Includes specimens in the following areas: rock-forming minerals; ore-forming minerals; industrial minerals; and igneous, sedimentary, and metamorphic rocks. 40 specimens, 2" x 1 1/2". Comes in a compartmented container.
Includes specimens in the following areas: rock-forming minerals; ore-forming minerals; industrial minerals; and igneous, sedimentary, and metamorphic rocks. 40 specimens, 2" x 1 1/2". Comes in a compartmented container.
The cycle of precipitation and evaporation is dramatically demonstrated for elementary and intermediate school students. Complete kit includes base tray holding an accurate and simulated varied landscape plus a lid with cloud simulator. All you do is add ice cubes and a heat source to create an exciting earth science demonstration. Also demonstrate distillation of water to gas. A truly dynamic teaching tool.
The cycle of precipitation and evaporation is dramatically demonstrated for elementary and intermediate school students. Complete kit includes base tray holding an accurate and simulated varied landscape plus a lid with cloud simulator. All you do is add ice cubes and a heat source to create an exciting earth science demonstration. Also demonstrate distillation of water to gas. A truly dynamic teaching tool.
For demonstrating longitudinal and transverse wave motion. Consists of a number of eccentric aluminum discs supporting a series of metal rods, joined to a handle. On revolving the handle, simulation of waves can be obtained on the rods running in a metal guide. Mounted on a nicely polished wooden case.
For demonstrating longitudinal and transverse wave motion. Consists of a number of eccentric aluminum discs supporting a series of metal rods, joined to a handle. On revolving the handle, simulation of waves can be obtained on the rods running in a metal guide. Mounted on a nicely polished wooden case.
2 activities in 1. New design for use with dry-erase markers, wall-size chart (44" x 50") for integrated study and plotting of weather data. Map on one side locates U.S. reporting cities, includes forecast space and weather symbols. Chart on reverse side combines world map and 2 climagraphs for plotting comparative temperatures and precipitation. Study guide included.
2 activities in 1. New design for use with dry-erase markers, wall-size chart (44" x 50") for integrated study and plotting of weather data. Map on one side locates U.S. reporting cities, includes forecast space and weather symbols. Chart on reverse side combines world map and 2 climagraphs for plotting comparative temperatures and precipitation. Study guide included.
In combination with a detailed Teacher's Guide, this 16" x 12" x 3" 3-D model will help students understand weather fronts and other meteorological concepts. Students can conduct detailed studies of airmass structures, cloud types, precipitation, temperatures, pressure, and warm and cold fronts. Building upon this base of information, direction and speed of fronts can be measured, giving students the option of forecasting weather conditions for specific times and locations. Grades 4-12.
In combination with a detailed Teacher's Guide, this 16" x 12" x 3" 3-D model will help students understand weather fronts and other meteorological concepts. Students can conduct detailed studies of airmass structures, cloud types, precipitation, temperatures, pressure, and warm and cold fronts. Building upon this base of information, direction and speed of fronts can be measured, giving students the option of forecasting weather conditions for specific times and locations. Grades 4-12.
Hanging metric weights used to extend scale capacity of Ohaus 750-S0 and 750-SW metric triple-beam balances (not included). Cast iron construction has durability and long life. The set of three attachment weights includes two 1,000g weights and one 500g weight.
Calibration weights are used to measure the weight or mass of an object using a balance or scale, or to calibrate other weights or instruments. Calibration weights can be certified or uncertified. Certified weights meet strict guidelines for accuracy and can usually be recertified. Certified weights are used in labs where a high degree of accuracy and repeatability is required. Uncertified weights are used where a lower degree of accuracy is required, including student laboratories, rough weighting operations, and measuring force. Hooked and slotted weights are often used to measure pressure, torque, and tensile strength, and to demonstrate basic laws of physics. Calibration weights differ from lab weights, which are general purpose weights used to hold an object in place, similar to a paperweight.
Hanging metric weights used to extend scale capacity of Ohaus 750-S0 and 750-SW metric triple-beam balances (not included). Cast iron construction has durability and long life. The set of three attachment weights includes two 1,000g weights and one 500g weight. Calibration weights are used to measure the weight or mass of an object using a balance or scale, or to calibrate other weights or instruments. Calibration weights can be certified or uncertified. Certified weights meet strict guidelines for accuracy and can usually be recertified. Certified weights are used in labs where a high degree of accuracy and repeatability is required. Uncertified weights are used where a lower degree of accuracy is required, including student laboratories, rough weighting operations, and measuring force. Hooked and slotted weights are often used to measure pressure, torque, and tensile strength, and to demonstrate basic laws of physics. Calibration weights differ from lab weights, which are general purpose weights used to hold an object in place, similar to a paperweight.
• Lightweight, multi-season.
• Rainguard zipper closure with interior storm flap.
• Comfort collar, fleece-lined.
• Three fused fabric layers.
• Breathable, waterproof and wind resistant.
• Comfortable polyester/spandex outer shell fused with fleece liner.
• Two exterior slash pockets with rain guard zipper closure.
• Channeled hem with cinch cord and cord lock for adjustable fit.
• Deluxe adjustable cuffs.
• Contoured waist.
Women's Class 2 polyester bonded with fleece. Contoured waste for better fit. 3 fused fabric layers: soft outer shell, weather resistant middle and warm brushed fleece interior. Breathable, water and wind resistant. Comfortable polyester/spandex. Draw string hem with cord stopper. Black bottom hides dirt and grime. 2 zippered slash pockets. Adjustable sleeve cuffs. Zipper closure with tunnel collar. Conforms to ANSI 107 standard.
