection, perform longitudinal (lengthwise) and transverse (across) cuts to the earthworm, and observe and identify internal and external features peculiar to the earthworm and to the phylum Annelida.

In this simulation, you will observe and identify external anatomical features of the freshwater mussel; perform cuts to the ligaments and muscles to access and observe the mantle, visceral mass, muscular foot, and gills; and dissect the visceral mass to expose and identify several additional digestive and reproductive organs.

In this simulation, you will examine the head region and observe features of the mouth, review the position of each fin type and identify additional external structures, observe and identify characteristics of the scales and lateral line, remove the protective operculum to expose and observe characteristics of the gills, and dissect a section of the body wall to expose and identify internal structures.

In this simulation, you will identify external features of the cephalothorax and abdomen, remove the cuticle to expose the pericardial sinus and gills, dissect the pericardium to observe features of the heart, abdominal muscles, and structures of the digestive and reproductive systems, then remove and dissect the stomach to observe gastric teeth, and expose structures in the head region associated with the digestive, excretory, and nervous systems.

In this simulation, you will identify external features of the sea star appendages, oral and aboral surfaces, perform dissections of the arms and aboral surface to expose structures associated with support, locomotion, digestion, and reproduction, and use a dissecting microscope to examine structures of the appendages and central disc.

In this two-part simulation, you will review anatomical positions, dissect the ventral body wall to expose and identify glands and organs associated with the digestive, respiratory, endocrine, circulatory, urinary, and reproductive systems.

In this simulation, you will identify external features associated with locomotion and sensory reception, examine aspects of the buccal (oral) cavity, perform a dissection to expose internal organs of the body cavity and observe structures of the circulatory, digestive, excretory, and reproductive systems.

In this simulation, you will isolate DNA from a fresh filtrate of strawberries.

In this simulation, you will learn how to conduct and interpret an electrophoresis gel and determine the genotypes of individuals with regard to the gene that produces the protein TNF alpha.

In this simulation, you will examine DNA structure by labeling the components of a DNA molecule, labeling a DNA molecule undergoing DNA replication, and labeling a DNA molecule undergoing transcription to produce RNA.

In this simulation, you will perform and analyze three different rapid testing strategies. While we will practice these tests using the context of SARS-CoV-2, the testing techniques are often adapted for the rapid detection and identification of a large variety of infections, diseases, or conditions.

In this simulation, you will review the overall process of gene expression, label diagrams of transcription and translation, transcribe and translate a nucleotide sequence, and examine the effects of mutation on gene expression.

In this simulation, you will investigate the recruitment of motor units by recording and reading an electromyogram.

In this simulation, you will squeeze with 100 percent grip strength clench and maintain full force for as long as possible.

In this simulation, you will test the effect thyroid hormone has on temperature regulation and oxygen consumption by inhibiting its production with the drug PTU (propylthiouracil).

In this simulation, fish serve as the model organism to observe the effects of insulin and glucose on level of activity and alertness.

In this simulation, you will compare a human protein sample with four unknown animal serum samples.

In this simulation, you will order a series of fossils in layers of rock, view the forelimb bones of six vertebrate species, color-code the homologous bones among the limbs, and match each forelimb with its correct type of vertebrate.

In this simulation, you will identify the proper instruments for performing an eye dissection, identify the required steps to complete an eye dissection, perform a coronal cut of a cow eye, and identify the gross anatomy observed during an eye dissection.

In this simulation, you will find the nearest point at which two patients can still view objects clearly.

In this simulation, you will examine three patients to find the angle associated with each patient's astigmatism and determine the refracting power of lens necessary to correct the patients’ vision.

In this simulation, you will learn how to visualize your blind spot by adjusting the position of a test chart until a symbol becomes focused on your blind spot and it disappears from your vision.

In this simulation, you will use the Ishihara color test to determine if the patient has defective color vision and the degree of color vision impairment. If applicable, you will diagnose the patient’s color vision deficiency.

In this simulation, you will observe how a patient's two eyes work together to view and track a close object.

In this simulation, you will learn how to test a patient's eyes to observe the normal reaction of the pupils when exposed to varying levels of light.

In this simulation, you will use the Snellen eye chart to determine each patient’s vision rating. Then, if applicable, you will find the diopter required for a corrective lens prescription that improves the patient’s vision.

In this simulation, you will investigate how temperature affects the activity of an enzyme.

In this activity, you will measure enzymatic activity in two ways: the amount of substrate consumed and the amount of product produced.

In this simulation, you will investigate how pH affects the activity of an enzyme.

In this simulation, you will investigate how the concentration of an enzyme affects the total activity of the enzyme.

In this simulation, you will learn the names of and be able to place the phases of meiosis I and meiosis II into sequence.

