Grade 3 Social Studies/ Chapter 4
Terms in this set (47)
structure built to allow people and vehicles to move over water or land
waterway that people dig across land for boats to travel through
giant stairs cut into a hillside that is used for farming in areas with little flat land
an earthen or concrete structure that holds back water and helps create electricity through water power
When a ___________ ____________ occurs, it is often hard for people to change their way of life.
The physical and human features of a community make up the ______________________.
People learn to ________________ in order to live in their environment.
The Incas used ____________________ to farm on hillsides.
A ______________ was built in Panama so that ships could travel faster between the Atlantic Ocean and the Pacific Ocean.
Some dams, like the Bagnell Dam, can also be ___________________ that collect and store water.
The government practices ______________________ by setting aside land for special protection.
When smoke in the air mixes with fog, it causes smog, a type of air ________________________.
If people __________________________ materials such as plastic and rubber, less garbage will go into landfills.
to modify, change or make suitable for use
influence one's lifestyle
things in our environment made by people
a path that runs under or through something and speeds up transportation
the moving of water to dry areas
a turbine used to get energy from wind
a human-made lake used for collecting or storing water
to use resources over again
the physical and human features that make up a place
an event in nature that causes great harm or damage to people and their property
a graph that uses pictures or symbols to show the numbers of things
a graph that uses bars to show amounts
anything that makes a natural resource dirty or unsafe to use
working to save resources to make them last longer
something that is difficult or hard to understand
an answer to a problem
a. keep extra supplies.(food,water,blankets, and first aid kit)
b. plan a safe place to go during dangerous weather
What two things can we do to prepare for a natural disaster?
roads, highways, bridges, and railroads
What are 4 ways that people modify their environment to speed up transportation? (p 122)
makes less waste because there will be less trash in the landfills
What does recycling do?
a. people who have had the same problem
b.from books, magazines, or a computer at the library or at home
How can we gather information about a problem we are trying to solve?
people can change what they wear, what they drive and how they use their resources
How can people adapt to the climate? (p 116)
build terraces for growing crops, irrigation (moving water), and mines to get stones from land
What are three ways people modify the land to use resources? (p 124)
unsafe water, soil and air
How does pollution harm the environment?
paper, plastics, glass, aluminum and cardboard
What are five resources that people can recycle?
buy a Hybrid car, recycle and conserve land for future generations
What are two things people can do to care for the environment?
tunnels and canals
What two things speed up transportation?
A tunnel is a path that runs under something.
a waterway dug across land.
which look like giant stairs cut into hillsides
the moving of water to dry areas.
huge structures built to hold back water.
human-made lake used for collecting and storing water
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