Since this week is National Wildflower Week, we’re spending the week looking at the plant world. First a quick look at the evolution of plants.

Biologists believe that plants evolved from algae between 400 and 500 million years ago. The first plants were bryophytes that did not have vascular tissue- that means that they didn’t have special systems for moving water and nutrients from one part of the plant to another- instead these things moved by osmosis.

For New Hampshire’s April school vacation week, when none of us is actually going anywhere, we decided to focus on things we could do if we did have some sort of wild vacation adventure and ended up on a deserted island-

Maybe at this point, despite how much fun it might be on a deserted island, you’ve decided you want to go back home again. Whether that’s in a boat that has miraculously appeared (or you decide to accept this week’s Saturday STEM Challenge) or because you’ve finally figured out how the Professor on Gilligan’s Island made a radio out of coconuts and now you can broadcast a message asking for help, you need to know where you are before you can get home.

There are two pieces of information you need to determine that: your longitude and your latitude.