Browse Interactives

Evolution of Large Scale Structure in the Universe

Vary two of the most important cosmological parameters, run the simulation and try to build our universe. Compare your simulated universe to real observations.

Discipline: Science
Audience: Student

Evolution of Túngara Frog Mating Calls

Use molecular information and observe female response patterns to learn about the mating calls of Physalaemus frogs. Examine the evolution of female preference for particular call characteristics.

Discipline: Science
Audience: Student

Five-Question Survey: What are your ideas about basic astronomy?

Find out your or your students' understanding of astronomy. Afterwards you can see how others answered the questions.

Discipline: Science
Audience: Teacher

Fun House Mirrors

Explore the effect of concave and convex mirrors. Combine concave and convex mirrors to design a fun house mirror that will create the distorted pictures of Melissa and Sam.

Discipline: Science
Audience: Student

Genetic Engineering: Translating an mRNA Sequence

Translate an mRNA sequence into an amino acid chain using a codon chart. Then match each codon with the correct amino acid.

Discipline: Science
Audience: Student

The Genetics of Resistance to HIV Infection

Explore the relationships between viruses, cells and the immune system, and the role of genes in disease resistance. See how mutations in an HIV receptor confer relative resistance to infection.

Discipline: Science
Audience: Student

Genetics: Complex Inheritance Patterns

Our blood types are transmitted through multiple allelic inheritance. Identify the antigens and antibodies of the four different blood types: A, B, AB and O.

Discipline: Science
Audience: Student

Genetics: Sex Linkage

Some traits, such as colorblindness, are related to gender. Complete a Punnett square showing the possible genotypes of children born to a colorblind mother and a father with normal vision.

Discipline: Science
Audience: Student

Gray Whales

Track gray whale migration. Use live data to observe migration patterns.

Discipline: Science
Audience: Student

Groups: Ionic Bonding

Use your knowledge of families of elements. Create compounds by combining individual ions.

Discipline: Science
Audience: Student

Many sources of hazardous waste can be found in your own home and require special disposal. Can you determine which household items are hazardous, which can be recycled, which go out with regular household trash and which should be washed down the drain?

Discipline: Science
Audience: Student

Human Genome: Transcribe this DNA

Review the different combinations of nucleotides that form pairs. Then move nucleotides into their correct places on the RNA strand to transcribe the DNA.

Discipline: Science
Audience: Student

Human Genome: Transcription

Observe the process of transcription at the level of the nucleus. See how the information in a segment of DNA (gene) is copied into another type of genetic material called messenger RNA.

Discipline: Science
Audience: Student

Hummingbirds

Observe hummingbirds and report their sightings online. Share and review the sightings with other students/classrooms to track hemispheric migratory patterns.

Discipline: Science
Audience: Student

Isotopes, a Weighty Matter: Isotope Quiz

You will be presented with three different isotopes of the same element. See if you can calculate the atom's average relative mass.

Discipline: Science
Audience: Student

It's Elementary: Building Elements

Use your knowledge of scientific notation systems used to describe orbital configuration. Build up orbitals and electrons piece by piece in order to construct a given element.

Discipline: Science
Audience: Student

Laser Cooling

Slow a sample of fast-moving atoms with a laser to capture them in a trap by setting the temperature of the oven and adjusting the strength of the magnets. Once trapped they can be cooled and used in a variety of experiments.

Discipline: Science
Audience: Student

Made from Dots

Notice how magazines print photos using dots made up of percentages of only three colors and black. Try your hand at using percentages of cyan, magenta and yellow to match the magazine color displayed.

Discipline: Science
Audience: Teacher

Melting Rocks

Turning solid rock into liquid magma involves changing its temperature, pressure and water content. Try your hand at melting rock to create magma.

Discipline: Science
Audience: Student

Monarch Butterflies

Observe monarch butterflies and report their sightings online. Share and review the sightings with other students/classrooms to track hemispheric migratory patterns.

Discipline: Science
Audience: Student