Place the bamboo log in a container filled with enough water to cover it. The log will start cracking within two days and your panda will appear. Once the core of the log is completely exposed, add fresh water to the container. The panda will continue to grow until it reaches its full size within three days! You can do this wonderful experiment vice versa - watch the figure shrink as the water evaporates form it day after day! This panda is a wonderful surprise for every little scientist!