In this simulation, you will learn how to read pedigrees and differentiate between autosomal and X-linked inheritance patterns.

In this simulation, you will be provided with a liquid bacterial culture sample, an agar plate for the quadrant streak isolation, and the necessary materials commonly used to transfer bacteria.

This simulation will teach you techniques used to separate microorganisms on a solid agar medium, using the pour plating technique.

In this simulation, you will be provided with a mixed agar plate culture, nutrient agar slants to inoculate, and the necessary materials commonly used to transfer bacteria.

In this simulation, you will be provided a liquid broth culture, nutrient agar plates, water blanks for dilutions, and the materials commonly used to transfer bacteria.

In this simulation, you will be provided with pre-made agar plates, a colony counter instrument, and materials commonly used when working with bacteria.

In this simulation, you will be provided with a spectrophotometer instrument, three different species of bacteria growing in nutrient broth, a reusable cuvette for sample measurement, water and media blanks for instrument calibration, and the necessary materials commonly used to transfer bacteria.

In this simulation, you will learn the appropriate lab etiquette and regulations that are important to maintain your own safety and the safety of others around you.

This simulation is meant to describe the most strict laboratory precautions.

In this simulation, you will determine the phenotypic ratio of white and green tobacco seedlings from a monohybrid cross and determine parental genotype from observed phenotypic ratios of offspring.

In this simulation, you will be given fruit fly cultures containing wild type and four different mutants, and then you will differentiate between male and female fruit flies, differentiate phenotype associated with body color, eye color, and wing length, and match the flies in each culture to the correct phenotype.

In this simulation, you will be given a vial of fruit flies with an unknown wing mutation, and then you will observe offspring phenotypes, determine ratio of offspring phenotypes, and predict parental genotypes based on phenotypic ratio of offspring.

In this simulation, you will predict the phenotypic ratio of a dihybrid cross in corn plants with kernels of different color and texture, count the number of different kernel types following a dihybrid cross to determine the phenotypic ratio of offspring. and compare predicted and observed ratios to determine if they match.

In this simulation, you will predict the phenotypic ratio of a dihybrid cross in fruit flies with flies of different wing length and eye color, cross fruit flies heterozygous for wing length and body color traits, count the number of different fruit flies to determine the phenotypic ratio of offspring, and compare predicted and observed ratios to determine if they match.

In this simulation, you will predict the phenotypic ratio of an X-linked cross in fruit flies, cross fruit flies heterozygous for eye color trait located on the X chromosome (XRXr female and XRY male flies cross), determine the phenotypic ratios of offspring, and compare predicted and observed ratios to determine if they match.

In this simulation, you will learn about units of length in the metric system.

In this simulation, you will measure weight using a scale and learn about units of weight in the metric system.

In this simulation, you will learn about units of volume in the metric system.

In this simulation, you will learn about the unit of temperature in the metric system.

In this simulation, you will learn how the presence or absence of oxygen, an environmental factor, can influence the growth of microorganisms.

In this simulation, you will learn how osmotic pressure, an environmental factor, can influence the growth of microorganisms.

In this simulation, you will select a hypothesis to conduct an experiment that allows for the determination of the temperature range for the growth of an organism.

In this simulation, you will learn how the presence or absence of oxygen, an environmental factor, can influence the growth of microorganisms.

In this simulation, you will learn how pH, an environmental factor, can influence the growth of microorganisms.

In this simulation, you will practice the use of a brightfield microscope.

In this simulation, you will learn how to correctly switch from the 40X high powered objective lens to the 100X oil immersion lens.

In this simulation, you will learn how to prepare a wet mount slide.

In this simulation, you will use microscopy to observe onion epidermal cells in order to identify some common structures found in plant cells.

In this simulation, you will use microscopy to observe human epidermal cells from a cheek cell (buccal) smear in order to identify some common structures found in animal cells.

In this simulation, you will use microscopy to observe, identify, and classify examples of varied prokaryotic and eukaryotic microorganisms.

In this simulation, you will use microscopy to observe and identify different types of epithelial tissues.

In this simulation, you will use microscopy to observe examples of loose connective tissue proper, dense connective tissue proper, supporting connective tissue, and fluid connective tissue.

In this simulation, you will use microscopy to observe and identify the different types of muscle tissue.

In this simulation, you will use microscopy to observe multipolar neurons within nervous tissue.

In this simulation, you will learn how to prepare a wet mount slide to view Euglena using a brightfield microscope and identify characteristic features and their functions.

In this simulation, you will create two bacterial strains: one resistant to streptomycin and one sensitive to streptomycin.

In this simulation, you will investigate natural selection in the peppered moth and see how the environment can affect the selection process.

