PBS
Pbs Kids: Colored Water Convection
This PBS site allows users to learn more about water convection as they discover how to demonstrate the way convection currents form. A fun science project!
Other
Project Wet: Discover Water
Interactive opportunities which emphasize the impact water has on our lives. Explore watersheds, ocean water, fresh water sources, and ways to use water responsibly by engaging in activities, coloring pages, and short quizzes.
Science Education Resource Center at Carleton College
Serc: Mn Step: Sinking and Floating Water
An experiment in density where colored water, both hot and cold, are poured into containers of water at room temperature. Young scholars will observe that the warm water rises and the cold water sinks due to their different densities.
TeachEngineering
Teach Engineering: Dna Forensics and Color Pigments
Students perform DNA forensics using food coloring to enhance their understanding of DNA fingerprinting, restriction enzymes, genotyping and DNA gel electrophoresis. They place small drops of different food coloring ("water-based paint")...
American Chemical Society
Inquiry in Action: Using Color to See How Liquids Combine
An activity where students use the characteristics of liquids when they combine with water to tell the differences between them. Activity includes both student and teacher instructions.
Other
Grace Communications Foundation: Water Program
Tools and information focusing on water conservation and actions people can take to reduce their "water footprint" in daily life. Proves a "water footprint" calculator, tips for saving water around the house, and a collection of...
Museum of Science
Museum of Science and Industry: Online Science: Color Changing Carnations
A popular plant experiment where food coloring is added to the water that flowers sit in, to see how this affects the color of the flowers. It demonstrates how water travels through the xylem of a flower stem.
Other
St. Johns River Water Management District: Raleigh's Den
Enter the world of the river otter and learn about conservation efforts at Florida's St. Johns River system. Meet Raleigh Otter and learn about his habitat and daily activities. Includes facts about otters and links to coloring pages and...
TeachEngineering
Teach Engineering: What's Down the Well?
This activity looks at physical models of groundwater and how environmental engineers determine possible sites for drinking water wells. During this activity, students will create their own groundwater well model using a coffee can and...
Center of Science and Industry
Cosi Columbus: Coffee Filter Rainbows
Science experiment that demonstrates chromotography. Includes full list of materials, procedures, and scientific explanation of what happens with different colors when they are soaked with water.
TeachEngineering
Teach Engineering: Chromatography Lab
To increase students' awareness of possible invisible pollutants in drinking water sources, students perform an exciting lab requiring them to think about how solutions and mixtures exist even in unsuspecting places such as ink. They use...
Science Education Resource Center at Carleton College
Serc: Investigating Chromatography: Separating Pigments
In this chromatography experiment, learners will investigate pigments used to create a black, water soluble marker. An extension can be done using primary and secondary colored water soluble markers as well as spinach leaves.
PBS
Pbs Teachers: Paper Towel Chromatography Experiment
Observe the separation of colors derived from black marker ink by wicking water through a marker line on a paper towel.
TeachEngineering
Teach Engineering: Engineering for the Earth
Young students are introduced to the complex systems of the Earth through numerous lessons on its natural resources, processes, weather, climate and landforms. Key earth science topics include rocks, soils and minerals, water and natural...
Other
Ocean Park Hong Kong
This site offers a description of this seaworld-like park. It is a very colorful and informative site with a lot of information about the park. Follow the 'Education' link at the bottom to access the section with learning activities.
Other
Top End Sports: Hydration for Athletes
Find brief articles that will teach you about the importance of hydration and how to stay hydrated during sports and physical activity. Learn about choosing drinks, drinking enough water, and checking yourself for hydration and...
Other
K 3 Learning pages.com: Earth Day Links
How can you celebrate Earth Day in your classroom? This collection features several downloadable Earth Day worksheets including word searches and coloring pages. Students and teachers can plan the perfect way to recognize the environment.
Enchanted Learning
Enchanted Learning: Pond Life Animal Printouts
Filled with printable pages of both plant and animal pond life, Enchanted Learning features fact sheets with color pictures.
Other
60 Second Science: Rolling Down Ramps Experiment
Explore the characteristics of inclined planes while observing how drops of colored water flow down a ramp and on different surfaces.
Optical Society
Optical Society of America: Optics for Kids: Release the Rainbow
A simple activity to demonstrate how light separates into colors when it passes through water acting as a prism.
Optical Society
Optical Society of America: Optics for Kids: Black Is Black or Is It?
An experiment with a coffee filter and a marker to see what happens when water touches a black dot, or any other color. With links to several scientific, academic articles that explain what is happening.
American Chemical Society
Inquiry in Action: Changing the Density of a Liquid: Heating and Cooling
In this activity, students will investigate whether the temperature of water affects its density. Students will place colored hot and cold water in a cup of room-temperature water to see that cold water sinks while hot water floats. Then...
TeachEngineering
Teach Engineering: One World Ocean
In this activity, students learn about ocean currents and the difference between salt and fresh water. They use colored ice cubes to see how cold and warm water mix and how this mixing causes currents. Also, students learn how surface...
American Chemical Society
Inquiry in Action: Matter on the Move
A lab demonstration for students to see that food coloring moves faster in hot water versus cold water. Lab activity includes student and teacher information.