TY - BOOK AU - Brandwein,Paul Franz AU - Ruchlis,Hyman TI - Invitations to investigate: an introduction to scientific exploration SN - 0152388354 U1 - 501 PY - 1970///] CY - New York PB - Harcourt, Brace, Jovanovich KW - Science N1 - "Based on the card set entitled 100 invitations to investigate ... published in 1966." N2 - Over forty experiments, performed with easily obtainable materials, help the student learn the scientific approach to experimentation and exploration ER -