Spanish translations of 19 of the Minneapolis (Minnesota) Public Schools' elementary school science units are presented. The materials were translated for use in a partial immersion program. Unit topics include, among others: magnets, organisms (grade 1), seeds and plants (grade 1), butterflies (grade 2), electricity (grade 3), the food chain (grade 3), current electricity (grade 5), microscopes (grade 5), estimation (grade 6), and space travel. Units are designed based on a three-stage learning cycle of exploration, concept labeling, and concept application. Unit contents vary, but generally include text, class activities, materials lists, blackline masters, illustrations, book lists, instructional hints, and related instructional materials. Most of the text and exercises are in Spanish, with some English. (MSE)