Recently we have been studying physical and chemical changes in class. We have done a multitude of experiments to allow us to understand exactly what a physical and chemical change is. Photos will be posted soon.
Below is an in class assignment we will be doing as a reinforcement of our learning.
Physical and Chemical Changes in Matter
Monday, April 13, 2015
Curriculum Expectations:
3.4 describe physical changes in matter as changes that are reversible.
3.5 describe chemical changes in matter as changes that are irreversible.
You have investigated physical and chemical changes in matter.
1. What is a physical change? Give three characteristics and explain with examples.
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2. What is a chemical change? Give three characteristics and explain with examples.
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Are the following examples of physical or chemical changes?
a) Mixing vinegar and baking soda: _____________________________
b) Dissolving sugar into water: _________________________________
c) Mixing cornstarch and water: _________________________________
d) Mixing lemon juice with red cabbage: _____________________________
e) Mixing oil and vinegar: __________________________________________
f) A nail rusts: _____________________________________
g) A glass breaks: __________________________
h) A piece of paper burns: __________________________________
i) Ice cube melts: ____________________________
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