Answer:
Physicists have built devices to move me very fast. My last seven letters can be commonly found in newspapers magazines and journals.
The higher I climb, the hotter I engage. I cannot escape my crystal cage. What am I?
As a state in America I am round on both sides and high in the middle.
Feed me and I live. Give me water and I die. What am I?
I have a neck but no head arms but no hands. What am I?
No matter how little or how much you use me, you change me every month.
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic