Materials
Atoms
Rock Cycle
Rock Cycle 2
Heat Transfer
100

This type of resource is created by humans, such as plastics and synthetic fabrics.

Synthetic Materials 

100

These tiny particles, found in the nucleus, have no electric charge.

Neutrons 

100

This type of rock forms when magma cools and hardens.

Igneous Rock 

100

This process moves rocks and sediments from one place to another by water, wind, or ice.

Erosion 

100

This type of reaction releases heat, often making the surroundings feel warmer.

Exothermic 

200

These resources are found in nature and are not made by humans, like water, minerals, and forests.

Natural Resources 

200

This particle carries a positive charge and is found in the nucleus of an atom.

Protons

200

Sedimentary rocks form through this process, where layers of sediment are pressed together over time.

Compaction

200

When sedimentary or igneous rocks are subjected to heat and pressure, they can change into this type of rock.

Metamorphic Rock 

200

This type of reaction absorbs heat, causing the surroundings to cool down.

Endothermic 

300

Resources like sunlight, wind, and trees that can be replenished naturally over time fall into this category.

Renewable Resources 

300

These negatively charged particles orbit the nucleus in electron clouds

Electrons 

300
  • After compaction, this process binds sediments together with minerals to form solid rock.

Cementation 

300

When rocks are buried, compacted, and cemented, they can form this type of rock.

Sedimentary Rock 

300

This describes the natural direction that heat always moves during heat transfer.

Hot to cold 

400

Oil, coal, and natural gas are examples of this type of resource that cannot be replaced within a human lifetime.

Non-Renewable Resources 

400

This number tells you the number of protons in an atom’s nucleus and determines the element.

Atomic Number 

400

This process breaks down rocks into smaller pieces without changing their chemical composition.

Physical Weathering

400

This is the natural process that returns rocks to the Earth’s interior, where they can melt into magma.

Subduction 

400

When chemical bonds break, this happens to energy—it must be absorbed from the surroundings.

Endothermic

500

his term describes the fact that some resources, like oil, minerals, and freshwater, are found in some regions of the world more than others.

Uneven Distribution 

500

This value is the sum of protons and neutrons in an atom’s nucleus.

Atomic Mass 

500

This type of weathering involves the chemical breakdown of rocks, often changing their composition.

Chemical Weathering 

500

This term describes the continuous process of rocks breaking down, forming new rocks, and changing forms over time.

Rock Cycle 

500

When atoms come together to form new bonds, this happens—energy is released into the surroundings.

Exothermic 

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