Sntieecr electric circuit learning kits, sliding rheostat electric motor kit educational learning toys for kids DIY science project<br> <br><b>Features:</b> <br>This kit is the ideal fun educational gift for kids and teenage who like STEM and science projects, can well develop kids learning skills and hand-on ability<br> <br>The car model assemble kit can inspire kids curiosity and creativity, well learn simple principles<br> <br> <br><b> Knowledge:</b> <br>Parallel circuit: A parallel circuit is one of two basic ways to make a circuit with one or more independent current paths between circuit elements that are connected in parallel.<br> <br>Series-parallel circuit, circuit physical picture method: first to first connection, end-to-end connection, first in and end out.<br> <br>The parallel circuit is such that there is more than one current between the circuit elements constituting the parallel connection.<br> <br><br><b>Package includes:</b> <br>1 x Instructions <br>5 x Crocodile Clip Leads <br>5 x Bulbs <br>3 x Shaft Propeller with 3 Vanes (Different Colors) <br>3 x Shaft Propeller with 4 Vanes (Different Colors) <br>2 x Motor Holder <br>2 x Rocker Switches <br>1 x White Motor <br>1 x Red Motor <br>1 x Buzzer Sounder <br>1 x Bulb Holders <br>1 x AA Size Battery Holder (1 x 1.5V, Battery is NOT included) <br>1 x AA Size Battery Holder (2 x 1.5V, Battery is NOT included) <br>1 x Sliding Rheostat <br>60 x Plastic Gears <br>7 x Car Model Parts <br> <br><b>Warm Notice:</b> <br>1. Please read the circuit pictures carefully, use the correct circuit diagram to avoid short circuit, short circuit will produce high temperature and cause the battery holder case to melt and burned. <br>2. The motor kit suitable for 14+ years, children should use under the supervision of adults. <br>3. Please kindly noted that the instructions is not included the explain about sliding rheostat, plastic gears and car model parts.