I can be a solid, a liquid or a gas? What am I?
a substance
I am the tiniest particle and make up all matter. What am I?
an atom
I am made of only one type of atom. What am I?
an element
You learned only about 20 of my elements, but I have many more. What am I?
Periodic Table
I am a little number next to the chemical symbol of an element. What am I?
atomic number
A juicy apple is hanging on a tree and then it falls on the ground. What energy transfer has just taken place?
gravitational potential into movement/kinetic energy
A diving board says to the doctor, "Doctor, I am so tense. What is wrong with me?" The doctor replies, "Don't worry, it's nothing, you just have a case of ...................
a case of strain energy
I store chemical energy that can be changed into light, sound and heat. What am I?
battery
I am the energy that cannot be used efficiently. What am I?
wasted/dissipated energy
I am invisible but you must trap me first, you compress me hard and I may burst.
air in the balloon
