unit 4

The smallest particle of matter is the...

• molecule

• atom

• compounds

• elements

A molecule is made...

• when two or more different atoms join together.

• from the same type of atoms.

• when two or more equal atoms join together.

Elements are made from...

• plastic

• molecules

• particles

• atoms

An atom is extremely...

• small

• big

• hard

• soft

Pure substances are made from...

• big particles

• different types of molecules

• one type of atom

  or one type of molecule

• small particles

An example of compound is...

• hydrogen

• pure gold

• oxygen

• pure water

A towel is...

• plastic

• fragile

• soft

• tough

A spoon is...

• hard

• fragile

• soft

• tough

The molecules in matter are never...

• moving

• still

• together

What are some characteristics of thermal conductor?

• Some examples are glass and metal

• Molecules can't move.

• can get very hot.

• Lots of space between molecules.