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 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?
Take one out and scratch my head, I am now black but once was red.
What am I ?
I know you may like to eat sugar, but when you eat too much of it and your blood-sugar levels rise, then my good friend Pancreas releases me into the bloodstream to restore blood sugar levels to their norm.
We all know that if you weigh yourself on the moon, it is less than your weight on the Earth. Can you tell me something that actually weighs more on the moon than on Earth?
