!
simple machines make work easier. you must lift and move this load of soil for your parents. it is heavy! you are using two simple machines when you use this wheelbarrow. what simple machine included in the wheelbarrow makes it easier to move the soil from one place to another?

a) the wheel and axle
b) the bucket (fulcrum)
c) a lever (handles and bucket)
d) an inclined plane (fork holding wheel)

Match each vocabulary term to its definition. 1. electrons neutral subatomic particles found in the nucleus of the atom 2. neutron lowest energy position of an electron in an atom 3. photon the path of an electron around the nucleus of an atom 4. ground state negatively charged, subatomic particles 5. protons packet of energy of specific size 6. element substance with only one type of atom 7. orbital positively charged, subatomic particles found in the nucleus of the atom