LESSON 1
What is an ecosystem?
All living and non living things in an environment and the many ways they interact.
When two or more living things need the same resources in order to survive.
What are natural resources?
resources found in nature.
What are fossils?
Remains or marks of an animal or plant that lived long ago.
A scientist who studies fossils.
What are the kinds of ecosystems?
tundra, rain forest, desert, grassland, and forest
By covering the soil to prevent erosion.
resources that can be replaced.
Species no longer exist.
What is the geologic time scale?
A timeline of the history of the Earth.
What is a habitat?
How does Kudzu harm habitats?
Resources that exist in limited amounts or are used faster than they can be replaced in nature.
What are sediments?
bits of rock, sand, shell and other materials.
What are fossil fuels?
What is population?
All the members of one species that live within an area of an ecosystem.
Building things, spraying chemicals, cutting down trees.
What is an example of RENEWABLE resources
Water, Solar and wind energy.
What part of the animal turns into fossils?
the hard part.
Are fossil fuels renewable or nonrenewable resources?
Nonrenewable resources
BOUNS QUESTION: What types of ecosystem does North Dakota have?
Wetlands, prairie, grasslands, woodland, riparian area
How do beavers cause change to the environment?
By building dams.
What is are examples of NONRENEWABLE resources?
Fossil fuels, ores
What does amber do?
Preserves all of the insect remains - both the hard and the soft parts.
older fossils