Designed to use simple materials that can be found in almost any household, this document provides elementary teachers and students with activities and worksheets that deal with basic scientific concepts. The activities are intended to help students form and test their own hypotheses. Each topic in the booklet is addressed through a simple experiment and a reproducible worksheet which students can use to record their data. The experiments and activities deal with: (1) absorption of heat; (2) capillary action; (3) cold and warm air; (4) colored pigments; (5) colored lights; (6) condensation; (7) conduction of heat; (8) evaporation; (9) friction; (10) jet propulsion; (11) magnetic attraction; (12) molecular motion; (13) reflections; (14) oils; (15) pulse rate; (16) shadows; (17) sounds; (18) starches; (19) static electricity; (20) sundials; and (21) surface tension. Included are a science word search and some reproducible science award certificates. (TW)