Showing results 1 to 20 of 222
A Little Drop of Water: Cohesion
Learners explore water's property of cohesion through two investigations.
This is a simple and fun activity for learners to explore water and colors.
Drop ShapeAdd to list Details
In this activity, learners get a closer look at the shape of a drop of water and a drop of oil. Learners first drip water onto wax paper and examine the shape of separate drops from a side view.
Chemical Footprint—Family Activity
In this multi-part activity learners examine non-point water pollution.
In this environmental science activity (page 3 of the PDF), leaners will identify and explain the causes of erosion.
A Funny TasteAdd to list Details
In this activity, learners explore the different salinities of various sources of water by taste-testing.
Changing the Density of a Liquid: Adding SaltAdd to list Details
Learners see that a carrot slice sinks in fresh water and floats in saltwater.
How Much Water is in that Cloud?Add to list Details
In this activity, learners working in pairs saturate a cotton ball using water drops from an eyedropper to demonstrate the high water capacity of clouds.
Absorb & RepelAdd to list Details
In this activity, learners investigate how different materials repel or absorb water. Learners use spray bottles to explore how everyday items like sponges, cardboard, feathers, etc.
Soap: Sometimes oil and water do mix!
In this activity (on page 2 of PDF), learners mix oil and water. Then, they add soap and observe what changes! The activity demonstrates how oil and water don't mix, except when soap is added.
The Scoop on HabitatAdd to list Details
Some aquatic organisms live in open water, while some live in soil at the bottom of a body of water.
Straining Out the Dirt
Learners take on the role of environmental engineers as they design water filters.
Exploring Products: Nano Sand
In this activity, learners explore how water behaves differently when it comes in contact with "nano sand" and regular sand.
Colors Collide or CombineAdd to list Details
Learners place multiple M&M's in a plate of water to watch what happens as the candies dissolve.
Salt 'n LighterAdd to list Details
In this activity, learners discover that as the salinity of water increases, the density increases as well. Learners prove this by attempting to float fresh eggs in saltwater and freshwater.
Free-Fall Bottles & Tubes
In this physics activity, learners conduct two experiments to explore free-falling.
Drying It OutAdd to list Details
In this activity, learners investigate and compare the rate of drying in different conditions.
In this activity, explore chromatography and the various colors that make up the ink in markers. Use this activity to investigate cohesion and adhesion.
Comparing the Density of an Object to the Density of WaterAdd to list Details
Learners compare the weight of equal volumes of wax, water, and clay. Learners discover that since the wax weighs less than an equal volume of water, it is less dense than water and will float.
Investigating Density Currents
In this lab activity, learners explore how to initiate a density current. Learners measure six flasks with different concentrations of salt and water (colored blue).