Students use their own model of a salt crystal and water molecule to show how water dissolves salt. Then, they relate their observations to the structure of salt, water, and alcohol on the molecular level.

One could say that snowflakes are simply frozen water - but if you compare a snowflake to an ice cube, you'll notice a big difference. Why are all snowflakes six-sided? Why are none of them exactly the same? And how do we ski on them?...

There are different ways to separate mixtures, for example by filtration, crystallization, distillation, or chromatography. The method chosen depends upon the type of mixture.

A colorful diagram of the rock cycle showing the stages that rocks go through as they are transformed by different processes such as weathering, lithification, and crystallization.

Experiment shows students how to use the lowered freezing point of water to chill another mixture (ice cream) to the solid state. Teacher's notes provide background information.

Observe how ice and salt crystals interact by using salt to help adhere a string to the top of an ice cube in a glass of water, then lift the cube out of the water.

Come and learn with this incredible seashore science resource. The content includes fun facts, experiments, reproducible activities, resources and more.