A _____ is an ecosystem with certain plants, animals, and weather that covers a large area.
Biome
______ is a special process that plants use to make their own food.
Photosynthesis
Name the two types of ecosystem change.
_______describes an organism that used to live on earth but whose population completely died out.
Extinct
It is important not to litter, because some types of trash get _____ by animals.
eaten
____ determines how hot or cold a biome will be and how much rain or snow a biome will get each year.
Weather
What are the four different types of consumers?
How does throwing trash on the ground hurt the ecosystem?
The trash can be eaten by the animals and make them sick or pollute the ocean.
_____describes an organism whose population is in danger of dying out.
Endangered
It is important to conserve ____ because if it is polluted, it can make a person's asthma worse.
air
What four things do plants need to survive?
Light, minerals, carbon dioxide gas, and water
Trees such as they mighty Oak, and the grand American Beech, are examples of ____.
A producer
Name three natural ecosystem changes.
Possible answers: Fire, storm, and drought
Name two of the things that can cause plants and animals to become endangered.
New predators, pollution, over-hunting by humans, disappearing habitats
It is important to conserve _____ because many organisms cannot survive in it if it is polluted.
____ have more different types of plants and animals than any other ecosystem on land?
Tropical rain forests
What do plants make during photosynthesis?
Sugar and oxygen
_____ are used when growing crops to kill the insects that might eat the crops.
Pesticides
What are four materials that fossils are found inside?
Rocks, ice, soil, amber
Planting trees is a way to conserve _____.
land
This biome contains plants that grow low to the ground and animals that are white and have thick fur.
Tundra
The holes on the underside of a leaf are called _____.
Stomata
What are 3 man-made ecosystem changes?
Possible answers: Building, use of natural resources, pollution, fire, catching a ride, etc.
What are examples of marks that can turn into imprint fossils?
Footprint and the pattern of a leaf
A ______ is a type of matter that can interact with other types of matter.
chemical