The World Health Organization (WHO) began the Global Polio Eradication Initiative (GPEI) in 1988 with the goal of eradicating polio. The main tool used to eliminate polio was the oral polio vaccine. Use this dataset to explore what has happened in different locations around the world since the GPEI efforts began.

Green plants use light energy to produce their own food with photosynthesis You may have already learned that plants require water and carbon dioxide and light for photosynthesis and produce oxygen and glucose sugar in the process. If one of those three inputs (water, carbon dioxide, or light) is in short supply, then photosynthesis will slow down or even stop. How does light intensity affect the rate of photosynthesis?

Climate change affects all life on earth. Predicting how a warming climate will affect species on earth is one of the biggest goals for climate researchers today. Despite the importance of this goal, a precise answer to the question of how climate change will affect species in the future is still being sought. One of the key places that scientists look for answers is in the past. Specifically they look to geologic data to provide insight into how past temperature changes and extinction rates have been correlated so that we can make predictions about the effect that our now warming climate may have on species currently living on our planet.

Covid-19 has affected nearly all of us in some way. The arrival of widespread vaccine use brought much optimism in the US and worldwide in late 2020 and early 2021. By October of 2021 more than 65% of Americans (76% of all eligible at the time of writing) have received at least one Covid-19 vaccine shot. However, throughout the late summer and fall of 2021, Covid-19 cases, hospitalizations, and deaths spiked throughout much of the US.

Surface Anomaly Temperatures from My NASA Data. This dataset was made by taking a subset of a larger NASA dataset. It records monthly temperature anomalies for nearly the entire globe from January 1880 through March of 2021. For the dataset in this activity, we haphazardly selected three locations each as samples for low, middle, and high latitudes. This dataset can be used to examine evidence for climate change and the ice albedo effect.

When we represent chemical reactions using balanced equations, the quantities of the reactants will always be fully consumed in order to produce the quantities of the products in the equation.

It is sometimes important to know how quickly a particular chemical reaction occurs. We can discern this information by measuring either the amount of reactant(s) consumed over time or the amount of product(s) produced over time.