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Pebbles, Sand and Silt
Vocabulary words for the "Pebbles, Sand and Silt" FOSS module.
65
Science
1st Grade
02/22/2013

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Term
Alike
Definition
Similar; in the same way.
Term
Amount
Definition
A number; a sum or total.
Term
Asphalt
Definition
A material used to pave roads.
Term
Basalt
Definition
A gray, smooth rock that was once the hot, liquid lava that came out of a volcano.
Term
Bead
Definition
A small, rounded object with a hole through which a thread can be passed; a piece of jewelry.
Term
Boulder
Definition
A rock 10 inches across or larger; a rock larger than a cobble.
Term
Brick
Definition
A rectangular material made of clay that is used to build walls.
Term
Build
Definition
To make or form something.
Term
Cement
Definition
A finely ground powder that sets and hardens when mixed with water.
Term
Clay
Definition
Rocks so small it is hard to see just one; particles that are even smaller than silt.
Term
Coarse
Definition
Made up of larger, rough particles.
Term
Cobble
Definition
A rock that is smaller than a boulder and larger than a pebble.
Term
Collection
Definition
A group of objects to be seen, studied or kept together.
Term
Concrete
Definition
A mixture of cement, gravel, and/or sand that, when mixed with water, will set and harden.
Term
Crystal
Definition
A piece of solid, often transparent material with shiny, flat surfaces that can be identified by its special shape or pattern.
Term
Decay
Definition
When dead plants or animals break down into small pieces.
Term
Different
Definition
Unlike; not alike, or not the same.
Term
Dry
Definition
Free of wetness; not wet; lacking moisture.
Term
Dull
Definition
Not sharp or shiny.
Term
Dust
Definition
Fine pieces of rock.
Term
Earth
Definition
material: Any of the solid, liquid, or gaseous materials that make up Earth.
Term
Fine
Definition
Made up of very small particles, such as a powder.
Term
Flat
Definition
Level, smooth or even; not raised.
Term
Fossil
Definition
A part of a plant or animal that lived long ago and has turned to rock.
Term
Geologist
Definition
A scientist who studies Earth and rocks.
Term
Gravel
Definition
Rocks that are smaller than pebbles.
Term
Group
Definition
To put objects together by similar properties.
Term
Harden
Definition
To dry up and become stronger.
Term
Humus
Definition
Bits of dead plant and animal parts in the soil.
Term
Ingredient
Definition
A piece of a mixture.
Term
Large
Definition
Big in size.
Term
Layer
Definition
A material that likes evenly over or under a different material.
Term
Matrix
Definition
Something that connects other parts together.
Term
Medium
Definition
Made up of middle-sized particles.
Term
Minerals
Definition
The ingredients that make up rocks.
Term
Mixture
Definition
Two or more things mixed together.
Term
Mortar
Definition
Lime or cement or a combination of both, mixed with sand and water and used as a bonding agent between bricks or rocks.
Term
Museum
Definition
A building in which collections of scientific, historical or artistic value are studied and exhibited.
Term
Nutrients
Definition
Something that living things need to grow and stay healthy.
Term
Particle
Definition
A piece of rock.
Term
Pebble
Definition
A rock that is smaller than a cobble.
Term
Pointed
Definition
Having sharp edges or corners.
Term
Rock
Definition
A solid earth material. People who use rocks for making things sort them by size.
Term
Rough
Definition
Bumpy; not smooth.
Term
Same
Definition
Alike; not different.
Term
Sample
Definition
A small part of portion of a material
Term
Sand
Definition
Rocks that are smaller than gravel.
Term
Sandpaper
Definition
Sand that is glued to paper to create different surface textures on wood.
Term
Scoria
Definition
A reddish, bubbly rock that was once the bubbly top of lava.
Term
Screen
Definition
A piece of mesh used to separate a mixture.
Term
Sculpture
Definition
A three-dimensional work of art.
Term
Separate
Definition
To take apart the ingredients of a mixture.
Term
Settle
Definition
To establish a place or position.
Term
Shake
Definition
To move back and forth rapidly.
Term
Sidewalk
Definition
A paved walkway along the side of the street.
Term
Silt
Definition
Rocks that are smaller than sand; particles that are often found in sand.
Term
Size
Definition
How large or small something is.
Term
Small
Definition
Not large.
Term
Smooth
Definition
Flat, level; not rough.
Term
Soil
Definition
A mixture of humus and different-sized earth materials.
Term
Sort
Definition
To arrange by property.
Term
Striped
Definition
Having lines of different shades or colors.
Term
Texture
Definition
How something feels, such as rough or smooth.
Term
Tuff
Definition
A light, soft rock that has ashes in it from the fires of a volcano.
Term
Wet
Definition
Containing or covered with a liquid; not dry.
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