Planet Research Task Cards and BINGO Game. This product is a planet research center in the form of a BINGO game. The student’s research questions about the planets, if they answer the question correctly they get to put a BINGO piece on their BINGO card in the area for that question. The goal is to try to obtain a Bingo in the given time period. (I usually keep the center out a week) There are 24 planet question cards, a sheet for recording their answers and 5 different bingo cards.