Name: ______________________________
Date: ____________________
Lab: Identifying Elements, Compounds and Mixtures
Directions: Read through the review chart below and answer the pre-lab questions. Then, rotate
through the stations, identifying each new substance as an element, compound or mixture. If it
is a mixture, be sure to include whether it is homogeneous or heterogeneous. Be sure to include a
meaningful reason for your classification!
Element
●
●
Found on the Periodic
Table
Cannot be separated
into a smaller form
chemically or
physically
Compound
●
●
Made of two or more
elements chemically
combined
Example: a water
molecule is 2
Hydrogen atoms and 1
Oxygen atom
chemically bonded
together)
Mixture
●
●
●
●
Made of two or more
elements OR
compounds mixed
together physically
NOT chemically
combined!
Each part keeps its
own chemical identity
Can be heterogeneous
(different throughout)
or homogeneous
(same throughout)
Pre-Lab Questions:
1) What is the difference between an element and a compound?
2) How is a heterogeneous mixture different from a homogeneous mixture?
3) What is the difference between how a compound is combined and how a mixture is
combined?
4) What is easier to separate, a compound or a mixture? WHY?
5) Which can be found on the Periodic Table?
Name: ______________________________
Station
Number/Name of
Substance:
1.___________________
2.___________________
3.___________________
4.___________________
5.___________________
6____________________
7.___________________
8.___________________
9.___________________
10.__________________
Classification:
Element, Compound or
Mixture?
Date: ____________________
What Type of Mixture?
(Heterogeneous or
Homogeneous)
How Do You Know?
Name: ______________________________
Date: ____________________
KEY:
1) Oil and Water - mixture/hetero
2) Copper Wire - element
3) Chalk (CaCO3) - compound
4) Rocks and Sand - mixture/hetero
5) Water - compound
6) Koolaid (or Gatorade) - mixture/homogeneous
7) Aluminum Foil - element
8) Baking Soda (NaHCO3) - compound
9) Salt Water - mixture/homogeneous
10) Salt (NaCl) - compound
Name: ______________________________
Date: ____________________
Station Cards:
Station 1:
Oil and Water
Station 2:
Copper Wire
Name: ______________________________
Date: ____________________
Station 3:
Chalk (CaCO3)
Station 4:
Rocks and
Sand
Name: ______________________________
Date: ____________________
Station 5:
Water (H2O)
Station 6:
Koolaid
Name: ______________________________
Date: ____________________
Station 7:
Aluminum
Foil
Station 1:
Baking Soda
(NaHCO3)
Name: ______________________________
Date: ____________________
Station 9:
Salt Water
Station 10:
Salt (NaCl)