Show:
strongest to weakest minerals
electricity
Science history
space
100
quortz
What is the weakest stone
100
curcut
What is completed ________ is al wires conductors are touching
100
no
did the earth always have 7 continents
200
dimand
What is the indestructible stone
200
conducter
What is an metal (coper silver) that electrons can travel trough
200
nil armstrong
Who was the first man on the moon?
200
no
can you breath in space
300
steel
What is the most common materiel in america
300
insulator
What is a material (rubber plastic) that electrons CAN'T travel trough
300
Isaac Newton
Who invented the theory of gravity
300
an asteroid
how did the moon get in earths orbit
400
albert einstein
Who made the theory of relativity
400
a commit
What is a shooting star
500
Titanium
What is the 15th weakest metal
500
atam
electrons at the speed of sound revolve around what
500
Thomas Edison
who invented the light bulb
500
a exploding star that not even light can escape like a vortex
What is a black hole