DATE: _____________
NAME: __________________________
CLASS: ______________
Science 8 – Topic 3 – Separating Mixtures Review
Mixtures are complex
Mixtures can be both interesting and confusing, this is because they are so complicated. Before we can
separate these mixtures, we use properties (physical and chemical traits) to help us understand what
we need to do before we separate them.
Answer the following questions as best as you can in the space provided below.
1. Identify each mixture as a physical property or chemical property.
a.
b.
c.
d.
Burning ___________________
Shape ____________________
Hardness ____________________
Melting Point ____________________
e. Color ____________________
Answer the following questions either in bullet form (point form) or in complete sentences.
2. Identify the property that Mina is struggling to explain.
a. Mina and her class are visiting the town landfill, a garbage site, for a school
field trip. As they were taking a tour inside the landfill, she noticed that a
machine with a giant magnet on it was picking up trash. Mina knows what is
happening but cannot quite explain it. Using what you know about separating
mixtures and properties of matter, can you help Mina out?
Separation Techniques
We can break down mixtures by separating them using different types of techniques.
Answer the following questions in complete sentences, use your notes or the textbook to help you.
3. Your friend Davinky has been away for a couple days and needs to catch up.
Being the good friend that you are, you decide to help him out. Help Davinky
define the following words or concepts
a. Desalination
b. Dehydration
c. Filtration
d. Distillation
e. Fractional Distillation
f. Dirty Oil
g. Ore(s)
h. Crushing
Benefits and Cost of Separation Techniques
Separating mixtures have both positives and negatives
Answer the following question as best as you can in either bullet form or complete sentences.
4. Identify 2 positives and negatives with separating mixtures.