Rocks
Soil
Vocabulary
Changes to Earth
Random
100
A rock is a solid that is made of ____________.
one or more minerals
100
Name the 4 types of soil.
loam, clay, sand, and silt
100
What is weathering?
breaking down of rocks
100
B- a river eroding sediments
100
What could I demonstrate with a straw (wind) and sand?
Erosion (and deposition)
200
The _________ of a rock describes how easily the surface can be scratched.
hardness
200
Which soil can be described as wet and reddish-brown?
clay
200
What is erosion?
the movement of rocks
200
wind erosion of sand dunes
200
On Monday a construction company used machines to destroy large rocks in a field. On Tuesday the construction company used a bulldozer to move the rocks away from the field. On Wednesday the construction company began leveling the field to build houses. Which vocabulary word describes what the construction company did on Tuesday?
erosion
300
List two words that describe a rock's luster.
metallic, non-metallic, pearly, dull
300
Describe the color and ability to retain water of sand.
it is usually tan and it does not retain water (the water drains easily)
300
What is deposition?
Rocks being dropped (deposited) into a new place
300
List 4 reasons a rock may be weathered.
humans, animals, wind, water, ice, sun
300
On Monday a construction company used machines to destroy large rocks in a field. On Tuesday the construction company used a bulldozer to move the rocks away from the field. On Wednesday the construction company began leveling the field to build houses. Which vocabulary word describes what the construction company did on Monday?
weathering
400
Which is harder- topaz or gypsum?
topaz
400
Describe loam's ability to grow plants.
loam is the best soil for growing most plants
400
What does classify mean?
to sort or group based on certain characteristics/attributes/properties
400
List 4 reasons rocks may be eroded.
wind, water, animals, humans, ice, gravity
400
Which soil easily drains water? How does this affect its ability to grow plants?
sand- it does not hold the water needed to grow plants
500
Name the four ways we classified rocks.
color, texture, hardness, luster
500
What is soil made of?
air, water, particles of rock, decomposing matter
500
What is luster?
How the rock's surface reflects light
500
A sand dune is formed when particles of sand are eroded by the wind and then __________ into a new place.
deposited/dropped (deposition)
500
Which soil can be described as "just right"? Explain.
loam- it's not too wet, it's not too dry... it's just right! It doesn't drain all the water, it doesn't hold all the water... it's just right! It's the perfect mixture of sand, clay, and silt.