Ch. 6Lesson 1

How do ecosystems change?

Activity-How can pollution affect a habitat?

Time (in minutes) Observations

5 Cup A-

Cup B-

10 Cup A-

Cup B-

15 Cup A-

Cup B-

ways animals change

ecosystems:

1.locusts1. locusts

Locusts Swarm across Africa and the Middle East video clip

2. beavers build dams

How Beavers Affect Their Habitats video clip

3. earthworms dig holes in soil- bring oxygen to

plant roots

ways people change

ecosystems:

1. build houses

2. clear forests

3. introduce new plants & animals

(accidentally or on purpose)

zebra mussels-have no natural predators

Zebra mussels can block water pipes.

garlic mustard plant

4. throw out garbage

Landfills video clip

landfill• pile of garbage

• eventually covered w/ soil & grass

• liners keep harmful chemicals from leaking ground

acid rain• rain that has absorbed pollutants

• pollutes soil & lakes

Activity-Edible LandfillFood Item What it represents

Pie crust Bottom of landfill-Clay soil

Fruit roll ups High density plastic liner

Candy corn

Sprinkles

Mini chocolate chips

Red hots

Body parts

Marshmallows

Gummy worms

Gummy life savers

Gummy bears

Chocolate pudding Layers of soil

Graham cracker crumbs

Chocolate chip cookie House

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Four More!Describe a landfill.

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