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In this activity, learners will experiment with different materials that can melt and change ice.

Experiment with liquids of different densities and create liquid layers. For example, oil and water have different densities: oil floats on water because it is less dense than water.

Make a quick and easy filter from household materials. A filter will catch any solids suspended in a liquid and filter them out. By using a filter, learners can discover amazing things.

This activity about density provides instructions for making a miniature "lava lite" with just salt, oil, water, and food coloring.