question: Katie wants to get light to turn to rainbow colors by using a lens to filter the light through. In order to get the least colors, Katie will use a lens that is
choices.text: flat curved
choices.label: A B
para: The more curved the surface of a lens is, the more it refracts the light that passes through it.
para_anno.effect_prop: refracted light
para_anno.cause_dir_str: more curved
para_anno.effect_dir_str: more
para_anno.cause_dir_sign: MORE
para_anno.effect_dir_sign: MORE
para_anno.cause_prop: curved lens
question_anno.less_effect_dir: least
question_anno.less_cause_prop: lens
question_anno.less_effect_prop: colors
question_anno.less_cause_dir: colors