Sand, fine, 1 lb.

One-pound bag of course sand.

One-pound bag of fine gravel.

Aluminum potassium sulfate is commonly called alum. Use this metal sulfate to grow crystals at home or in the classroom! (Dodecahydrate form)

These aluminum weighing boats or weighing dishes have multiple lab uses.

This filter paper has an 11 cm diameter, is an excellent quality, and works well as chromatography paper. Use this 10-pack of filter paper for a variety of engaging science experiments! Larger quantities are also available.

These 1000 ml (1 liter) glass beakers are a great value for your chemistry lab! Affordable and made of high-quality borosilicate glass.

Aluminum potassium sulfate is commonly called alum. Use this metal sulfate to learn how to grow large gem-like crystals using a seed crystal! (Dodecahydrate form)

Use these fine mesh iron filings to show magnetic fields of magnets! Look below for additional experiment ideas, the iron filings formula, formula weight, and more.

Contains a large assortment of rubber bands of varying sizes to meet all your experimental needs.

This economical 2" digital stopwatch features time, date, alarm, start/stop, and lap/reset functions.