We need your help! This polar bear is trying to tell us something but we can’t figure it out! Take a look at the picture and see if you can come up with the best caption.
Oceans cover more than 70% of the planet’s surface – that’s a lot of water! Now, you probably already know that the ocean is more than just a home for fish and other sea creatures, but did you know that it can be used to generate electricity?
