Speed, power, catapults, and collisions! Physics and engineering are full of action! Kids will have the 20 models in this introductory kit racing, rolling, flying, falling, crashing, balancing, and spinning around in 22 action-packed science experiments. After following step-by-step illustrated instructions to build each model — which include a tightrope walker, elevator, crane, windmill, and all-wheel drive ATV — kids test the models to demonstrate and comprehend basic laws of mechanical physics and how they exist in our everyday lives. The experiments provide opportunities to learn about forces, gravity, storing and converting energy, and how the laws of physics apply in our solar system as well as on Earth. While building the models and reading through the manual, young researchers gain hands-on experience with the engineering design process and they learn about various topics in the fascinating world of mechanical physics and engineering. The 80-page, full-color manual presents digestible scientific facts in a fun and straightforward way, enhancing the entertaining yet educational value of this comprehensive science kit. Details: Build models and conduct experiments to explore engineering and physics 142 pieces 22 experiments 80-page, full-color manual For ages 8 and up Contents: 30 red anchor pin 10 hinge 7 shaft plug 6 washer 6 square frame 5 small gear, red 5 3-hole rod 5 90-degree converter - X 4 two-to-one converter 4 joint pin 4 long dual rod 4 wheel 3 5-hole rod 3 axle lock 3 short frame 3 long frame 3 11-hole rod 2 curved rod 2 rubber band, medium 2 axle (10 cm) 2 axle (6 cm) 2 dual frame 2 medium gear wheel, blue 2 small body plate 2 blue anchor pin 2 5-hole dual rod Axle without head (15 cm) Axle without head (4 cm) Axle (7 cm) Worm screw Rubber band, XL Hook Crank Medium pulley wheel Large gear wheel, yellow Extra-large wheel, orange Body plate No. 3 Body plate No. 4 Anchor pin lever Horn Elastic cord String Spiral spring Marble Die-cut sheet For some experiments, you will also need: books of varius sizes and weights, small bottle or other weight, measuring tape or ruler, light objects to weigh, hair dryer or fan, letter paper, scissors, tape, compass, flashlight