Children's educational and teaching activity kits in the field of science comprised of magnets, electronic circuit boards, thermometers, measuring spoons, acidity analyzers, magnifying glasses, microscopes and laboratory equipment and supplies, namely, petri dishes, beakers, trays and containers, test tubes, stirring sticks, wands and funnels; children's teaching and instructional sets for conducting scientific experiments comprised of electronic circuit boards, thermometers, measuring spoons...