ICP final- spring (Chemistry)

TWO things all MATTER has are...

• space & mass

• mass & electrical current

• electric current & brittleness

• hardness & brittleness

What is an ATOM?

• the smallest unit of matter ('stuff'), still with a chemical identity

• the smallest unit of matter mixed in a compound

• a part of an electron

• the parts of the periodic table

What is a COMPOUND?

• a pure substance that cannot be made into simpler substances

• a substance made of atoms bonded together, that can be made into simpler substances

• the smallest unit of matter ('stuff') that still has its own identity

What is a PHYSICAL change?

• the look of something changes, but not the matter

• the matter changes into something new

• anything that is heated

• anything that is completely frozen

Which one is a PHYSICAL change?

• ice melting

• paper burning

• a car rusting

Which one is NOT a physical change?

• cutting paper

• boiling water

• burning matches

Which one is a CHEMICAL change?

• melting

• chopping

• burning

• folding

Which one is NOT a chemical change?

• burning

• melting

• rusting

If minerals dissolve in water... is it PHYSICAL change or CHEMICAL?

• physical

• chemical

If a leaf changes colors in October... is it PHYSICAL change or CHEMICAL?

• physical

• chemical