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Save up to 50% OFF cool science kits, toys and games.
Save up to 50% OFF cool science kits, toys and games.
Home \ Science Kits  \ Building Kits

Building Kits

Photo of the: Magformers Inspire Set - 30pc

Magformers Inspire Set - 30pc

High-quality durable magnetic design kit including 30 excitingly colored pastel pieces and a full-color idea booklet! Makes an excellent gift for boys and girls alike!

Item#: 16042 Age: 3+

Photo of the: 3D Solar System Mobile 4M Kit

3D Solar System Mobile 4M Kit

Build and paint your very own designed solar system mobile which revolves and glows in the dark!

Item#: 10410 Age: 5+
4 star rating (4 customer reviews)

Photo of the: Solar & Battery Fan STEM Kit

Solar & Battery Fan STEM Kit

This kit is an economical introduction to solar cells / photovoltaics (PV), DC motors and how fans work. Included are: solar cell, high-efficiency DC motor, two fan propellers, AA battery holder and on/of switch.

Item#: 16785 Age: 5+
5 star rating (1 customer reviews)

Photo of the: MaBoRun - Mini Tornado

MaBoRun - Mini Tornado

The Amazing Tornado Mini MaBoRun features a corkscrew elevator, much like the kind you might find in a Wowie Zowie gumball machine, which conveys marbles to the top of the ramp to begin their descent through a short but exciting track with flips, flops, twists, and jumps!

Item#: 16072 Age: 6+

Photo of the: MaBoRun - Mini Spinning Discs

MaBoRun - Mini Spinning Discs

The Amazing Spinning Discs Mini MaBoRun is miniature Ferris Wheel that operates by the same principle as a water mill, conveying marbles to the top of the ramp to begin their descent through a short but exciting track with spins, slips, and falls!

Item#: 16073 Age: 6+

Photo of the: Money Safe 4M Kit

Money Safe 4M Kit

Explore the wonders of spy security by building your own money safe!

Item#: 14898 Age: 8+
5 star rating (1 customer reviews)

Photo of the: Captain ROAM-E-O

Captain ROAM-E-O

Build a cute mars rover companion featuring 6-wheel mechanical suspension and 4-wheel drive that runs on solar power!

Item#: 16461 Age: 8+

Photo of the: Brush Robot 4M STEM Kit

Brush Robot 4M STEM Kit

Get swept away by this fantastic robot kit that uses vibrations to move!

Item#: 13397 Age: 8+
5 star rating (1 customer reviews)

Photo of the: Physics Solar Workshop Kit v2

Physics Solar Workshop Kit v2

Learn how solar cells transform light into electrical energy with this great kit!

Item#: 11367 Age: 8+
5 star rating (1 customer reviews)

Photo of the: Physics Workshop Kit

Physics Workshop Kit

This science kit is an essential introduction to physics knowledge!

Item#: 10931 Age: 8+
4 star rating (1 customer reviews)

Photo of the: Smart Robot 4M Kit

Smart Robot 4M Kit

Build your very own smart robot!

Item#: 12831 Age: 8+
5 star rating (3 customer reviews)

Photo of the: Tin Can Robot 4M Kit

Tin Can Robot 4M Kit

You don’t think recycling is cool? Get a look at this, we’re sure you’ll change your mind!

Item#: 12259 Age: 8+
5 star rating (3 customer reviews)

Photo of the: Wind Power Kit v2.0

Wind Power Kit v2.0

Explore the wonders of wind power with this amazing kit!

Item#: 13916 Age: 8+
5 star rating (1 customer reviews)

Photo of the: Solar Power Science Kit

Solar Power Science Kit

Discover how solar cells make electricity with this awesome kit!

Item#: 13921 Age: 8+
5 star rating (2 customer reviews)

Photo of the: Mechanics Lab - Cranes - Motorized Construction Models Kit

Mechanics Lab - Cranes - Motorized Construction Models Kit

An incredible scientific kit for discovering the secrets of engineering and mechanics!

Item#: 16843 Age: 8+

Photo of the: Gravitrax - Scoop - Add On

Gravitrax - Scoop - Add On

The scoop addition to the Gravitrax marble run system will allow you to fling your marbles down the track - includes 6 additional track pieces as well!

