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Rocks are made of minerals, and minerals often have crystal shapes. In this fun activity about geometry in nature, learners create their own crystal shapes out of paper.

In this activity, learners explore the properties of paper by constructing and modifying paper airplanes.

In this activity, learners manipulate paper to build original 3-dimensional sculptures. Appropriate for any age, learners can use fingers to tear, crumple, or fold, and if available, scissors to cut.

In this activity on page 11 of the PDF, learners follow simple steps to recycle old newspaper into new paper.

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.

The Chinese invented paper made from plants and cloth about 2,000 years ago. Learners follow a similar process to make paper from recycled paper.

In this activity, learners keep track of how much paper the group uses in a week. Build awareness of paper waste, while strengthening measurement and estimation skills.

This activity provides instructions for making an aircraft that can really fly using a straw and paper hoops!

In this activity (p.24 of PDF), learners make paper with fungi. Learners discover that paper is basically a flat mat of fibers.

In this activity, learners will experiment with textures, shapes, and materials and create their own unique masterpieces.

Learners make their own paper. They start by shredding old newspaper, clean toilet paper, and clean paper towels.

Learners will do an experiment to determine which type of paper is strongest while focusing on variables and collecting data.

In this crafty chemistry activity (on page 2 of the PDF), learners make their own paper from used paper they may have otherwise thrown away.

Do you have a hard time matching paint swatches with your furniture? When you consider human perception, color is context dependent.

This science activity demonstrates the dominant eye phenomena. What does your brain do when it sees two images that conflict?

In this activity, learners use chemistry to produce weathered "antiqued" paper with burned edges. Learners first soak white paper in coffee and then apply a charring solution of ammonium chloride.

In this simple activity, learners discover how a mere piece of paper can be used to hold up the weight of a heavy book.

Learners shred used paper, add water, and blend it into pulp. They then strain and roll the pulp out to make new paper.

Which one of your eyes are dominant? Do they act independently or are they equally "in control?" This activity explores how your eyes work (or don't work) together.

Create an illusion where it appears that your hand has a hole in it. You'll see the results from when one eye gets conflicting information.