Living Things Change Their Environment
Changes Affect Living Things
Living Things of the Past
Vocabulary
Dinosaurs
100
This organism returns valuable nutrients to the soil.
What is a decomposer?
100
This natural disaster covers almost all the land in an area with water.
What is a flood?
100
The older a fossil, the _____________it will be found in the ground.
What is lower?
100
Food, water, and air are all considered this.
What are resources?
100
This vast creature of long ago resembles the modern day elephant.
What is Wooly Mammoth?
200
This helps an organism survive.
What is a resource?
200
This can cause an environment to change.
What is a natural disaster?
200
This is the reason the St. Helena Tree became extinct.
What is disease?
200
This is harmful material that damages the air, water, or land.
What is pollution?
200
This ferocious creature of long ago resembles the modern day tiger.
What is a Sabor-toothed Cat?
300
This means to use less of something.
What is reduce?
300
This is all the members of one type of organism in an ecosystem.
What is a population?
300
This activity is why the Red Gazelle became extinct in 1996.
What is over hunting?
300
This is the struggle among living things for survival.
What is competition?
300
This creature of long ago appears to have wings and a beak.
What is a pterodactyl?
400
This means to use something again.
What is reuse?
400
These things can cause disease.
What is mold, bacteria, ad mildew?
400
The flat tooth of a woolly mammoth was used to grind this.
What is leaves and grasses?
400
When there are no more living things of its kind, an organism becomes this.
What is extinct?
400
This great creature from the past has leathery skin and horns on its head.
What is a Triceratops?
500
This means to turn old things into new things.
What is recycle?
500
An organism is this when it has only a few living members of its kind left.
What is endangered?
500
Scientists use this to study how ancient animals used their body parts.
What are similar animals living today?
500
All living things in an ecosystem make up this.
What is a community?
500
This plant became extinct in 2004.
What is the St. Helena Olive Tree?
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