Science Bob Store: Popular Products

Floating Rock and Sinking Wood!

Fri, 14 Aug 2009 20:26:15 +0000

A nice way to show how science can surprise us. Also a great demonstration of density. This kit contains one block of Lignum Vitae wood which has a density of about 1.3 g/cc. That means it is wood that sinks! Also included is a sample o..

Price: $5.95

Bulk Pumice - The Rock That Floats!

Wed, 02 Sep 2009 17:41:46 +0000

Give your students a rock that floats! These are samples of real volcanic (igne..

Price: $4.95

Obsidian Arrowheads

Mon, 10 Aug 2009 07:35:31 +0000

Students are always fascinated when something familiar like a rock is formed into something useful like an arrowhead. These recently made large arrowheads were hand-crafted from volcanic obsidian. Each is unique. A great demonstration tool when teaching about Native Americans, igneous rocks, or..

Price: $1.50

Colored Flame Candles

Fri, 28 Aug 2009 19:16:20 +0000

This will add an extra "Wow" factor to any birthday cake. These are no..

Price: $2.75

3-D Mirascope Illusion

Sat, 09 Jan 2010 12:47:00 +0000

This is an amazing optical illusion device that is har..

Price: $6.95

Classroom Slime Kit

Sat, 11 Jul 2009 15:54:04 +0000

Price: $36.95

Growing Spheres (Clear) - 50 Grams

Fri, 18 Sep 2009 12:52:12 +0000

These things are just plain cool. They start off as tiny (2mm) beads, but when you place them in water overnight, they grow into clear gel-like marbles that are each 20mm wide! They not only look cool, just wait until you feel them. If you drop them back into water, they suddenly seem to disapp..

Price: $7.50

Airzooka Air Cannon

Sat, 11 Jul 2009 21:34:39 +0000

Whether your exploring air, vortexes, sound waves, or you just want to have fun blasting a puff of air over 20 feet, you'll have have plenty of good times with an Airzooka Air Blaster. Here's just a few ideas to get you started.

"Hit" unsuspecting friends with a blast of air that..
Price: $17.95

Glow-Bright Concentrate

Sat, 11 Jul 2009 21:36:18 +0000

Just add a teaspoon (5 ml) of our Glow-Bright Concentrate to a liter of any water soluble liquid and it will glow a bright yellow/green under ultraviolet light. Add to our slime mix for glowing slime, or use in the water for our Growing Spheres for a glowing marble effect. Perfect for creating ..

Price: $2.95

6 inch Battery Powered Blacklight

Sat, 11 Jul 2009 21:39:57 +0000

This is the perfect blacklight for our ultraviolet items. It is especially useful in the classroom where mobility without a cord is helpful. Works great with our Glow-Bright Concentrate for glow slime, or with Glo-Germ lotion. The bulb is a 6 inch, 4 watt UV (blacklight) designed to give the ma..

Price: $9.95