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In this activity, learners explore dinosaur fossils by making cast models of a T. rex. First, learners read about and research how dinosaur fossils form.

Make two firefly lanterns, then program them to blink to one another and change colors.

In this activity, learners design and build a toy top out of simple, everyday materials and have the option to use the toy as an artistic tool.

Learners explore capillary action in plants (such as plants ability to move water from roots to leaves) in an investigation called Paper Blooms.

This activity requires a Pico Cricket (tiny computer).

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.

In this activity, learners create and reveal secret messages written with invisible ink! The invisible ink is actually a baking soda solution, and the magical revealing liquid is fruit juice.

In this simple and fun activity, learners discover the relationship between vibration and sound by making a squeaky toy instrument out of simple household materials.

In this activity, learners take an indoor nature walk and discover various objects that have been brought in from the outdoor environment.

In this Bob the Builder(TM)-themed activity, learners explore the 3Rs (Reduce, Reuse, Recycle) by rotating through several activity stations.

In this activity, learners explore light, color and rainbows by making their own rainbow glasses.

In this activity, learners make a model of a beehive using simple materials.

In this activity, learners create a three-dimensional sculpture while examining the characteristics of fish.

In this activity, learners solidify their conceptualization of cells by building a model of a cell in a ziplock bag.

In this activity, learners explore the history of making objects from glass and artistry of Dale Chihuly.

In this activity, learners will repurpose an old t-shirt to create their own yarn or string.

In this activity (on pages 15-18 of PDF), learners make a life-size two-dimensional paper model of their own skeletons.

In this activity learners will investigate magnetic and non-magnetic items in a sensory bottle.

Break open that used musical toy and squish some Play-Doh over the circuit boards, and you will hear some weird and distorted sounds the manufacturer never intended!

In this activity related to microbes, learners create scale models of microorganisms and compare relative sizes of common bacteria, viruses, fungi and protozoa using metric measures: meters, centimete