800.356.1200 Looking for an easy way to find effective maker projects? Visit makerhub.demco.com building & engineering STEM ACTIVITIES 17 KEVA® Catapult Introduce students to the fundamentals of physics as they experiment with force, tension and angles Build your own authentic Catapult, then let the fun and experiments begin! What shoots farther, a marshmallow or a piece of macaroni? How does the objects course change when you pull the arm back to different points? If you make the flight deck higher, how does it affect the hurl? Ages 7+. •  Predrilled wood planks  • Wood glue  • Leather strap  •  2 rubber bands  • Launch cup  • 2 balls  • Target mat  • Various fasteners  0 Product No. Price LD137-7165 $24.99 KEVA® Contraptions 200‑plank Set Help students embrace their creativity as they design engineering marvels Take hands‑on learning to the next level with KEVA Contraptions! Create intricate, tunnels, towers, ramps and chutes with this interactive STEM set. No glue, tools or connectors required — just simple stacking and the laws of gravity. As they build, students learn the principals of slope, velocity, force, momentum and balance. The “bounce” of the ball provides some of the most surprising moves — make it twist, bump, hop and stop. Projects vary in difficultly, making it suitable for a wide range of ages and abilities. Ages 7+ •  200 predrilled wood planks  •  2 lightweight plastic, ping‑pong size KEVA balls  •  Guide book loaded with instructions, photos, ideas and tips  0 Product No. Price LD137-7166 $49.99 Roylco® Straws & Connectors Straws fit snugly into connectors and flex to build almost anything •  232 straws and 168 connectors  •  Includes illustrated how‑to guide  • Ages 4+  0 Product No. Price LD137-4776 $34.99 Roylco® Neon Straws & Connectors Straws fit snugly into connectors and flex to build almost anything •  Features 175 straws and 125 connectors  •  Illustrated how‑to guide included  • Ages 4+  0 Product No. Price LD137-4777 $29.99