Fossils Crossword

preserved remains of ancient organisms
Small pieces of rock
the process of which a living thing becomes a fossil
when a living thing is pressed into rock
the imprint of a fossil
when water dissolves the original solid material and replaces it with mineral matter
when when water carries minerals into the cavities of bones, shells, or wood
when all substances of plants or animals decay but the carbon
a sticky residue that fossilizes over time
shows evidence of life by remains, footprints, or tracks

Fossils Crossword

Fossils Crossword

An imprint made by sediment filling a mold and creating the same shape as the once living organism.
Fossils of the actual animal or animal part preserved in ice, amber, or tar.
Formed when an organism dies, breaks down, and only leaves a thin layer of carbon.
Substances such as coal, natural gas, and oil formed from the remains of once living organism.
material that is replaced quickly in nature, alternative source of energy.
The preserved remains or traces of animals, plants, and other organisms of long ago.
to turn into stone or a stony substance.
Rocks made from material that sinks to the bottom of a liquid such as a lake, pond, or ocean.
Person who studdies fossils.
Impressions left behind by an oganism; they record the movements and behaviors.
an imprint made by the outside of a dead plant or animal when water washes the remains out of the rock.
Hardened tree sap yellow to brown in color, that is often a source of insect fossils.
A fossil made by a print or an impression.
An organism no longer alive on Earth.

Fossils Crossword

Fossils Crossword

imprint or remains of plants, or animals that once were alive and lived a very long time ago
gone forever, all of one kind of a plant or animal dies
a fossil made inside a mold when minerals seeped in and hardens into the shapes of the mold 
a fossil of an organism that left an empty space in the rock the shape of the once living organism
a fossil that are the remains of the activity of an animal, such as preserved track ways, footprints, fossilized egg shells, and nests 
a fossil in which the organic remains have been replaced by minerals in the slow process of being replaced with stone
sticky juice from a tree
hardened tree sap, often the source of insect fossils and is usually yellow in color
a scientist who studies fossils
to keep something as it was



Largest particle dries quicl;y and texture is rough and gritty.
Relative proportions of sand, silt, and clay
What the soil is composed of air, water, nutrients, and orgainic matter
the proccess by which the surface of the earth is worn away by the action of water, glaciers, winds, waves, ext.
How much water the soil will allow through
Depends on how many pores and the size of the pores
influenced by the amount of proteins present in the soil
used to identify different types of soil
the break down of rock and minerals by rain, acid, salt, wind, and temperature into sediments
Medium sized particles, texture is smooth and powdery when dry and slippery when wet.
smallest particle; smooth and hard as stone when dry and sticky when wet
Mixture of sand, silt, and clay. Best type of soil for growing plants.
soil layers; more mature soil has more horizons
Mixture of rock, minerals, and organiz matter
living particles in soil
non living particles in soil
Mostly made of decaying leaves, twigs, and animal remains/waste
loose soil that is rich in organic material needed by plants
rich in minerals that are wased down in minerals that are wased downfrom topsoil by rain
slightly broken up rock. plants roots cannot go through this layer. Mostly inorganic.
also knowthe parent material. unweathered solid rock bneath all layers.
the extraction of valuable minerals or geological materials from the earth.
a natrual material with a high concentation of metals and valuable materials that can be extracted for a profit.
when a mine is no longer being used, the land should be restored to its former state or better.
minerals or substances that occur in nature and can be used for economic gain.
a natural resource that can be replaced quickly enough so that we will not run out
hydrocarbons created from the remains of formerly living organisms used for energy.
a natrual resource that we need to use carefully because it cannot be replaced quickly and we will run out.

Earth's Resources Crossword

Earth's Resources Crossword

a type of natural resource that cannot be replaced or can only be replaced after thousands or millions of years
protecting our natural resources and using them responsibly
a type of natural resource that can be replaced
a solid, non-living substance found in nature
a non-living substance made of one or more minerals; there are 3 main types
a material that is burned for energy
a mixture of minerals, weathered rocks, and decayed plants and animal matter
a type of resource found on Earth that is necessary or useful to people
the trace or remains of an organism that lived long ago
type of energy from the sun
died out, leaving no more of that type of organism alive
when harmful things get into the water, air, and land
a type of energy that comes from moving air
energy made from moving or falling water
a type of resource that can be used again and again
energy from living things, plants or animals, or waste
a type of energy made from heat inside the earth
melted rock that is underground in the mantle layer of the Earth
combination of sand, silt, clay and humus; best soil for plants
tiny bits of weathered or broken-down rock and once-living animals and plants

fossils Crossword puzzle

fossils Crossword puzzle

what is a remains of an organism that lived long ago and is preserved in some way?
a scientist who studies fossils and organisms that lived long ago?
a mark or figure impressed or printed on something
formed when sediment fills the inside or covers the outside of a dead organism
preserves the impression of the hard part of an organism
insect fossils preserved in hardened tree sap called
are formed by sediment that is deposited over time, usually as layers at the bottom of lakes and oceans
is a kind of fossil formed when trees that died millions of years ago fell and became covered in mud and sand
when the last existing member dies
are a diverse group of animals that first appeared during the Triassic