In this simulation, you will demonstrate several different monosynaptic reflexes.

In this simulation, you will prepare a wet mount of pond water and observe a live protist, identify two types of pond water algae using a dichotomous key, and examine the protists Amoeba, Paramecium, and Volvox

In this simulation, you will examine osmosis using thistle tubes that are fitted with membranes over their large, open ends.

In this simulation, you will examine the effects of different solutions on cell volume by observing the effects of tonicity on red blood cells.

In this simulation, you will examine the effects of different solutions on cell volume by placing Elodea leaves in solutions with different tonicities.

In this simulation, you will be looking at the effects of different solutions on the rigidity (crispness) of potato strips.

In this simulation, you will measure the buffering capacity of artificial cytosol in response to the addition of an acid and compare this to both a known buffer solution and distilled water.

In this simulation, you will conduct an experiment to determine the effectiveness of different types of antacids as buffers.

In this simulation, you will use paper chromatography to separate different photosynthetic pigments in a chloroplast solution and identify different photosynthetic pigments based on their color.

In this simulation, you will assemble a volumeter, measure the change in the volume of oxygen produced during photosynthesis using a volumeter, and compare the rate of photosynthesis in Elodea plants exposed to green or blue light in order to determine if one wavelength of light is better for photosynthesis.

In this simulation, you will assemble a volumeter, measure the change in the volume of oxygen produced or consumed by Elodea plants using a volumeter, and determine the rate of volume change of oxygen as a measure of photosynthesis rate in Elodea plants when exposed to white light versus darkness.

In this simulation, you will identify the uptake of carbon dioxide due to photosynthesis and compare it to a negative control.

In this simulation, you will dissect a lily flower to identify its parts and examine characteristics of flower type, pollen grains, and ovule. You will also label structures involved in pollination, fertilization, and embryonic development, dissect two types of seeds and identify their parts, and determine type of seed: monocot or eudicot.

In this simulation, you will determine the bloom color of a bigleaf hydrangea grown in acidic soil, determine the bloom color of a bigleaf hydrangea grown in basic soil, and predict the bloom color of a bigleaf hydrangea grown in a soil of specified pH.

In this simulation, you will record plant responses to environmental stimuli in mustard plant seedlings.

In this simulation, you will dissect and examine the major features of a conifer stem, leaf, seed, and male and female cones and examine the gymnosperm life cycle.

In this simulation, you will examine stomata under the microscope, and compare stomatal density of plants that inhabit different climates (tropical, temperate, and desert). You will also record the rates of transpiration for 4 plant species under varying environmental conditions.

In this simulation, you will grow two species of the protist Paramecium, P. caudatum and P. aurelia, alone and together. You will compare population density data and growth curves of the populations of each species, as well as examine how competition for limited resources in the environment can affect population growth.

In this lab, you will use a bell jar model to simulate the volume and pressure changes that occur during respiration.

In this lab, you will perform spirometry on several patients to perform pulmonary function tests and diagnose pulmonary diseases.

In this simulation, you will collect animals and plants from a defined area in an ecosystem, bring these organisms to the lab to sort and count them, and calculate the Simpson’s biodiversity index.

In this simulation, you will select two different ecosystem sampling sites, formulate hypotheses about the differences between the two sampling sites, compare their abiotic and biotic factors, evaluate the data, and determine whether it supports your hypotheses.

In this simulation, you will determine the agonist and antagonist muscles for movements in the shoulder and elbow joints.

In this simulation, you will electrically stimulate a frog’s leg muscle using an electrode.

In this experiment, you will calibrate a spectrophotometer and measure the absorbance of different dye samples.

In this simulation, you will collect animals and plants from a defined area in an ecosystem, bring these organisms to the lab to sort and count them and calculate the Simpson’s biodiversity index.

In this simulation, you will practice the preparation of the major bacterial visualization protocol known as Gram staining.

In this simulation, you will learn about the reagents and perform the correct steps for an acid-fast staining procedure.

In this simulation, you will learn the stepwise approach of negative (background) capsule staining used to visualize bacterial capsular structures.

In this simulation, you will learn the stepwise approach used to stain bacterial spores so they can be recognized from actively metabolizing cells.

In this simulation, you will plant non-Bt corn and Bt corn varieties in growth chambers, vary the level of infestation of the European corn borer in the different chambers, measure the corn plant yields in weight of corn kernels produced, and compare yields among types of corn and levels of infestation.

In this simulation, you will isolate bacteria from various objects and grow them on an agar plate.

In these simulations, you will be provided with many different testing protocols that will help identify unknown bacteria.

In this simulation, you will perform a urinalysis of three samples of urine using the dipstick method.