Kosmos Simple Machines - Physics Experiment Box for Children Aged 8-12, Inspires Learning with 24 Models, Includes Spring Scales, Ideal for Boys and Girls

How does a lever work? What physical effect is in a carousel? In addition to the fun, many exciting discoveries await around the subject of mechanics, In the illustrated step-by-step instructions (English language not assured), many background information is waiting to underpin the intuitive physical understanding that children acquire while playing, The 24 technology models are assembled from over 100 parts. The highlight: the spring scale shows exactly what effect the constructions have