Have you ever heard of a cat who owns an aquarium shop? Meet Reggie. His store is the bubbliest in town! He just got some new fish tanks in different sizes. Can you help him figure out the volume of each so he can fill them up?

Volume tells us how much space something takes up. To find the volume of a rectangular fish tank, you need three things: the length and width of the base, and the height of the tank. Follow the example, then complete the activity to help Reggie get those tanks filled!