Memory Anchor:

• Super Challenge:

  Stretch:

  Challenge:

Key Questions:

1. What are there more of, chemicals or elements?
   • There are more chemicals than elements.
2. What experiments did John Dalton carry out?
   • John Dalton did experiments to break down chemicals until they could not be split any further.
3. What are chemicals that can not be split into other chemicals called?
   • Chemicals that do not split into other chemicals are known as elements.
4. What is an element made of?
   • An element is made of only one type of Particle.
5. What determines the element?
   • The type of Particle determines the element. Each element has a unique number of protons.
6. What are chemicals called that are made of more than one element chemically bonded together?
   • Chemicals made of more than element chemically bonded are known as compounds.
7. What is a compound made up of?
   • Compounds are made up of more than one type of Particle.
8. What did Dalton find out when he split compounds?
   • Dalton found compounds always split into the same proportions.