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Soil, energy & conservation
SOL K.10, 1.8, 2.7, 3.7, 3.10, 3.11
25
Science
3rd Grade
04/29/2006

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Cards

Term
Energy sources that can be used up and not remade are ____________.
Definition
Nonrenewable resources
Term
What are the three types of soil?
Definition
Sand
Silt
Clay
Term
Name a non-renewable resource.
Definition
Coal
Oil
Natural resource
Term
What are 3 soil layers?
Definition
Topsoil
subsoil
bedrock
Term
Soil takes a long time to form so it can be _________.
Definition
Conserved
Term
Flowing water and wind can be used to generate____________.
Definition
electricity
Term
Name a renewable resource.
Definition
Sun, Water and Wind
Term
Every living thing depends on every other living thing to survive. This is called__________.
Definition
Interdependency
Term
The sun provides ___________ and ________.
Definition
Heat and light
Term
Name a way to prevent erosion.
Definition
Plant grass
terraced hillsides
plant trees and bushes
Term
Sand feels how????????
Definition
Gritty
Term
_____________ comes from trees and is burned to produce heat and light.
Definition
Wood
Term
The breaking down of rocks into smaller pieces is called _________.
Definition
weathering
Term
The moving of rocks and soil by wind, water or gravity is called what?
Definition
Erosion
Term
How does soil help plants?
Definition
It gives nutrients to the plants
Term
Humus is mostly found in what layer of soil?
Definition
Top soil
Term
Which layer of soil do most flowers grow in?
Definition
Topsoil
Term
WHAT IS A NATURAL RESOURCE?
Definition
Something that occcurs in nature and is used by man
Term
What is HUMUS?
Definition
Decayed (rotten) plant and animal matter
Term
Energy sources that can be replaces are called what?
Definition
Renewable resources
Term
_______________ is the careful use and preservation of our natural resources
Definition
CONSERVATION
Term
_________________ is the type of soil that has the smallest particles. Its tiny particles hold water well.
Definition
CLAY
Term
_____________ is the major source of energy for the Earth.
Definition
SUN
Term
Coal Oil and natural gas are called what?
Definition
Fossil fuels and are nonrenewable resources
Term
What 3 things cause erosion?
Definition
water, wind, gravity
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