Item#: 16892 Age: 8+

Photo of the: Gravitrax - Expansion Lifter Set

Gravitrax - Expansion Lifter Set

Raise the marble up to 3 levels higher using the Lifter accessory: a button-operated elevator.

Item#: 16894 Age: 8+

Photo of the: Magnificent Walking Machine Kit

Magnificent Walking Machine Kit

Build a magnificent Victorian styled automaton out of nothing but cardboard!

Item#: 16895 Age: 8+

Photo of the: Magnificent Flying Machine Kit

Magnificent Flying Machine Kit

Build a magnificent Victorian styled automaton out of nothing but cardboard!

Item#: 16896 Age: 8+

Photo of the: Magnificent Marble Machine Kit

Magnificent Marble Machine Kit

This completely glueless Magnificent Marble Machine is a Victorian styled automaton – a moving machine – and a marble run, all in one!

Item#: 16897 Age: 8+

Photo of the: Gravitrax Starter Set - STEM Marble Run with VR

Gravitrax Starter Set - STEM Marble Run with VR

This sophisticated marble run features futuristic hexagon platforms, special pieces like a magnetic cannon, and even VR compatibility!

Item#: 16678 Age: 8+

Photo of the: Gravitrax - Gravity Hammer - Add On

Gravitrax - Gravity Hammer - Add On

The gravity hammer addition to the Gravitrax marble run system will allow you to add some extra momentum to your run - includes 6 additional track pieces as well!

Item#: 16681 Age: 8+

Photo of the: Gravitrax - Magnetic Cannon - Add On

Gravitrax - Magnetic Cannon - Add On

The magnetic cannon addition to the Gravitrax marble run system will allow you to add some extra momentum to your run - includes 3 additional marbles as well!

Item#: 16682 Age: 8+

Photo of the: Gravitrax - Looping - Add On

Gravitrax - Looping - Add On

This exciting vertical loop tile addition to the Gravitrax system will send your marble upside down! includes 6 additional track pieces as well!

Item#: 16683 Age: 8+

Photo of the: Meccano Super Construction Set - 638 Pieces
FREE SHIPPING

Meccano Super Construction Set - 638 Pieces

This SUPER Erector Construction set is one of the best you'll find anywhere!

Item#: 13333 Age: 10+
5 star rating (8 customer reviews)

Photo of the: Power House Kit v2.0
FREE SHIPPING

Power House Kit v2.0

Build a model green house and 9 other green energy-related devices with this great kit!

Item#: 13099 Age: 10+
5 star rating (1 customer reviews)

Photo of the: Physics Pro Kit
FREE SHIPPING

Physics Pro Kit

This advanced physics kit is perfect for older children already versed in physics knowledge!

Item#: 11934 Age: 10+
5 star rating (1 customer reviews)

Photo of the: MuscleWires Monster Moving Hand Kit

MuscleWires Monster Moving Hand Kit

Build a hand that realistically moves its fingers using shape memory allow technology!

Item#: 14905 Age: 12+

Photo of the: Electromagnet Science Kit

Electromagnet Science Kit

Use this kit to introduce electromagnetic principles in the classroom setting!

Item#: 14852 Age: 13+

Photo of the: Fan DIY Micro Car Kit

Fan DIY Micro Car Kit

A simple and highly affordable miniature motorized fan car kit that includes everything you need (aside from soldering equipment) to build a small but speedy vehicle propelled by the wind force generated by a fan attached to a small moto

Item#: 16476 Age: 14+
5 star rating (2 customer reviews)

Photo of the: Solar DIY Micro Car Kit

Solar DIY Micro Car Kit

A simple and highly affordable miniature solar car kit that includes everything you need (aside from soldering equipment) to build a small but speedy vehicle powered solely by the strength of the sun!

Item#: 16090 Age: 14+
5 star rating (6 customer reviews)

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At xUmp.com, we are passionate about science. We believe in hands-on learning and making science fun. - Anton Skorucak, Physicist and Founder

At xUmp.com you will find a large selection of scientific products carefully curated by real scientists and educators. We sell everything from educational toys, teacher supplies for science classroom, lab equipment, science toys, science fair supplies, classroom equipment, chemistry glassware, chemistry lab equipment, physics demos, electronics supplies, robots, science kits to geeky science gifts.