Topic: Ecosystems

Sea slug animal or plant

Science Middle School

Sea Slug: Animal or Plant?

Life Science Genetics Ecosystems Oceans DNA Ecology

The little green sea slug is a puzzle to scientist because it can live in fresh water. Scientists discover the sea slug uses photosynthesis like a plant and has the DNA of a slug and algae.This audio story raises the question of whether the sea slug is an animal or a plant.

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Ocean acidification

Science Middle School

Shellfish on your Dinner Plate Threatened by Ocean Acidification

Environment Ecosystems Oceans chemistry

The increasing acidity of the oceans could eventually affect your dinner plate. This public radio story begins in a factory where workers are shucking shellfish. It looks at a shellfish producer and how the company has had a hard time producing juvenile oysters or “seed” because of the increase of CO2 in the ocean. The story examines the impact of ocean acidification on the seafood we eat.

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Somethings in the water hole

Science Middle School

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Microbes in the Water Hole

Life Science Environment Ecosystems Human Impacts Ecology

While popular swimming holes are commonly tested for bacteria, few are tested for protozoans. This audio story discusses the problem of protozoan-caused illnesses for swimmers in rivers, lakes and ponds. The story distinguishes between different types of microbes, and is an excellent introduction to classification of microorganisms and/or classification in general.

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Fracking and earthquakes

Science Middle School

Research Shows Fracking Causes Earthquakes

Earth and Space Science Environment Ecosystems Geology Energy Forces and Newton's Laws

Hydraulic fracturing or fracking is the process of putting liquid into shale to remove natural gas. There's concern that waste water from fracking that is put back into the ground is causing earthquakes. This public radio story explores the relationship between fracking and earthquakes.

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Dinoflagellates

Science Middle School

Microscopic Marine Organisms Can be Beautiful and Deadly

Life Science Earth and Space Science Ecosystems

Dinoflagellates (tiny marine microbes) are extremely common and important for aquatic ecosystems. This public radio story introduces the world of dinoflagellates in a very creative way – through song and a show production! You will learn that dioflagellates can be beautiful if they are involved in bio luminescence but they can also be deadly, when they are involved in red tide.

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Fish sounds

Science Middle School

Fish Sounds Indicate Behavior

Life Science Earth and Space Science Ecosystems Oceans

Marine biologists are studying the sounds that fish make. They believe that sounds are key to understanding fish behavior. This audio story explores how listening to fish may also be a way to help protect them. By studying the sounds that fish make when trying to attract mates and when breeding, biologists may be able to stay clear of them during those times to help them reproduce more productively.

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Fungi

Science Middle School

Fungi Sustains Ecosystems

Life Science Ecosystems Nutrition Plants

Fungi play a crucial role in decomposition. This audio story emphasizes the destructive power of molds, as well as their vital importance in sustaining ecosystems. You'll be transported to a forest to learn how and why fungi is all around us.

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Losing linnaeus

Science Middle School

DNA Changes the Linnaean Classification System

Life Science Ecosystems Ecology Plants

The naming of every living thing has it's place because of a Swedish biologist. This public radio story is about the system we use to organize life called Linnean system, named after Swedish botanist Carl Linnaeus. But now new DNA technology is changing the way to think about the classification system.

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Giant squid eyes

Science Middle School

Giant Squid Eyes

Life Science Animals Ecosystems Oceans

Scientists have wondered why giant squid and colossal squid have such enormous eyes. Their eyes are the size of basketballs. Their thinking about this question has been hampered by the rarity of these animals and the difficulty of preserving eye specimens. Using some clever techniques and luck, researchers have been able to measure the size of giant squid eyes. This has led to an interesting hypothesis about why their eyes are so enormous.

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Bee deaths and crop consequences

Science Middle School

Bee Deaths and Crop Consequences

Life Science Environment Ecosystems Reproduction

Over the past several years honeybee colonies have declined dramatically. There is no consensus over a single cause, and in fact, scientists point to multiple reasons for this problem. An important, yet often overlooked factor is basic land use decisions. Listen to learn about the importance of the symbiotic relationship between honeybees, flowers and humans, and what kids can do to help promote honeybees and other pollinators

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Bees and electric fields

Science Middle School

Bees and Electric Fields

Life Science Earth and Space Science Ecosystems Evolution Electricity Reproduction

Flowers have many ways of attracting bees for pollination. Bees are looking for nectar and pollen when they visit plants and flowers, as well as various colors, patterns, and shapes. Recently scientists have discovered a new way that flowers attract bees. They can sense the electric fields around flowers. Listen to hear about the natural positive charges of bees, the negative charges of flowers, and how the electric attraction works for pollination to happen.

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