3
SCIENCE PRACTICAL
Name: _______________________________________________
Course: _____ Date: _______
The hardness of minerals
PHOTOCOPIABLE MATERIAL
/ © Oxford University Press España, S. A.
Geology 1.º ESO
Quartz
Activities
1. What is order of hardness for the minerals?
2. What minerals would you use to make a mark on a knife?
3. What is the hardness of glass? Explain your answer.
4. Based on this experiment, in your own words define the concept of ‘hardness’.
5. Ask your biology or geography teacher for other minerals to test. Repeat the exercise with these
minerals. What is the name of the mineral? How hard is it?
