Natural resources, rocks/minerals, and weathering/erosion

Minerals and rocks are not exactly the same. How are minerals and rocks related to each other?​

• Minerals are groups of related rocks.

• Minerals have crystals, but rocks do not.

• Rocks are made up of one or more minerals.

• Rocks contain different chemical compounds than minerals.

Water is an important resource in Florida. Freshwater is used for homes and businesses. Salt water is used for recreation and fishing.

What type of resource is water?​

• human resource

• mineral resource

• renewable resource

• non-renewable resource

Water is a renewable resource found in Florida. The state is surrounded on three sides by the Atlantic Ocean and the Gulf of Mexico. It is also home to many inland freshwater lakes and rivers.

What makes water a renewable resource?

• It does not cause pollution.

• It is constantly recycled so it can be used again.

• It is necessary for all plants and animals to live.

• It takes hundreds of years for water to be created after it is used.

Paul wanted to identify a mineral. He rubbed a corner of the mineral across a white tile and recorded the color of the mark. What property was Paul testing?

Chip and Joanna have two rocks that they think have the same minerals. They decide to conduct a streak test to compare them. They run each mineral along a streak plate, which leaves a line of powder on the plate. What should they observe to compare the rocks?

• whether the powder is dull or shiny

• whether the rock scratched the plate

• the color of the line on the plate

• the shape of the powder crystals

Erosion and weathering are different processes that involve some of the same agents, such as wind, water, and ice.

How is erosion different from weathering?

• Erosion is slower than weathering.

• Erosion is faster than weathering.

• Erosion BREAKS rocks and weathering MOVES rocks.

• Erosion MOVES rocks and weathering BREAKS rocks.

Ms. Flores asks her science class to design an activity that will make rocks smooth like the ones they find near the river.

Which activity shows how a river makes rocks smooth?

• Place rocks in direct sunlight.

• Bury the rocks in soil underwater.

• Put the rocks under a heavy weight.

• Shake the rocks in a container of water.

The table below shows some properties of several minerals. As you are looking at different minerals, you come across one that:

-feels greasy

-has a black streak

-is metallic in luster. 

What mineral are you looking at?​

​​

• calcite

• graphite

• magnetite

• talc

Earth has a great variety of surface features that are caused by weathering and erosion.  Which of the following describes a change only caused by weathering?

• ocean waves washing sand off the beach

• rivers carrying soil and rocks through valleys​

• Wind blowing sand and pebbles off a sand dune​

• Tree roots breaking rocks into smaller pieces of rock

Which verbs describe EROSION? Select ALL.

• carry

• blow

• break

• move