Minerals can be classified based on cleavage or fracture. These two properties refer to the way in which a mineral tends to break. Cleavage is an orderly breakage in well-defined planes. It means that the broken
piece of mineral will have flat and smooth sides. Fracture is a random breakage. If a mineral breaks with
rough, random, uneven surfaces, it is said to have fractured. Because each of your mineral samples have
already been broken from another, larger piece of a mineral, you should be able to tell if it has cleavage or
fractures by looking at its sides. Of your 10 minerals, identify three that experienced cleavage.
Cleavage
Fracture

Describe five factors that influence the value of fuel

For a to be healthy, it has to have lots of different kinds of plants and animals. all of the different types of plants and animals in an ecosystem. name four types of ecosystems from those listed in the video. b) c) d) most living things live here. all living things depend on how an ecosystem like a game of sticks? why should we build new buildings on existing land? name four extinct species from those listed in the video. b) c) d) the best way to wipe out a species is to the largest ecosystem in the world is this percent of the world is covered by water. how many of all species in the world live in the ocean? list five things you can do to increase biodiversity. b) c) d) e) how many species are we losing per hour?

The transport tubes for food coming down the plants are called?