What is DNA?
DNA is a little string of messages inside a cell that tell a cell what to build. DNA inside a plant might tell cells to build purple flowers on the plant or leaves shaped like ovals. DNA inside a human might tell cells to build brown hair on that human or blue eyes. A strand of DNA is so tiny that you can’t see it, BUT you can see lots of DNA strands grouped together. When thousands of DNA strands are extracted, or pulled out, of cells they look like a clear, slimy blob. Here is a video experiment where DNA is extracted from strawberries.