This hard worksheet pushes first graders to think like young scientists with four multiple choice questions about which animal is a reptile (turtle), what all mammals have (fur or hair), which animal is an insect (ant), and how fish breathe (with gills). Five fill in the blanks then cover amphibians living on land and water, birds using feathers for warmth, a cobra as a reptile, mammals feeding milk, and a grasshopper as an insect. The mix of choosing and recalling builds the careful sorting skills children will need for second grade life science.