Name ______________________
Date _________________
Mixtures
Answer the following in complete sentences.
1. Give 2 examples of a pure substance.
2. What is a mixture? Put this into your own words
3. Give 4 examples of a mixture not found in your reading.
4. What are the 2 types of mixtures?
5. In your own words, describe a heterogeneous mixture.
6. Give 2 examples of a heterogeneous mixture not found in the reading.
7. In your own words, what is a homogeneous mixture?
8. Give 2 examples of a homogeneous mixture not found in the reading.
9. In your own words, describe a solution.
10.Describe the 2 parts of a solution.
11.Complete the chart below by comparing mixtures and pure substances.
Pure Substance
Both
12.List 3 ways mixtures can be separated.
13.Explain how a mixture can be separated by sifting?
14.Explain how a mixture can be separated by filtration?
15.Explain how a mixture can be separated by evaporation?
Mixtures
Material
Mixture/Pure Substance
Homogeneous or
Heterogeneous
Pure substance
Mixture
Pure substance
Mixture
Homogeneous
Heterogeneous
Heterogeneous
Mixture
Aluminum foil
Air
Soil
Water
Steel
Bag of M & Ms
Sugar water
Pizza
Coffee
Orange juice
Milk and cereal
Salad
(Write a material)
(Write a material)
(Write a material)
(Write a material)
1.
Why is it possible to separate the ingredients in a mixture? The ingredients in a mixture—
A
B
C
D
retain their own physical properties
change color when they are mixed together
look exactly the same as before being mixed
are not able to be separated by hand.
2.
A mixture is a combination of—
A
B
C
D
two or more solids
two or more ingredients
a solid and a liquid
a liquid and a gas
3.
Which of the following is NOT a solution?
A
B
C
D
Powdered drink mix and water
Salt and water
Italian salad dressing
Chocolate syrup and milk
4.
Which word is a synonym for retains?
A
B
C
D
keeps
ingredients
mixtures
separated
5.
A worker in a hardware store accidentally poured some steel nails into a container of aluminum
nails. All of the nails look exactly alike. What would be the best way to separate the mixture of nails?
A
B
C
D
Heat the container until the aluminum nails melt.
Use a hand lens to see the difference between the nails.
Pour water into the container to see which nails float.
Drag a magnet through the container to remove the iron nails.
6.
Which of the following substances would dissolve in water?
A
B
C
D
Powdered drink mix
Milk
Flour
Cooking oil
Use the illustrations below to answer questions 8-10.
1. Sand and iron
filings
2. Ocean
water
3. Salad
Dressing
4. Mixed
Nuts
8.
Which of the mixtures shown above could you separate using only your hands?
A
B
C
D
Sand and iron filings
Ocean Water
Salad Dressing
Mixed nuts
9.
What is the best way to separate the ingredients in the first mixture?
A
B
C
D
Allow the water to evaporate
Allow one ingredient to float on top of the other
Use a magnet to pull out the iron filings
Use a sieve to strain the solids from the liquids
10.
Which mixture could you separate by allowing one substance to float on top of another?
A
B
C
D
Mixture 1
Mixture 2
Mixture 3
Mixture 4