universe
inventors
physics
matter
energy
100

 what is the milky way 

what is our galaxy

100

 who created the lightbulb

who is thomas edison

100

the speed of sound

 mach 1 or mach

100

solid,liquid,gas,plasma

what is 4 types of matter

100

solar energy

what is energy generated by the sun

200

what is in our solar system

 what is 7 planets one star

200

who created the lightning rod 

benjamin franklin

200

kinetic and potential energy

 2 fundamental types of energy

200

NaCl

 what is salt

200

wind energy

what is energy generated by the wind

300

 what is a nova

 what is an exploding star

300

who created the science of nuclear bomb

 who is albert einstein

300

3.14159

what is pi

300

proton,electron,neutron

what is building blocks of atoms

300

geothermal

 what is energy from earth

400

this is 13.7 billion years old

 what is observable universe

400

who created the tesla coil

who is nikola tesla

400

theory of relativity

 what is albert einsteins popular theory

400

118 elements

 what is periodic table

400

mechanical energy

what is kinetic energy and potential energy combined

500

 this is 70 percent of universe

 what is dark matter

500

who created the periodic table

 who isdmitri mendeleev

500

transverse wave

 what is electromagnetic wave

500

212 farenheight

 what is boiling point of water

500

dicensphere

what is machine that absorbs sun energy