Search Results

Learners build a filter from old soda bottles and dirt. They create polluted water, and pour it through their filter to clean it.

Create 3D glasses and use them to explore color, light and optics. Fool your brain into 'seeing' three dimensions on a flat surface!

"Exploring the Universe: Filtered Light" demonstrates how scientists can use telescopes and other tools to capture and filter different energies of light to study the universe.

In this activity, learners explore how engineering has developed various means to remove impurities from water.

How many colors make black? Gather as many water soluble black markers as you can find.

Learners analyze mixtures of dyes using filter paper chromatography. They place spots of the different dyes at the bottom of a piece of filter paper, and hang the paper to touch the surface of 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.

In this four-part activity, learners explore light and sound through a variety of hands-on investigations.

In this activity, learners interact with whale artifacts such as replicas of skulls, bones, teeth, and baleen (hair-like plates that form a feeding filter).

In this activity, learners use gelatin as a lens to investigate the properties of laser light.

Water treatment on a large scale enables the supply of clean drinking water to communities.