Atoms and elements
What identifies an element
The number of protons
What is carbon dioxide if it is made up of carbon and oxygen
Compound
What type energy does a battery store
Chemical energy
What 2 energy source does the United States use
During a physical change what happens
The property of the substance changes but the identity doesn’t
What does the nucleus of an atom contain
Protons and neutrons
What particles can crystals be made of
Atoms, ions, molecules
What kind of energy makes windmills turn
Mechanical energy
What is conservation of energy
When you save energy
what Happens during a chemical change
The identity of the substance changes
Why are elements described as pure substances
Can not be spererated by physical means
what does a filtration seperate
A liquid and a solid
what energy changes happen in an electrical lamp
electrical to mechanical energy
What kind of energy is solar and wind
Renewable energy
Which of these is a physical change
Rusting
Melting
Burning
Rusting
How are elments arranged in the periodic table
By atomic mass
What process would be good for separating a dissolved solid from a liquid
Sifting
What is 3 types of renewable energy
Wind, solar and hydro
What kind of energy is oil, coal and natural gas
Non renewable energy
Which one of these is a chemical change
Rusting
Polishing a stone
Melting
Melting
Which elects are least likely to combine
Noble gases
What is atoms is a water molecule made of
2nhydrogen and 1 water
What is a type of non renewable energy
fossil fuels or nuclear energy
Where is the best place to put a hydro power plant
On a river
What is the law of conservation of mass
When something rust
When something is polished
When a log burns
When a log burns