Ecosystems
solar system or ecosystem
ecosystem
Plants use sunlight to make their own food which means they are:
producers, consumers, or decomposers
producers
What does it mean to compete?
To try to win.
True or False: Ecosystems can change slowly or quickly.
True
When people drop garbage on the ground, this is an example of:
land pollution or littering
_____ are special parks where plants and animals live.
nature preserves or recycling
Nature preserves
What lives in an ecosystem?
Plants and animals, living and nonliving things
Unlike plants, animals in an ecosystem cannot make their own food which makes them:
producers, consumers, or decomposers
consumers
How do plants compete with other animals?
They compete to win the water that they need to grow.
A seed growing into a tree is an example of a (slow/quick) change in an ecosystem.
Slow
When factories release toxic chemicals into the air it is called:
air pollution
What are the three R's?
Reuse, reduce, recycle
What animals might you see in a forest ecosystem?
bears, fish, rabbits, foxes, etc.
_________ are tiny living things that get their energy by eating dead plants and animals:
producers, consumers, or decomposers
Decomposers
True or False: Some animals eat the same food so they have to compete with one another.
True
A hawk eating a mouse is an example of a (fast/slow) change in an ecosystem.
fast
The oxygen in oceans can decrease and change the way plants and animals grow and survive. What type of pollution causes this?
water pollution
To use less of things that can cause pollution is called:
reuse, reduce, or recycle
Reduce
Which is an example of a very large ecosystem:
a log or the ocean
the ocean
____ eat only plants and ____ eat only animals.
Herbivores and carnivores
Give an example of two animals that might compete to eat a mouse.
An owl and a fox, answer may vary
What is it called when there are no more of a specific plant or animal on the Earth?
Extinct or extinction
What is a way an ecosystem changes that is NOT caused by people?
Natural disasters: fire, hurricane, flood, etc.
To ____ means to use things over and over again instead of throwing them away.
reuse, reduce, or recycle
Reuse
What is an example of a nonliving thing that would be in a forest ecosytem?
rocks, rivers, dirt/soil
Consumers that eat both plants and animals are called:
omnivores
Why might some animals sleep during the day and come out at night?
So they don't have to compete as much with daytime animals.
Explain how an animal becoming extinct, or having a growing population, may change an ecosystem.
If an animal becomes extinct, other animals may not have as much food if they eat it. If the population of an animal grows, there may not be enough food for it OR they may harm the population of the plants or animals they eat.
noise pollution
To _____ means to use old things and make new things.
reuse, reduce, or recycle
Recycle