Click here to download the catalog as a PDF file. To view this site you need Adobe Flash Player and your browser must allow javaScripts. Go here to get the latest Flash Player. Chemistry Periodic Chart When can you expect improvements on the familiar Periodic Table of Elements? Why, periodically, of course! We have the latest, available either as a three-ring binder foldout, poster size or wall size! The poster size and wall size charts feature colorful photos of the elements in the most common state (as seen right). The binder size includes the photos plus important physical data on the appearance, physical state, character, reactivity, and common uses of each element. C5-2000 Binder Size 10 or more 50 or more Poster Size Wall Size 25" x 38" 67" x 90" $2.50 $2 each $1.85 each $12.50 $179 Show students how elements exist as pure substances. See solids, liquids and gases. Radiation symbols indicate elements that only exist in quantities too small (or times too short) to photograph. C5-2005 C5-2010 Crystal Growing Kit Let your science course sparkle by turning ordinary rocks into glimmering crystal treasures! Observe how crystals grow from solution and how they acquire their symmetrical shapes and sparkling surfaces. Growing crystals is easy and certain to create excitement in your classroom. Just dissolve the crystal growing chemicals in hot water, place a base rock into the solution, and within hours crystals will start to form right before your eyes. Each of our Classroom Kits contains 30 sets of pre-mixed crystal growing chemical (5 each of 6 different formulas), growth containers, spatulas, identification cards and instructions, including a 48-page teacher’s manual. Grows crystal clusters of up to 2" in height (including base rock). C1-3150 Crystal Growing Kit $38 Molecular Modeling Kit in Two Sizes for Basic or Advanced Study! Qty – Student 6 0 14 0 1 1 2 6 1 0 1 0 1 0 1 1 6 2 0 2 1 0 1 1 0 1 1 1 1 3 Qty – Teacher 14 6 12 2 0 4 6 13 4 5 8 4 1 4 1 2 8 0 4 3 0 2 0 4 1 0 0 0 0 0 Element Carbon (C) Carbon (C) Hydrogen (H) Hydrogen (H) Boron (B) Nitrogen (N) Nitrogen (N) Oxygen (O) Oxygen (O) Oxygen (O) Sulphur (S) Sulphur (S) Sulphur (S) Phosphorus (P) Phosphorus (P) Phosphorus (P) Halogen (Cl, F) Metal (Na) Metal Metal (Ca,Mg) Metal (Be) Metal Metal (Al) Metal (Si, Cu) Metal Metal ** sp3 ** dsp3 ** d2sp3 Lone pair electron cloud Color Black Dk Blue White White Beige Blue Blue Red Red Red Yellow Yellow Yellow Purple Purple Purple Green Grey Grey Grey Grey Grey Grey Grey Grey Grey Beige Beige Beige Holes 4 5 1 2 3 3 4 2 4 1 2 4 6 4 5 3 1 1 1 2 2 3 3 4 6 6 4 5 6 Angles & Type 109 tetra 90 120 trig-bipyr 180 linear 120 trigonal planar 107 pyramidal 109 tetra 105 angular 109 tetra 105 angular 109 tetra 90 octahedral 109 tetra 90 120 trig-bipyr 107 pyramidal Dia. mm 23 23 17 17 23 23 23 23 23 17 23 23 23 23 23 23 17 20 17 23 23 23 23 23 23 23 23 23 23 Molecular Modeling Kit Molymod Molecular Models are easy to handle and snap together. Build both inorganic and organic models using single, double, and triple bonds. Atoms are of the correct relative sizes, with a scale of 2.5 cm to 1 Å. Each kit comes in a convenient plastic box. Instructions included for building many different structures. 105 angular 180 linear 107 pyramidal 120 trigonal planar 109 tetra 90 octahedral 90 octahedral 109 tetra 90 120 trig-bipyr 90 octahedral Flat pear-shaped Qty – Student 20 12 5 Qty – Teacher 38 36 12 Links Medium Long flex. Medium Color Grey Grey Purple Total Length 31 mm 46 mm 31 mm C1-3160 Student Set 6 or more C1-3165 Teacher Set $39 $37 $75 47 To order visit arborsci.com