Showing results 1 to 20 of 40
A Funny Taste
In this activity, learners explore the different salinities of various sources of water by taste-testing.
Drying It Out
In this activity, learners investigate and compare the rate of drying in different conditions.
Water Body Salinities I
In this activity, learners investigate the different salinity levels of oceans, rivers and estuaries.
In this activity, learners explore sublimation by conducting experiments with dry ice.
Cool TreesAdd to list Details
This warm weather activity introduces learners to the impact trees have on blocking the sun's heat and reducing temperature on the Earth's surface.
Desert Water KeepersAdd to list Details
In this outdoor, sunny day activity, learners experiment with paper leaf models to discover how some desert plants conserve water.
How can Clouds Help Keep the Air Warmer?
In this activity, learners explore how air warms when it condenses water vapor or makes clouds.
LEGO® Chemical Reactions
This activity uses LEGO® bricks to represent atoms bonding into molecules and crystals. The lesson plan is for a 2.5 hour workshop (or four 45-minute classes).
Weather Stations: Phase Change
In this activity, learners observe the water cycle in action! Water vapor in a tumbler condenses on chilled aluminum foil — producing the liquid form of water familiar to us as rain and dew.
Mixtures and Solutions
This activity was designed for blind learners, but all types of learners can use it to investigate heterogeneous and homogeneous mixtures and solutions, identify the differences, and explore the conce
How Does Water Climb a Tree?
In this activity, learners conduct an experiment to explore how water flows up from a tree's roots to its leafy crown.
Water: Clearly Unique!Add to list Details
In this activity on page 4 of the PDF (Water in Our World), learners conduct some quick and easy tests to determine the differences between water and other liquids that look very similar to water.
From Gas to Liquid to SolidAdd to list Details
What causes frost to form on the outside of a cold container? In this activity, learners discover that liquid water can change states and freeze to become ice.
In this chemistry activity (page 3 of the PDF), learners will learn about crystals by growing their very own.
Cool It!Add to list Details
Learners make a refrigerator that works without electricity. The pot-in-pot refrigerator works by evaporation: a layer of sand is placed between two terra cotta pots and thoroughly soaked with water.
Personal FanAdd to list Details
Cool off in the heat with this project! Learners use simple materials to build a fan that runs on a motor.
Go with the Flow
Learners draw comic-style pictures to show the water cycle. From a starting picture, one learner draws what happens to the water in the next panel, then passes the comic strip to another learner.
Wonderful WeatherAdd to list Details
In this activity, learners conduct three experiments to examine temperature, the different stages of the water cycle, and how convection creates wind.
Plant PipingAdd to list Details
Learners build models to learn about the special cells and structures that plants use to move water from their roots up through the stems and leaves.
Determining the Amount of Transpiration from a Schoolyard Tree
In this activity, learners calculate the number of milliliters of water a nearby tree transpires per day.