Standing over 2 feet tall, the SmartLab Weird and Wacky Contraption Lab has 60 mix-and-match pieces to build an unlimited amount of contraptions! Kids can dream up crazy courses, then build and test them using this easy-to-construct Velcro-like system! Instructions offer tips and tricks on how to best manipulate the kit's components. It guides kids through 5 sample contraption designs while they learn how to predict the outcome of each.

Includes: 66 contraption pieces and full-colour instructions.

Measures approximately 25" high.

Build 3 working robots using 3 different electronic circuits and 3 different insect-shaped bodies! The radar-controlled "guide" robot detects objects using infra red rays, the "wake-up" robot is sensitive to light and the "come to me" robot is operated by any TV remote control! A separate circuit and body are supplied for each robot: just fix the selected circuit onto the robot base and add the corresponding transparent body - no soldering required! Also includes a detailed colour manual with instructions and explanations of how robots work.

Each robot measures approximately 6" long.

Requires 2 AA batteries (NOT INCLUDED).

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 and giant fireballs at (and into) castles. This model, based on the Warwolf, is a tabletop working replica of a trebuchet made in the 13th Century.

This kit lets you build the replica with accurate historic details such as the pegged joints, a leather pouch used for the load, and a wooden box for weights. It's capable of hurling a ball of soft modeling clay (included) over 20 feet! Add this to your battle scene, use it as a school experiment for math or science, or just have fun making it and seeing what it can do! Adjust the weight, angle, lengths, etc. for a more interesting experiment!

Easy to assemble. All pieces are pre-cut and drilled. Requires scissors and white or wood glue. Complete, clear instructions are included. Once assembled, this wooden Trebuchet measures approximately 18"" long x 7"" wide x 24"" tall.

Awarded three stars (the highest rating for a toy in Canada!) by The Canadian Toy Testing Council in 2007.

Combining some cool physics principles, industrial age design, and the latest technology, the inventors at Pathfinders have made the world's first easy-to-assemble trunnion bascule bridge model. Designed by Joseph Strauss in the early 1900's, these bridges have become icons in many cities and are cool reminders of the innovative architecture of the time.

A great kit for a classroom resource! This model may inspire a new generation of budding engineers who will make structures that have both a rich form and useful function. This model has educational materials - including lniks to neat websites, to hep kids learn more about the bridges they see in the world around them.

This wooden set includes all you need. It is made of natural wood and plywood and contains no coatings (it is paintable). It comes with stickers for the road signs and assembly instructions. Can be disassembled for easy storage.

Once assembled, this bridge measures approximately 70cm x 30cm x 12cm (27.5" long x 11.8" high x 4.7" wide).

This Running Horse automaton moves forward and back while its legs kick out, running like the wind! Automata are whimsical mechanical toys that have lifelike movements when their crank is turned. Easy to make and fun to paint, this model pays homage to a time when toys were made of wood and could be personalized by the builder!

Not only does it look neat, it'll give you an opportunity to explore the principles of mechanics and improve your model making skills! While designed for horse lovers, you can always paint it to look like a zebra or unicorn! All pieces are pre-cut and glue is included. Made of natural wood.

Requires scissors and a ruler (NOT INCLUDED).

Measures approximately 10" long x 9" high, assembled.

Using clear syringes and coloured liquid (no needles included), this building kit clearly demonstrates the simplicity of how hydraulics make a mini excavator work. Excavators are widely used on construction sites to dig holes. There are a wide variety of styles available and this model uses the same principles to move the arms as the real excavators do! Once its build you can use it to lift a pencil! This is a fun and different toy that will stimulate your mind as you have fun with basic hydraulic mechanics. All parts and instructions are included.

Once assembled, this mini excavator model measures approximately 11.8" high.