Science center trip!!!

The science centre trip is so interesting and fun!We get to watch the video clip which says that a boy had one letter missing and some months before his three years old birthday,he died.After I watch the video clip,I felt sad for the boy.We made a DNA which looks like a ladder that had been twisted.I also learnt thatfour types of bases which are adenine(A),thymine(T),guanine(G) and cytosine(C)(I also found out some things from my book!)