Curated OER
Life Cycle of Salmon
After eight years of roaming in the ocean, salmon go back to the freshwater stream of their birth place to lay their own eggs. They jump, swim, and dive through obstacles to travel upstream. The salmon stop eating, lay their eggs, and...
Scholastic
Study Jams! Aquatic Ecosystems
Mia's friends are fish-sitting while she is away on vacation. Zoe divulges to Sam that different animals need different habitats, and that there are both freshwater and saltwater ecosystems. Examples of the kinds of organisms found in...
Crash Course
How Seawater Sabotages Ships: Crash Course Engineering #43
See how the seas wreak havoc on ships. The 43rd video in the Crash Course Engineering playlist focuses on marine engineering and how ships need to protect against corrosion from seawater and from marine life. It also looks at ways of...
Be Smart
Do Fish Pee?
Freshwater fish pee almost constantly, while saltwater fish pee very little. Scholars investigate the concept of homeostasis with a video lesson comparing fresh and saltwater fish. An episode describes how some fish absorb water, while...
Nature League
Invertebrates and Ocean Mixing - De-Natured
It's time to mix things up! Introduce biology scholars to the latest topic in marine research—invertebrates! The third installment in a five-part series of Invertebrates lessons explains the hypothesis that tiny, migrating shrimp are...
Be Smart
The Cosmic Origins of Earth's Water
Was Earth born as a Blue Planet? Discover where water came from with a video from an intriguing science playlist. The resource covers the three most likely origins of water, how scientists differentiate between comet and asteroid water,...
Veritasium
Buoyancy Quiz
Need to demonstrate buoyancy to your class? Rise to the occasion with a video from Veritasium! The narrator demonstrates how a golf ball behaves in dish detergent and saltwater, then adds the detergent to the saltwater for a surprising...
Crash Course
Jupiter's Moon
You'll be over the moon for an out-of-this-world video! Introduce your class to Jupiter's many moons with a brief but interesting resource. The narrator tells the stories of the four largest bodies, explains why Jupiter has...
Fuse School
Extraction of Salt
The three methods of extracting salt — evaporation of seawater, salt mining, and solution in water — are the focus of an informative video that includes additional interesting details, such as the fact that the word salary is...
Massachusetts Institute of Technology
Mit: Blossoms: Connection Between Water Desalination & Making Pickles
A video lesson combined with student group work about the desalination of seawater in areas where there is little access to freshwater.
PBS
Pbs Learning Media: Density and Buoyancy: Making Eggs Float
Why does an egg float in salt water? Learn about density and buoyancy in this video segment adapted from ZOOM. [3:02]
NASA
Science at Nasa: Science Casts: Power of Sea Salt
Aquarius is the first NASA sensor to track ocean salinity from space and aims to help uncover how the salinity of Earth's oceans is affecting our climate. [3:04]
Crash Course
Crash Course Kids 14.2: Water Water Everywhere
Now that you know about freshwater and saltwater you know that there's not that much freshwater for us (and other life) to get to. So how do different animals deal with different amounts of water where they live? In this episode of Crash...
NOAA
Noaa: Estuary Education: Creatures of Brackish Water
Find out how the salt composition in the waters of the estuary affects the organisms living there. [7:44]
PBS
Pbs Learning Media: Solar Still, Part I: Salt Water
ZOOM cast members use a homemade solar still to mimic the water cycle, separating pure water from a saltwater mixture. [3:34]
Crash Course
Crash Course Kids 14.1: The Basics of Fresh Water
We have a lot of water on Earth, but we also can't actually drink much of it or use it for farming. That's because most of the water on Earth is saltwater. We humans, like a lot of living things, need freshwater to survive. In this...