Curated OER
Investigating the Effect of Salinity on the Density and Stability of Water
Water with varying amounts of dissolved salt are dyed and then used to compare densities. The objective is to discover the effect of salinity, and therefore density, on ocean water on the stability of the ocean. Many branches of science...
Curated OER
The Movement of Ocean Water-Science Puzzlers, Twisters & Teasers
In this earth science worksheet, students complete 19 questions about oceans and the movement of ocean water in the form of puzzles, word scrambles, and brain teasers.
American Museum of Natural History
What's the Big Deal About Water?
It may seem simple, but water is one of the most unique substances on Earth. An interactive online lesson describes its properties and importance in so many different situations. Learners interact with the lesson to learn the role water...
Curated OER
The Great Ocean Conveyor
Students investigate water density. In this water density lesson, students conduct an experiment with food coloring, water and salt to see how the salt effects bodies of water.
NOAA
Please Pass the Salt
Salinity is the focus of two experimenters that work to answer the question, How does salt change the physical properties of water? Super scientists compare the freezing rate of salt and fresh water, combine the two waters to observe how...
Scholastic
Study Jams! Earth's Oceans
Enjoy beautiful images and ocean facts together with the slide show, then see how much you absorbed by taking the quiz. Some of the topics covered in the presentation include water pressure, sunlight in the ocean, the names and locations...
Curated OER
Finding the Deep Water Masses of the Atlantic Ocean
Learners describe the role of density in driving deep ocean currents and the density layers of the ocean. They determine that the ocean is one continuous body of water with global currents that interact, with water surrounding all...
Curated OER
Is the Hudson River Too Salty to Drink?
Learners explore reasons for varied salinity in bodies of water. In this geographical inquiry lesson, students use a variety of visual and written information including maps, data tables, and graphs, to form a hypothesis as to why the...
Curated OER
Water Layering and Circulation
Students examine relationships and interactions between different types of water. They experiment with colored water of different temperature and salinity and discuss how the results relate to real ocean currents.
Curated OER
Water Topics
In this science worksheet, students focus on the role of water in the environment and its many uses. They answer questions in the multiple choice and short answer form.
Curated OER
Liquid Rainbow
Students develop their own techniques for drawing a small sample of solutions into a straw. They hypothesize ways to increase the density of water, and discuss how salt-free rainwater tends to float on top of salty seawater.
K12 Reader
Water Water Everywhere
The protection of our water supply is the subject of an article used in this cross-curricular reading comprehension worksheet. After studying the passage, readers use information from the text to respond to a series of comprehension...
Curated OER
Properties of the Ocean: Change
Students research and create a visual presentation on the seasonal salinity of the Earth's oceans. They apply the research in a simulation of a lab disaster in which they must relabel ocean samples.
Space Awareness
Ocean Acidification
Learn the science behind ocean acidification and its effects on ocean wildlife. Young scientists conduct a laboratory investigation that monitors the acidity level of water. While burning a candle, learners capture the carbon dioxide in...
Curated OER
Sea Water Freeze
Middle schoolers observe how salinity affects the time it takes water to freeze. They participate in an experiment to determine that ice is essentially salt-free whether formed from fresh or salt water
Polar Trec
Nature's Density Column
Nature provides density columns in the polar regions that provides food for many animals. Young scientists build their own density columns with water in order to answer analysis questions. Through a slideshow presentation, scholars...
Curated OER
Salty Sea Water
Students conduct an experiment to find out if there is salt in the ocean. In this scientific inquiry lesson, students pour a cup of salt water onto an aluminum plate and observe the changes over a few days. Students complete an included...
Curated OER
Hot, Cold, Fresh and Salty
Students observe the effects of layering water and what is more or less saline than normal. In this geoscience activity students create saline solutions, layer them and observe how the water becomes different temperatures in different...
Curated OER
Major American Water Routes
Sixth graders locate and identify the major bodies of water and waterways in the United States. Through a simulation activity, they describe how early explorers would have described their surroundings. Working in groups, they create...
Curated OER
Oceans of Fun
Here is a great hands-on activity that should lead to a greater understanding of salt water, why the ocean is salty, and how ocean waves are formed. This terrific, old-school lesson has clearly described activities, and all of the...
Curated OER
Water Is Cool!
Students explore the importance of water. In this water lesson, students view a table to determine the amount of water found in the oceans, lakes, atmosphere, and streams. Students discuss ways to be a good steward of water.
Curated OER
Salty Solutions
Students measure salt content in water. They determine salt content of four samples using a hydrometer.
Curated OER
Salt Water vs. Fresh Water
Students explore why the oceans do not freeze. They explain why they think the Atlantic Ocean does not freeze. Students are given background information about what they are doing. They create a hypothesis about what they believe...
Curated OER
Why Is The Sea Salty?
Students observe how salt concentration increases in water and how salt remains after water evaporates. In this salty sea lesson plan, student use rock salt, water, containers, and strainers to observe that salt increases each time new...