Investigating God's World Chapter 4 test
Terms in this set (35)
the scientist who study the structure of the earth, are the treasure hunters of today
molten rock that moves like pliable (soft plastic)
decaying plant and animal material
Soil contains ___________ and tiny pieces of weathered rock
chemical and physical
Geologist refer to two major forms of weather; __________________
Pumice, obsidian, and granite are examples of what type of rock?
Limestone, sandstone, shale are examples of what type of rock?
one of our most important building materials. It is made by combining water, sand, and gravel in proper proportions
Hardened cement makes an artificial rock called __________.
The sedimentary rock ___________ can be formed from mud (usually clay); ___________ even smells like mud when it gets wet.
Marble and slate are examples of what type of rock?
Some chalkboards are made from _______ and, in some countries, school-children still use ___________ instead of paper.
is a mineral that is used instead of lead in our pencils
a solid form of a substance having a definite shape, flat surfaces, and sharp edges
rock-like object that looks like a hard mud-ball. It may be hollow or solid and contains beautiful crystal formations made of calcite, quartz, or other minerals.
rare, beautiful minerals which are very hard
gemstones that have been cut and polished
Hardest of all substances; crystals of carbon
The rarest gemstone; red stone
scientist who study minerals
the best conductor of electricity
the most useful metal
a lightweight, silvery-colored metal that can be formed into almost any shape. It is strong, rustproof, and about one third the weight of iron.
mercury or quicksilver
the only metal which is a liquid at room temperature
a silvery-white, radioactive metal, is the primary source of nuclear power
it gives off rays of energy and tiny atomic particles
A black or brown rock-like substance that is found in layers of rock. In many countries, it is used to heat homes.
petroleum or crude oil
names for oil in its natural state
a spring from which columns of boiling water and steam erupt into the air at intervals
people who enjoy exploring caves
plant and animal remains that have turned to stone
is formed when the animal tracks of an animal in the mud that contained the print hardened into rock; they are important because they show the design of a bird's feathers or the structure of leaves and plants.
scientists who study fossils