C6L1 Fossils and Evolution Crossword

C6L1 Fossils and Evolution Crossword

Naturally preserved remains, imprints, or traces of past life
Scientist who studies fossils
Natural breaking down of dead organisms by fungi, bacteria, insects, and worms
Minerals replace all or part of the organism; usually hard parts- Ex: petrified wood, dinosaur bones; Found where sediments are layed down
Hard parts are first dissolved and then replaced by minerals; details are not perserved- only shape
Thin coating of carbon on rock; all living things contain carbon; thin film remains after decomposition of other elements showing image of organism; can show image of soft, fleshy parts
Hollow area shape (imprint) of the organism
Water carrying dissolved minerals seeps into the empty space of mold and these harden into a shape; a copy of the shape of an organism
Preserved remains with no change; Tar- La Brea Tar Pits = ice age mammals; Amber- insects; Freezing- woolly mammoth
Provide evidence of activities of the organism; also trails and burrows; EX: footprints give clue about size, shape, speed, behaivor

Change Over Time and the Fossil Record Crossword Puzzle

Change Over Time and the Fossil Record Crossword Puzzle

A quantity that can be changed
All the living and nonliving things in an environment
Very old
An organism made of cells and cannot make its own food
The physical or chemical breakdown of rocks and minerals into smaller pieces on Earth's surface
The removal of weathered rock material
Huge piece of Earth's crust
The measurement of radioactive material that an object contains
A species that no longer lives on Earth would be descibed as?
The study of fossils and the fossil record
The ordering of sedimentary layers of rock with the oldest on the bottom and the youngest on top
The study of Earth and rocks
The weather condition of a region or Earth
To break down
An extinct organism with reptile and birdlike features
The information about Earth's history that can be gathered from fossils
Large body of water flowing through land on either side
A Fossil resin from tree sap which may contain insects or other organisms
An organism that can make its own food
Any individual living thing
An amount of rock or soil that has been laid down in an area
Variations between organisms that make the adapted to the environement
A type of fossil formed when sediment fills a mold of an organic object
Evidence that an organism once existed in an area
A large, continuous mass of land
The process by which the characteristics of a species change over many generations
Fossilized evidence of plant existence or animal movements
A natural, solid substance found in rocks
To notice or find
A group of organisms that share similar characteristics and can mate with each other
An organism that is too small for people to see with only their eyes
A theory of how organisms changed over time
The presence of many different types of organisms in an ecosystem
Drawing a conclusion based on evidence
An element that is found in almost all compounds that make up living things
To change over time
A fossil that forms when the remains of an organism leave an imprint in the sediment after the organic material has been completely replaced
The place or role that an organism has in its habitat
A set of statements or principles devised to explain a group of facts



Remains, imprints, or traces of prehistoric organisms.
Remains of species that existed on Earth for a short period of time.
The time taken for any specified property to decrease by half.
Living thing such as animal, plant and human.
Somethings age, to the comparison to the ages of other things.
A thin film of carbon residue is left, forming a silhouette of the original organism
A hard part of something being dissolved and leaving behind a cavity.
Gaps in rock sequences are called _____________.
The solid, nonmetallic mineral matter of which rocks are made of.
The age, in years, of a rock or other object.
A method of dating geological or archeological specimens by determining the relative proportions of particular radioactive isotopes present in a sample.
A fossil of a footprint, trail or burrow.
Belonging to or forming the outer surface or structure of something.
Sometimes conditions allow ________ _________ of organisms to be preserved for millions of years.
A scientist who studies fossils.
Plant matter accumulating, over millions of years, these deposits become completely carbonized, forming ____.
The process in which something is being broken down.
A person, animal, or group living in a place or environment.
Rock formed when sediments are cemented and compacted.
An expert in or student of geology.

Geologic Time and Fossils Crossword

Geologic Time and Fossils Crossword

A record of geologic events and life forms in Earth's history
Name for the period of time in Earth's history thats 90% of Earth's time; cellular organisms lived
Ancient Life includes cambrian explosions
middle Life age of reptiles
Recent life age of mammals
The age of a rock compared to rock layers
The numerical age of an object or event, as established by an absolute-dating process, such as radiometric dating
The preserved remains or traces of an organism that lived in the past
the process by which organic material is turned into stone
spaces in rocks previously occupied by bones or shells
when fossils fill with sediments/minerals and hardens to take it's shape
a fossil of a footprints, trails, burrow, or other traces of animals
The geologic principle that each layer is older then the one above
A break in geologic record created when rock layers eroded
Fossils of widely distributed organisms that only lived for a short period of time
the gradual change in a species over time

Clues to Earth's Past Crossword

Clues to Earth's Past Crossword

Remains, imprints, or traces if prehistoric organisms that can tell when and where organisms once lived and how they lived.
Fossils in which the spaces inside are filled with minerals from groundwater.
Thin film of carbon residue preserved as a fossil.
A type of body fossil that forms in rock when an organism with hard parts is buried.
A type of body fossil that forms when crystals fill a mold or sediments wash into a mold and harden into a rock.
Remains of species that existed on Earth.
States that in undisturbed rock layers.
The age of something compared with other things.
Gap in the rock layer that is due to erosion or periods without any deposition.
Age, in years, of a rock or other object; can be determined by using properties of the atoms that make up materials.
Release of nuclear particles and energy from unstable atomic nuclei.
Time needed for one half of the mass of a sample of a radioactive isotope to decay.
Process used to calculate the absolute age of rock by measuring the ratio of parent isotope to daughter product in a mineral and knowing the half-life of the parent.
Principle stating that Earth processes occurring today are similar to those that occurred in the past.