"The Mystery of Lyle and Louise"

Investigate Nerve Tissue.

Pale pink felsite, with small sanidine phenocrysts.

Over 750 Total Curriculum Questions

Light gray, fine small clasts.

Dense and massive.

Hematite-cemented quartz; orthoquartzite.

Pure, large, transparent-to-translucent cleavages, Mohs’ hardness of 4.

Chlorite-bearing.

Similar to our Beaker Brush, this tool features two rows of bristles and a double-tufted fiber end. Brush area is 2.5cm dia. x 10cm long; overall length: 41cm.

Keep your grip and protect your hand.

Reveal the Nature of Color and Light

Make sure your water is balanced.

Explore our planet like never before!

These 25 person bulk first aid kits meet OSHA and ANSI standards, and are designed for use in small offices, vehicles, and work sites.

Physical and biological filtration.

Improve student test scores and involve parents in the process. Fun, exciting, interactive, and inclusive, these sets of content-based games help students master curriculum outlined in the current NSES Standards for grades 1-8. Written by teachers using research-based principles, each game has been tested and proven effective in classrooms like yours. Each Class Pack set of games provides comprehensive coverage of topics required for science testing at that grade level. Engage students in learning with over 750 review cards, each set focused on a specific topic, and an additional 12 double-sided game boards for study and review.