Changes to Ecosystems

Changes
in the Environment

Organisms

Natural Disasters

Humans

​What causes environmental changes?

​Organisms

​Natural Disasters

Humans

​Logging/
Deforestation

​Pollution

Multiple Choice

An example of a natural change to the ecosystem is:

• A highway built in the middle of the desert. 
• Lightning strikes and starts a fire in the forest. 

• A rancher placing too many grazers in a small area leading to overgrazing.

Multiple Choice

What is one way an animal can change the ecosystem?

• Chipmunks can hibernate through winter

• Arctic foxes fur changes from brown to white in the winter

• Geese migrate to lay their eggs

• Beavers build a dam on a stream to create their homes

Multiple Choice

Which is NOT an example of a natural environmental change?

• a beaver dam
• a hurricane
• a volcanic eruption
• a housing development

Multiple Choice

Which of these is an example of a natural disaster?

• hurricane

• flood

• drought

• All of the above

Multiple Choice

6. A squirrel makes a change to its environment when it —

• climbs a tree
• digs a hole to bury an acorn
• collects acorns
• jumps from tree to tree

Multiple Choice

Which word means "any species which might soon become endangered"?

• threatened

• endangered

• reproduce

• migration

Multiple Choice

Which word means "any species that is in danger of becoming extinct"?

• endangered

• reproduce

• migration

• abiotic

Multiple Choice

Is this organism endangered, threatened, or extinct?

• Endangered

• Threatened

• Extinct

Multiple Choice

Is this organism endangered, threatened, or extinct?

• Endangered

• Threatened

• Invasive

Multiple Choice

Is this dinosaur threatened, endangered, or extinct?

• threatened
• endangered

• extinct

Your mission

We are going to read about some environmental changes. You decide if the organism is going to move, adapt, or die. Be ready to support your choice.

Poll

You are a rabbit that lives in the grassland. Your area has been in a drought for the past six weeks. Your food source is dying out. What can you do?

• Move

• Adapt

• Die

Poll

You are an owl that lives in the forest. Recently, several other owls have moved into your forest area. You are all competing for a very limited food source. What can you do?

• Move

• Adapt

• Die