We have moved on to our next science topic “Oceans”! Here is what I rediscovered this week…
- The Pacific Ocean has more salt than the Atlantic Ocean. Not sure what other differences this makes but one neat fact is that it is easier to float in the Pacific.
- Fish, such as sharks, tuna and salmon move their tails side to side when they swim but sea mammals such as dolphins and whales move their tails up and down.
- A shark’s skeleton is made entirely of carterige. That is why it can almost bend in half when it thrashes around.
- This one is very depressing: Due to the way the currents move, there is an “island” of trash and garbage about the size of The state of Texas floating in the middle of the Pacific Ocean between California and Hawaii. 😞
Something to think about, huh?