28 terms

Houghton Mifflin Science Grade 4 Chapter 8 Lesson 1

STUDY
PLAY

Terms in this set (...)

CRUST
- the outer layer of Earth
- made of ocean floor & continents
CRUST
thinnest layer of Earth
ROCK
The crust is made of this....
ROCK
A solid material made up of one or more minerals.....
MINERALS
A solid material found in Earth's crust that has a definite chemical makeup.....
MANTLE
The thick layer of rock between the crust and the core....
SOLID
The lower part of the mantle is...
SOFT ROCK THAT CAN MOVE LIKE SYRUP
The upper part of the mantle is...
CORE
The innermost layer of Earth....
CORE
A dense ball with liquid outer part & solid inner part....
CORE'S SOLID INNER PART
The hottest part of Earth
THREE
How many basic kinds of rock make up the Earth's crust?
IGNEOUS ROCK
Forms when molten rock from Earth's mantle cools and hardens
- contains different minerals that form crystals
VOLCANO
An opening in the crust where molten rock flows from...
SEDIMENTARY ROCK
Rock that forms when sand, bits of rock & soil, and remains of once-living things harden....
SEDIMENT
sand, bits of rock & soil, remains of once-living things
WEATHERING
Breaking rock into sediment is called....
WIND
MOVING WATER
MOVING ICE
What carries sediment?
LOW PLACES
Where does sediment settle after moving?
SEDIMENTARY ROCK
When sediments settle, harden, and are cemented together by minerals....
METAMORPHIC ROCK
New rock that forms when existing rocks are changed beneath Earth's surface by
- heat
- pressure
- chemicals
YES
Can igneous and sedimentary rocks change into metamorphic rock?
YES
Can any kind of rock change into any kind of rock?
ROCK CYCLE
The continuous series of changes of rocks is...
OBSIDIAN
BASALT
GRANITE
Examples of igneous rock (formed when melted rock hardens)
LIMESTONE
SHALE
Examples of sedimentary rock
MARBLE
When heat/pressure is added to limestone
- WEATHERING
- HEAT
- PRESSURE
Three ways rocks can change

Flickr Creative Commons Images

Some images used in this set are licensed under the Creative Commons through Flickr.com.
Click to see the original works with their full license.