Mixtures Lab: Answer all questions in your lab NB!
Part I
1. Obtain Test Tube 1. This test tube contains sand. Create a particle diagram in your lab NB.
2. Fill another test tube half way with water. Create a particle diagram in your lab NB.
3. Add the sand to the test tube with the water and mix well. This is called a mixture.
4. If you were to compare two different samples of the mixture, would they be exactly the same?
The term for this type of mixture is heterogeneous.
5. Draw a particle diagram of the heterogeneous mixture in your lab NB.
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Test Tube 1
Water
Mixture
How does the sand in the mixture compare to the sand left in the original test tube?
Could we separate the water and the sand?
Propose a procedure to separate the water and the sand.
Separate the sand and the water.
Part II
1. Obtain Test Tube 2. This test tube contains salt. Create a particle diagram in your lab NB.
2. Fill another test tube half way with water. Create a particle diagram in your lab NB.
3. Add the salt to the test tube with the water and mix well. This is also called a mixture.
4. If you were to compare two different samples of the mixture, would they be exactly the same?
The term for this type of mixture is homogeneous.
5. Draw a particle diagram of the homogeneous mixture in your lab NB.
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9.
Test Tube 2 Water
Mixture
How does the salt in the mixture compare to the salt left in the original test tube?
Could we separate the water and the salt?
Propose a procedure to separate the water and the salt.
Separate the salt and the water.
Part III
1. Obtain Test Tube 1. This test tube contains sand. Create a particle diagram in your lab NB.
2. Obtain Test Tube 2. This test tube contains salt. Create a particle diagram in your lab NB.
3. Add the sand to the test tube with the salt and mix well. This is also called a mixture.
4. If you were to compare two different samples of the mixture, would they be exactly the same?
5. What is the term for this new substance? Two words are necessary!
6. Draw a particle diagram of the mixture in your lab NB.
Test Tube 1 Test Tube 2
Mixture
7. How does the sand in the mixture compare to the sand left in the original test tube?
8. How does the sand in the mixture compare to the sand left in the original test tube?
9. Could we separate the salt and the sand?
10. Propose a procedure to separate the salt and the sand.
11. Separate the sand and the salt.
Part IV
1. Obtain Test Tube 3. This test tube contains sulfur. Create a particle diagram in your lab NB.
2. Obtain Test Tube 4. This test tube contains iron fillings. Create a particle diagram in your lab NB.
3. Add the iron to the test tube with the sulfur and mix well. This is also called a mixture.
4. If you were to compare two different samples of the mixture, would they be exactly the same?
5. What is the term for this new substance? Two words are necessary!
6. Draw a particle diagram of the mixture in your lab NB
Test Tube 3 Test Tube 4
Mixture
7. How does the iron in the mixture compare to the iron left in the original test tube?
8. How does the sulfur in the mixture compare to the sulfur left in the original test tube?
9. Could we separate the iron and the sulfur?
10. Propose a procedure to separate the iron and the sulfur.
11. Separate the iron and the sulfur.
Part V
1. Obtain Test Tube 5. This test tube contains alcohol. Create a particle diagram in your lab NB.
2. Fill another test tube half way with water. Create a particle diagram in your lab NB.
3. Add the alcohol to the test tube with the water and mix well. This is also called a mixture.
4. If you were to compare two different samples of the mixture, would they be exactly the same?
5. What is the term for this new substance? Two words are necessary!
6. Draw a particle diagram of the mixture in your lab NB.
Test Tube 5 Water
Mixture
7. How does the water in the mixture compare to the water left in the original test tube?
8. How does the alcohol in the mixture compare to the alcohol left in the original test tube?
9. Could we separate the water and the alcohol?
10. Propose a procedure to separate the water and the alcohol.
Part VI
1. Observe the test tube in the fume hood. This is sulfur and iron after being heated.
2. Describe the substance in the test tube.
3. Is this still a mixture of iron and sulfur? How do you know?
4. Is it possible to separate the iron and sulfur?
5. Draw a particle diagram for the substances before and after mixing in your lab NB
Test Tube 3
Test Tube 4
Test Tube in Fume Hood