Review Minerals-5

When you break the mineral calcite, it breaks into shapes with flat, smooth sides. This is an example of:

  1. Cleavage

    Yes! A mineral has cleavage when it breaks to form flat, smooth surfaces.
  2. Fracture

    No. There are different kinds of fractures, but none of them form flat, smooth surfaces.
  3. Conchoidal

    No. A conchoidal fracture is the shell-shaped break that is commonly seen when glass breaks. A conchoidal fracture is not flat.
  4. Hardness

    No. Hardness tells us how easily a mineral can be scratched, not how it breaks.



Click to see which state standards this question tests, and which of my videos, experiments, and other resources support that topic.

Florida


SC.4.E.6.2 Identify the physical properties of common earth-forming minerals, including hardness, color, luster, cleavage, and streak color, and recognize the role of minerals in the formation of rocks.
What is a Mineral? video, free
Identifying Minerals video, learnalong
Definition of a Mineral video, free
Minerals Around You text page, learnalong
Review Minerals-1 practice
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Utah


UT.4.III.1.b Observe rocks using a magnifying glass and draw shapes and colors of the minerals.
What is a Mineral? video, free
Identifying Minerals video, learnalong
What is a Rock? video, learnalong
Definition of a Mineral video, free
Review Minerals-3 practice
Review Minerals-4 practice
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Review Minerals-6 practice
Review Minerals-7 practice
Review Minerals-8 practice

UT.8.III.1.b Observe and describe the minerals found in rocks (e.g., shape, color, luster, texture, hardness).
What is a Mineral? video, free
Identifying Minerals video, learnalong
What is a Rock? video, learnalong
Definition of a Mineral video, free
Review Minerals-1 practice
Review Minerals-2 practice
Review Minerals-3 practice
Review Minerals-4 practice
Review Minerals-5 practice
Review Minerals-6 practice
Review Minerals-7 practice
Review Minerals-8 practice

NGSS


5-PS1-3 Make observations and measurements to identify materials based on their properties.