Age 4-16 and up 16 double-sided photo/x-ray cards Engage students in science exploration from the inside out, We"ve printed 16 beautiful animal images on the front of plastic sheets, The images are protected with a special scratch-resistant coating, Examine the photos and then place them on a light table or in a window to reveal the skeletal system of the animals, It"s an excellent way to introduce students in all grades to animals and anatomy, Flip the cards over to get a better look at the skeleton, Compare and contrast the image of the human to the walrus giraffe snake owl etc, 16 animal images including 2 human images, Cards are 8, 5 x 11"" (22 x 28 cm), Includes teacher guide, SKU: EDRE32709