«But there have been few demonstrations of complete digital systems using this exciting technology. (sciencedaily.com)
Although there have been a few demonstrations that it is possible to store relatively small amounts of CO2 deep below the ground — largely to push more oil and natural gas to the surface — there is no commercial - scale power plant that both captures and stores greenhouse gases, Moniz adds. (scientificamerican.com)
Prelesson Preparation: Set up a few demonstrations, including models or pictures of animals, their scat, and their eggs. (edutopia.org)