Found Volcano Model

The catapult has a long and interesting history. It has been around in many forms, evolving since about 400 BC. This model is based on the medieval styles that were used during the middle ages.

Standing 15 cm tall and 12 cm wide, this siege engine can shoot a plasticine ball over 15 feet!

Adjustable pads on the crossbar allow you to change the trajectory angle. The rope, strung through the middle gives great power to the swing arm!

·  All pieces are pre-cut and drilled so the model is incredibly strong!

·  All you need is glue and scissors.

·  Can be made in about an hour.

·  Great for beginner siege builders!

Great for STEM programs!

Considered by many to be the most powerful and destructive of all the siege engines, the trebuchet took many forms throughout the Medieval world, hurling huge rocks, giant fireballs and even diseased animals at (and into) castles.

This model, based on the Warwolf, is a tabletop working replica of a trebuchet made in the 13th Century.

Standing 26 inches (67 cm) tall by 18 inches (48 cm wide) this model will shoot balls of plasticine (included) over 20 feet! Please be careful of what (or whom) you take aim on, this thing can really let loose.

·  Model is pre-cut and each joint is drilled for super strong connection.

·  Comes with a leather-like sling and some soft modeling clay for safe hurling!

We want our kids to ask questions, solve problems, and take the design process from conception to an end product. This class pack of materials is designed to help enhance those crucial skills!

The kit comes with a teacher information booklet with great lesson plans, ideas, and a 15 page student handbook with information about the history of hydraulics machines, and pages of tips and ideas about how to use the parts.

Teachers need only scissors, glue, and cardboard to get their class inventing, designing and building in a great, affordable activity that will be the highlight of any science unit.

Hydraulic  Mini Scissor Lifts are cool machines that are used on building sites to lift a platform horizontally. They are commonly used to reach high places like ceilings with a steady place to work from.

This model uses the same principles as those in real situations, except you use water instead of hydraulic fluid - nice!

Once made the Scissor Lift provides an excellent example of how we use technology to reach the top Great for kids to learn about hydraulics, levers and simple machines. Simple to build in less than an hour, you need only a pair of scissors to make this fun and functional model.

Best of all: no batteries required!

$17 one set  /$120 for 10 sets

Great for STEM programs!

Widely used by power and telephone companies (and anyone who wants to get a cat out of a tree) this is an excellent model showing levers and hydraulics.

Using a parallel linkage, the platform stays level all the way up and down. And it swivels side to side! Great fun for moving Lego people around, (sorry, not included).

The nice thing about the parallel linkage is that as the platform moves up and down, the people don't fall off (we think that is a nice touch!)

Easy to assemble in less than an hour, this kit uses one hydraulic piston attached to the main arm.

Best of all: no batteries required!

$17 one set /$120 for 10 sets

Great for STEM programs!

Platform lifters are cool simple machines that are used to lift platforms horizontally.

This model uses the same principles as those in real situations, except you use water instead of hydraulic fluid much cleaner!

This kit is similar to the Cherry Picker except the platform swings freely.

Fully extended it stands over 22 cm high. This makes for some interesting fun as you can balance an object as you  raise up the platform.

Easy to assemble in less than an hour, this kit uses one hydraulic piston attached to the main arm. Great for teachers and kids to get going on the study of levers and simple machines, and a great beginning to make their own machines!

Best of all: no batteries required!

$17 one set/$120 for 10 sets

Excavators are big machines that are used to dig holes and move earth, and this model uses the same principles as those used in real situations, except you use water instead of hydraulic fluid. There are many types of excavators and this kit uses a first and third class lever to make the arm and shovel move. We think it provides and excellent example of how we use technology to dig things up. Great for kids to learn about hydraulics, levers and simple machines, and to finish small excavating projects. Simple to build in less than an hour, you need only a pair of scissors to make this fun and functional model. Best of all: no batteries required! GREAT FOR STEM PROGRAMS!

·  Easy instructions, suitable for beginner model makers.

This robotic arm is an easy to make 3 dimensional model that grabs, lifts items horizontally, and can turn very close to 90 degrees! Designed to be used alone (with a nice syringe holder), or in a group - each person using one syringe.

A great way to learn about Robotics, Levers and Simple Machines, Fluid dynamics, Engineering, and Invention, and Design and Technology - or just moving things around the house (small things, mind you - no dogs or cats, please.)

Easy to make in about an hour or two, it stretches 49 cm (16 inches) out, swings 18 cm (7 inches) around, and stands 37 cm (13 inches) high. Best of all: no batteries required!

Great for STEM programs!

$ 24 one set/ $180 for 10 sets

This 32-page book offers 24 ways of teaching geometric solids, engaging diverse learning styles. Children learn to identify, analyze and classify three-dimensional shapes, describe and analyze the results of subdividing and combining shapes, and use geometric models to solve problems in other areas of math.