I was once an old massive star and soon I will be a brightly colored gas cloud, but for now I am a massive explosion. What am I called?
I was once called an embryo, but I have now gone through more than eight weeks of development, so my name is now changed to what?
I can be good for you, I can be bad, I can be found all over inside and outside your body. I am microscopic, single-celled and have no nucleus.
On a hot summer day by a lake you are determined to build a boat made of ice, using a refrigeration unit and a large mold in which you can pour water. Nearby you notice an Egyptian mummy resting on a pile of wood pulp. What is the best strategy for building an ice boat that will not melt before you sail it across the lake?
A wise man once called me "the moist star", and in an infinite sea, I can be seen afar. I create motions in which you may ride on for sport, and am also used as a scientist's port. What am I?
