On sale $37.98 $30.38
SKU: 1823-08 [Advanced, Single], 1823-09 [Advanced, 10 Pack]
You have always wanted an extra hand! What will it do for you? By selecting the Advanced Hydraulic Arm you continue to understand and apply the core concepts of fluid hydraulics and simple machines. The Advanced Arm comes with parts to create a rotating base and broaden your design possibilities. You have much more flexibility in deciding what task your arm will perform. For example, do you need to change the range of motion or fulcrum point? The arm pivots at three points and the gripper opens and closes. This is an Easy Engineering activity, making design, construction and revision simple. With additional innovative parts you can reengineer grippers or prepare for a new function, etc. Please refer to the Advanced Hydraulic Arm Activity document..
On sale $206.98 $165.58
Building the TeacherGeek Basic Hydraulic Arm provides the opportunity to understand and apply basic fluid hydraulic and simple machine concepts. The downloadable guide is detailed, informative and provokes thinking making design, construction and revision simple. The arm pivots at two points and the gripper opens and closes. With additional innovative parts you can reengineer parts, change range of motion, prepare for a new function, etc. Please refer to the Hydraulic Arm Activity document for more specific details.
On sale $52.98 $42.38
SKU: 1823-10 [Single], 1823-11 [10 Pack]
Do you want energy to power lights or even run a hobby motor? Then the Geared Wind Turbine is for you! The gear box assembly increases the alternator rpm and therefore increases the power generated (see Gear Box Build Guide). Reengineering the gear ratios can change the power output. Also, the amount of electricity generated can vary by redesigning blades and alternator coil wrap patterns. Build your wind turbine with alternator components (see Alternator Build Guide), hub assembly, gears, hole plates, dowels, hardware and additional found materials. A stand is necessary. Purchase either the Bench or Wind Turbine Stand. Blade material choice is up to you to procure. Check the Blade and Hub Construction Guide to get started. Additional free Build Guides are available below.
The 12 pack offers significant savings per kit.
On sale $9.98 $7.98
SKU: 1822-92 [Single], 1822-93 [10 Pack]
Yes, now you have the opportunity to build a better mousetrap. That is, you will be building a better mousetrap car using TeacherGeek components. Start by building the sturdy chassis from the included connector strips, dowels, perpendicular adaptors and wheels. Add mousetrap power and experiment with the included gears and other unique build components to allow the racer to go farther, faster or pull a load. If more traction is desired, install the included wheel tires. Apply the science of kinetic and potential energy, simple machines and friction as you design, construct and even reengineer the ultimate mousetrap vehicle.
On sale $13.98 $11.18
SKU: 1823-04 [Advanced, Single], 1823-05 [Advanced, 10 Pack], 1823-06 [10 Pack]
The Ping-Pong Ball Launcher combines the two favorites, building and making things fly. This activity comes with all the components to build an adjustable launcher base and a launcher mechanism. From there choose a design purpose. Do you want to hit a target at a given distance? Do you want to launch the ping pong ball the highest or farthest? Is consistency important? How do the constants or variables affect your results (angle of trajectory, gravity, stored energy, mass, range, environment, etc.)? Now design, build, implement and innovate with your launcher to allow for experimentation with the elements of projectile motion. This advanced activity includes additional parts and components that allow your design and innovation to go way beyond the basic launcher. How about building catapult, ram, sling shot, kicker or whatever else you can imagine to launch the ball and achieve your goals.
On sale $14.98 $11.98
SKU: 1822-94 [10 Pack], 1822-95 [Advanced, Single], 1822-96 [Advanced, 10 Pack]
Kids, Adults... Young, Old... We all have shot rubber bands into the air. Now let's use the stored energy in a stretched rubber band to make a vehicle move. When you build, race and reengineer a Rubber Band Racer you will work with core science concepts like potential and kinetic energy, simple machines, friction, elasticity and ratios. You will acquire and apply a deeper understanding of wheels and axles You will reinforce how the coefficient of friction can help or hinder the performance of your vehicle. This activity truly merges stem concepts. TeacherGeek components allow you to design and redesign as much as you like. As you choose various outcomes such as speed or duration, you can reengineer your vehicle to meet your needs. These very affordable racers appeal to all ages. The versatility of design makes them fun to build play with and race.
Check out the cost savings 10 pack.
On sale $5.98 $4.78
SKU: 1823-14 [Single], 1823-15 [10 Pack]
The TeacherGeek Wind Lift Activity allows you to build a wind powered lift. You will start by creating the stand from a hole plate, dowels, perpendicular blocks and hardware. Then, the lift mechanism, hub and blades are added. Easy to follow pictorial steps are found in a free downloadable document. Encouraging tips are offered for experimentation with blade designs that lead to a variety of outcomes. Check the Wind Lift Activity Guide online for further details (available as a free download).
On sale $21.98 $17.58
SKU: 1823-18 [Single], 1823-19 [10 Pack]
The Wind Pump harnesses the energy created from wind to pump water, The wind driven turbine powers a geared transmission that operates a hydraulic pump. This will move water from one level up to another. You will apply many scientific concepts such as calculating work, fluid mechanics, simple machines and aerodynamics. A stand is necessary. Purchase either the Bench or Wind Turbine Stand or make one of your own. Blade material choice is up to you to procure. Check the Wind Pump Construction Guide and the Blade and Hub Construction Guide to get started. Additional free Build Guides are available below. Note: You can also create a hand operated pump from these TeacherGeek components.