Seven different solutions are combined in every possible combination and chemical properties are identified by observing their reaction with other solutions. Chemical reactions include gas production, color changes and formation of recipitates. Students use their information to identify 4 unknown solutions. Contains materials to conduct the experiment twice, safety glasses. For 24 students working in groups of 4. Grades 7-11.
Observe the color and state of matter for 14 different substances. Test liquids for the presence of odor and observe the texture of solids. Test the acidity or alkalinity of liquids. Test the solubility of solids in alcohol and water. All materials included except: water, stirring rod, graduated cylinder, balance, hand lens (optional), safety glasses, test tubes or depression plate for solubility test. Designed for 24 students in groups of 4. Grades 8-11.
Refill kit for 09725. Barium Chloride bottle 100ml, Citric Acid 1/4 oz, Dextrose 30cc, Gelatin 30cc, Hydrogen Peroxide 3% bottle 2oz, Ethanol Denatured Alcohol 20, Potassium Iodide 1% solution 100ml, Potassium Thiocyanate 100ml, Sudan IV 2oz, Sulfuric Acid 10% solution 100ml, salad oil 2oz, Benedicts solution 100ml, Iodine .1 normal 4oz, Biuret solution 100ml, Starch Acetic Acid solution 100ml, chemical absorbent pad.
Today's emphasis on the artificial and natural ingredients of the foods that we eat has placed new emphasis on the chemical composition of that food. Examine the chemical, nature of many familiar food products. Experiments in this module: Presence of sugars, starches, fats and proteins, fruit discoloration, chemical composition of milk, presence of iodine in salt, calcium propionate in bread and the qualitative test for vitamin C and sulfur dioxide.
The Project Planetarium is ideal for individual study projects. Causes of 2 day and night, seasonal changes, phases of the moon, and planet locations are easily understood. The small planetarium model and solar system chart, 22"x17", may be set to show actual positions of the earth, the moon and planets at any given time. Each set includes planetarium, chart and study guide.
Features all 10 planetary orbits. The motions of the planets, their relative sizes and distances from one another are illustrated in this attractive model. This model enables the student to "see" and "feel" what the Solar System looks like. The student will be able to visualize the physical relationships between the planets and the sun, and realize a better understanding of the various motions of the planets. When used with Ptolemaic System, all the problems of the real and apparent motions become clear. Stainless steel arms. Instruction book, ?Worlds in Motion," is included.
Features all 10 planetary orbits. The motions of the planets, their relative sizes and distances from one another are illustrated in this attractive model. This model enables the student to "see" and "feel" what the Solar System looks like. The student will be able to visualize the physical relationships between the planets and the sun, and realize a better understanding of the various motions of the planets. When used with Ptolemaic System, all the problems of the real and apparent motions become clear. Stainless steel arms. Instruction book, ?Worlds in Motion," is included.
Sign meets the Manual on Uniform Traffic Control Devices (MUTCD) specifications for shape, color, dimensions, legends, illumination and reflectorization set forth by the Office of Traffic Operations, Federal Highway Administration, U.S. Department of Transportation. Sign includes 3M Scotchlite Reflective Yellow Green Sheeting which is designed to reflect headlights at night and make signs visible to drivers. This provides enhanced visibility and safety. 30" x 30" (Yellow/Green).
Sign meets the Manual on Uniform Traffic Control Devices (MUTCD) specifications for shape, color, dimensions, legends, illumination and reflectorization set forth by the Office of Traffic Operations, Federal Highway Administration, U.S. Department of Transportation. Sign includes 3M Scotchlite Reflective Yellow Green Sheeting which is designed to reflect headlights at night and make signs visible to drivers. This provides enhanced visibility and safety. 30" x 30" (Yellow/Green).
Sign meets the Manual on Uniform Traffic Control Devices (MUTCD) specifications for shape, color, dimensions, legends, illumination and reflectorization set forth by the Office of Traffic Operations, Federal Highway Administration, U.S. Department of Transportation. Sign includes 3M Scotchlite Reflective Yellow Green Sheeting which is designed to reflect headlights at night and make signs visible to drivers. This provides enhanced visibility and safety. 24" x 24" (Yellow/Green).
• STOP/STOP reversible sign
• Heavy-duty 18" dia aluminum sign
• Visible from one hundred yards away
• Bold 6" high letters
• 70" High PVC tube for safe use.
• 18" Steel base
• Sign is printed on both sides.
This heavy-duty 18" diameter aluminum sign is visible from one hundred yards away, has bold 6" high letters and is easily recognized by pedestrians and motorists. It is supported by a PVC tube for safe use. Has an 18" steel base that allows the double face sign to be rotated. Sign is printed on both sides. 70" High. Ships small package.
