Since most plankton is smaller than we can see, they must be looked at using a microscope. They are usually strained from the water using fine mesh nets or sieves with tiny holes. Typical plankton nets have a round opening and look like a funnel that leads into a collection bucket at the end of the net. The nets are
One of the simplest biological samplers, zooplankton nets are made in a wide variety of styles and sizes. The two nets in the MARMAP Bongo vertical-haul net system explained here each have a mouth diameter of about 25 cm.
Learn about how scientists measure salinity, temperature, and depth (CTD). Information can be found in Beginner, Intermediate, and Advanced levels, as well as in English or Spanish language.
What is it and why do we use it?
A CTD — an acronym for Conductivity, Temperature, and Depth — is the primary tool for determining essential physical properties of sea water. It gives scientists a precise and comprehensive charting of the distribution and variation of water temperature, salinity, and density that helps to understand how the oceans affect life
What is it and why do we use it?
An Acoustic Doppler Current Profiler, or Acoustic Doppler Profiler, is often referred to with the acronym ADCP. Scientists use the instrument to measure how fast water is moving across an entire water column. An ADCP anchored to the seafloor can measure current speed not just at the bottom, but also at
In this lesson, students will play a fun board game that teaches about the sources and types of some air pollutants, and how they affect the health of both people and the environment. Students will learn that not all pollutants are greenhouse gases. This game can be a lead-in for a discussion about climate change and what people can
In this article, PolarTREC teacher Elizabeth Eubanks recounts her experience bringing her students - three eighth-graders and two seventh-graders to a week-long research conference in Alaska. "Having my students present at an international professional science conference is above and beyond any experience that I can offer them as a science teacher".
Elizabeth Eubanks M.Ed (working with Angela Gilmour, Anne Jensen, Danielle Dickson, Leslie Pierce, and Rachel Potter) connected with PolarTREC and NOAA TAS. This lesson is inspired by the need to share the importance of the Bowhead Whale in relation to the culture of arctic people. It is a portion of an entire collaborative unit to be utilized between
Frontier Scientists puts you in the front row to observe breaking scientific news from leading Arctic scientists in Archaeology, Geology, Anthropology, the Humanities, Biology, Marine Biology, Ecology, Chemistry and more. Many videos on Arctic science are available from their website.
Do you wonder what Earth's Polar Regions are like? Where do polar bears live? Where do penguins swim? Why does the Sun never shine in winter in the Arctic? Why does aurora occur near the Earth’s Poles? How big are the Earth’s ice caps, and are they changing? The Earth’s Polar Regions are hosts to unique phenomena and ecosystems –