Show:
Vocabulary 1
Vocabulary 2
Comprehension 1
Comprehension 2
True or False
100
To reuse things, such as bottles and cans, means to ______.
recycle
100
What is the place where a living thing makes its home called?
What is a habitat.
100
Name one example of a thing that lives in soil and helps the environment.
worms, bacteria, or fungi
100
What adaptation of beavers helps them to take down trees?
their teeth
100
Crocodiles are extinct.
False
200
What is harmful material that damages the air, water, or land called?
What is pollution.
200
When most or all of one type of living thing dies it becomes _________.
extinct
200
Over time, mammoths dies off and became _________.
extinct
200
The polar bear grew _______fur as its environment got colder.
thicker
200
Living things and weather change our environment.
True
300
What is the hardened remains of a plant or animal called?
What is a fossil.
300
When you use fewer things to begin with you _________.
conserve
300
An ecosystem, a community, and a population are all part of A) conserving B) pollution C) an environment D) recycling
C) an environment
300
Name 2 ways people can improve our environment.
1) recycling paper, bottles, and cans 2) conserving our natural resources 3) reducing pollution in air, water, and soil
300
Scientists study fossils to learn about the past.
True
400
A contest for something, such as a struggle for resources, is called a ____________.
competition
400
All of one type of living thing in a community is called a ___________.
population
400
List two effects of dry weather on the prairie.
1) It might kill the grass. 2) Prairie dogs may run out of food and move. 3) If prairie dogs went away, other animals may need to move also.
400
Name one extinct animal and the animal it is like today.
wooly mammoth = elephant dilophosaurus dinosaur = frilled lizard saber-tooth cat = tiger
400
All plants and animals have survived in their ecosystems.
False
500
Living and nonliving things that share an environment is called an _____________.
ecosystem
500
All of one type of living thing in an ecosystem is called a ____________.
community
500
Name 2 ways plants move into a new environment.
1) blowing in the wind 2) being carried on a person or animal 3) float down a river
500
Name 2 ways a new kind of illness can get from one place to another.
1) people 2) animals 3) plants
500
About 14% of our trash is disposed in landfills.
False, it is about 60%!