• STOP/SLOW reversible sign
• Heavy-duty 18" dia aluminum sign
• Visible from one hundred yards away
• Bold 6" high letters
• 70" High PVC tube for safe use.
• 18" Steel base
• Sign is printed on both sides.
This heavy-duty 18" diameter aluminum sign is visible from one hundred yards away, has bold 6" high letters and is easily recognized by pedestrians and motorists. It is supported by a PVC tube for safe use. Has an 18" steel base that allows the double face sign to be rotated. Sign is printed on both sides. 70" High. Ships small package.
• All Plastic Sign Frame
• 24in x 24in legend area
• Has "Student Parking" printed on both sides
• Regressed sign area helps to protect sign faces
• Features “click lock” hinges for a positive interlock in the open position
• Can be internally ballasted with sand
• Stacking lugs facilitate handling by keeping stacked units from sliding and damaging sign faces
• Outside Dimensions: 36”H X 25”W x 3”D
• Weight: 17 lbs.
Molded all plastic hollow sign frame that can be internally weighted down with sand. Only 3 or 4 pounds is recommended per leg. Most of the weight is at the bottom where it acts like an anchor. They are extremely durable. Stacking lugs facilitate handling by keeping stacked units from sliding and damaging sign faces. Features “click lock” hinges for a positive interlock in the open position. Legend area measure 24in x 24in. “Student Parking” printed on both sides. Outside Dimensions: 36”H X 25”W x 3”D. Weight: 17 lbs. Ships UPS or FedEx Ground.
• All Plastic Sign Frame
• 24in x 24in legend area
• Has "Lot Full" printed on both sides
• Regressed sign area helps to protect sign faces
• Features “click lock” hinges for a positive interlock in the open position
• Can be internally ballasted with sand
• Stacking lugs facilitate handling by keeping stacked units from sliding and damaging sign faces
• Outside Dimensions: 36”H X 25”W x 3”D
• Weight: 17 lbs.
Molded all plastic hollow sign frame that can be internally weighted down with sand. Only 3 or 4 pounds is recommended per leg. Most of the weight is at the bottom where it acts like an anchor. They are extremely durable. Stacking lugs facilitate handling by keeping stacked units from sliding and damaging sign faces. Features “click lock” hinges for a positive interlock in the open position. Legend area measure 24in x 24in. “Lot Full” printed on both sides. Outside Dimensions: 36”H X 25”W x 3”D. Weight: 17 lbs. Ships UPS or FedEx Ground.
• All Plastic Sign Frame
• 24in x 24in legend area
• Has "Enter Here" printed on both sides
• Regressed sign area helps to protect sign faces
• Features “click lock” hinges for a positive interlock in the open position
• Can be internally ballasted with sand
• Stacking lugs facilitate handling by keeping stacked units from sliding and damaging sign faces
• Outside Dimensions: 36”H X 25”W x 3”D
• Weight: 17 lbs.
Molded all plastic hollow sign frame that can be internally weighted down with sand. Only 3 or 4 pounds is recommended per leg. Most of the weight is at the bottom where it acts like an anchor. They are extremely durable. Stacking lugs facilitate handling by keeping stacked units from sliding and damaging sign faces. Features “click lock” hinges for a positive interlock in the open position. Legend area measure 24in x 24in. “Enter Here” printed on both sides. Outside Dimensions: 36”H X 25”W x 3”D. Weight: 17 lbs. Ships UPS or FedEx Ground.
• All Plastic Sign Frame
• 24in x 24in legend area
• Has "School Crossing 15 M.P.H." printed on both sides
• Regressed sign area helps to protect sign faces
• Features “click lock” hinges for a positive interlock in the open position
• Can be internally ballasted with sand
• Stacking lugs facilitate handling by keeping stacked units from sliding and damaging sign faces
• Outside Dimensions: 36”H X 25”W x 3”D
• Weight: 17 lbs.
These collapsible signs are molded hollow to be internally weighted down with sand. Most of the weight is at the bottom where it acts like an anchor. Ships UPS or FedEx ground. Extremely durable and printed on both sides. Overall size = 25" Wide x 36" High. Legend area measure 24" x 24". Ships UPS or FedEx Ground.
• All Plastic Sign Frame
• 12in x 24in legend area
• Has "Do Not Enter" printed on both sides
• Regressed sign area helps to protect sign faces
• Features “click lock” hinges for a positive interlock in the open position
• Can be internally ballasted with sand
• Stacking lugs facilitate handling by keeping stacked units from sliding and damaging sign faces
• Outside Dimensions: 36”H X 13”W x 3”D
• Weight: 10 lbs.
