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Showing results 1 to 20 of 25
  
Icy Investigations
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  In this activity, learners of all ages can enjoy experimenting with ice. Try this experiment at the kitchen table or in the great outdoors to encourage budding scientists to experiment with ice.
  
A Funny Taste
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  In this activity, learners explore the different salinities of various sources of water by taste-testing.
  
Salt 'n Lighter
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  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.
  
Art with Salt and Ice
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  This open-ended art project allows learners to create their own colorful ice sculpture by using rock salt and food coloring on a solid block of ice.
  
Crushing Test
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  In this activity, learners design a crushing test and discover that identifying and controlling the variables may be difficult.
  
We all Scream for Ice Cream
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  In this activity, learners observe how salinity affects the freezing point of water by making and enjoying ice cream.
  
That Sinking Feeling
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  In this quick activity, learners observe how salinity and temperature affect the density of water, to better understand the Great Ocean Conveyor.
  
Curious Crystals
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  Learners carefully look at four known household crystals.
  
Crystal Creations: Grow Spikes of Crystals in the Sun
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  This activity shows you how to make amazing crystal spikes using Epsom salt and the sun.
  
Make a Salt Volcano (Lava Lite)
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  This activity about density provides instructions for making a miniature "lava lite" with just salt, oil, water, and food coloring.
  Let's Go Ice Fishing
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  In this activity, learners are challenged to lift a floating ice cube out of a glass of water using just one end of a piece of string.
  
Crystal Stencil Stars
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  In this activity on page 6 of the PDF, learners dissolve Epsom salt in water and discover that the resulting solution can be used to create a work of art.
  
Causes and Effects of Melting Ice
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  In this activity, learners explore the concept of density-driven currents (thermohaline circulation) and how these currents are affected by climate change.
  
A Closer Look at Crystals
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  In this activity, learners compare different types of salt crystals under a magnifying glass.
  
Salt Painting
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  In this art meets chemistry activity, early learners discover the almost magical absorbent properties of salt while creating ethereal watercolor paintings.
  Build A Hydrometer
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  In this activity, learners will explore how a hydrometer works by building a working model and conducting experiments.
  
Eyedropper Hydrometer: Buoy your understanding of density
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  Build a hydrometer (measures the density of a liquid) using a pipet or eyedropper.
  
Comparing Crystals
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  In this chemistry activity (page 3 of the PDF), learners will learn about crystals by growing their very own.
  
Using Tools and Melting Ice
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  In this activity, learners will experiment with different materials that can melt and change ice.
  
Test Density with a Supersaturated Solution
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  Learners create three solutions with different levels of salinity. They compare the density of these solutions by coloring them and layering them in a clear plastic cup and in a soda bottle.