density

do packed particles make an object more dense or less dense?

• less dense

• more dense

• all of the above

• half and half

what particle gives off a negative charge

• neutron

• electron

• atom

• proton

what particle gives off a positive charge.

• Electron

• neutron

• proton

• atom

____ are the smallest particle.

which is the least dense?

• gas

• water

• ketchup

• lamp oil

gases are the lightest because ______

which of these has the heaviest density?

• water

• helium

• ketchup

• cookie

which has a even amount of density? (heaviest and lightest)

• lamp oil

• water

• ketchup

• helium

atoms are mostly

what particles do atoms have inside them?

• neutrons,protons,electrons

• electrons,protons,nucleus