Molded all plastic hollow sign frame that can be internally weighted down with sand. Only 3 or 4 pounds is recommended per leg. Most of the weight is at the bottom where it acts like an anchor. They are extremely durable. Stacking lugs facilitate handling by keeping stacked units from sliding and damaging sign faces. Features “click lock” hinges for a positive interlock in the open position. Legend area measure 12in x 24in. “Do Not Enter” printed on both sides. Outside Dimensions: 36”H X 13”W x 3”D. Weight: 10 lbs. Ships UPS or FedEx Ground.
• Durable herringbone weave design
• Rubberized fabric-tire links
• Ideal for schools, industrial or factory entrances
• Easily rolled for cleaning
• Overall thickness: 5/8"
• Available in black only
• Available in 6 Sizes
This 17in x 25in interlocking linked mat utilizes fabric impregnated rubber secured with 12 gauge galvanized spring steel rods. Dirt falls between herringbone pattern for easy cleaning-simply roll up mat and sweep or hose the floor underneath. Overall thickness, 5/8" Available in black only. Available in six size. Ships UPS or FedEx Ground.
• Black Post with Black Base
• 12' slow retracting belt
• Constructed of weatherproof High Density Plastic (HDPE)
• The ideal choice for outdoor safety barricades. T
• Push-Snap no tools assembly makes transport and setup easy
• Fillable hollow base
• 2 belt messages available
Our Tempest Crowd Control Posts with 12' slow retracting belts (black only), are constructed of weatherproof High Density Plastic (HDPE) making it the ideal choice for outdoor safety barricades. Tempest's unique design and highly visible colors make it a smart choice for an airport taxi queue or sport stadium ticket line. The patent pending "push-snap" no tools assembly makes transport and setup easy. The hollow base is filled with liquid or sand bringing the prefilled weight from less than 4 lbs. to 17.5 lbs. Stanchions have a black base with black upright. Belt available with CAUTION - PLEASE DO NOT ENTER, or PLEASE DO NOT ENTER - TEMPORARILY CLOSED message.
• Heavy duty 1" galvanized steel construction
• Features easy-swivel front casters
• 10" All-terrain pneumatic rear wheels
• Holds most coolers up to 10 gallons in size
• Comes with basket to hold cups, etc.
• Use indoors or out
• Measures 53" H x 27" W x 26' D
• Cooler not included
• Lifetime warranty!
• Made in the USA!
Lifetime warranty! Made in the USA!. Not a cheap import!. Heavy duty 1" galvanized steel construction. Features easy-swivel front casters. 10" All-terrain pneumatic rear wheels. Cart enables you to transport and stage. Holds most coolers up to 10 gallons in size and 16" outside diameter. Comes with basket to hold cups, etc. Use indoors or out. Measures 53" H x 27" W x 26' D. Cooler not included U.S. Pat. No. D581,124
• Heavy duty 1" galvanized steel construction.
• Features easy-swivel front casters.
• 8" rubber rear wheels
• Holds most coolers up to 10 gallons in size
• Comes with basket to hold cups, etc.
• Use indoors or out.
• Measures 53" H x 27" W x 26' D.
• Cooler not included
• Lifetime warranty!
• Made in the USA!
Lifetime warranty! Made in the USA!. Not a cheap import!. Heavy duty 1" galvanized steel construction. Features easy-swivel front casters. 8" Rubber rear wheels. Cart enables you to transport and stage. Holds most coolers up to 10 gallons in size and 16" outside diameter. Comes with basket to hold cups, etc. Use indoors or out. Measures 53" H x 27" W x 26' D. Cooler not included U.S. Pat. No. D581,124
• Heavy duty 1" galvanized steel construction
• 10" All-terrain pneumatic rear wheels
• Holds most coolers up to 10 gallons in size
• Comes with basket to hold cups, etc.
• Use indoors or out
• Measures 53" H x 27" W x 26' D
• Cooler not included
• Lifetime warranty!
• Made in the USA!
Highly popular water tote. 10" pneumatic tires make it easy to maneuver on any terrain. Holds most coolers up to 10 gallons in size and 16" outside diameter. Comes with wire cup basket. Lifetime warranty applies to cart only
• Heavy duty 1" galvanized steel construction
• 8" rubber wheels
• Holds most coolers up to 10 gallons in size
• Comes with basket to hold cups, etc.
• For indoor use
• Measures 53" H x 27" W x 26' D
• Cooler not included
• Lifetime warranty!
• Made in the USA!
Cart enables you to transport and stage. Holds most coolers up to 10 gallons in size and 16" outside diameter. Comes with basket to hold cups, etc. Use indoors or out. Measures 53" H x 27" W x 26" D. Order cooler separately. Lifetime warranty applies to cart only
An introduction to the relationship between solute and solvent which is vital to life for both animal, plant... this kit illustrates how cellular absorption occurs in animal tissue. Kit contains: strips visking membrane, glucose, iodine solution, starch, benedicts A, benedicts B, instructions and background material. Sufficient materials for 16 pairs of students. Grades 9-12.