Changes to Ecosystems

An increase in the average temperature of the earth's atmosphere

• overgraze

• thrive

• global warming

• native species

Tags

NGSS.MS-ESS3-4

NGSS.MS-ESS3-5

If humans cleared a forest to build homes, we would expect _____________.

• fewer tree-dwelling animals

• increased insect populations

• more development of soil

• more frequent thunderstorms

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Invasive species

• a living thing that is introduced to a new environment where it did not come from

• the clearing, or cutting down, of forests

• a substance used to destroy pests (as insects or weeds)

• the process of taking things from the ground

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Deforestation

• a living thing that is introduced to a new environment where it did not come from

• the clearing, or cutting down, of forests

• a substance used to destroy pests (as insects or weeds)

• the process of taking things from the ground

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Pesticide

• a living thing that is introduced to a new environment where it did not come from

• the clearing, or cutting down, of forests

• a substance used to destroy pests (as insects or weeds)

• the process of taking things from the ground

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Which statements refer to the negative impacts humans have on ecosystems? Choose THREE correct answers.

• Factories can pollute the atmosphere.
  

• Dumping waste can pollute the local water supply.
  

• Building highways can cut into natural land.
  

• Creating artificial reefs in the ocean can provide more habitat.

• Planting trees can create new habitats for animals.

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

NGSS.MS-LS2-5

What effect would NOT occur in an ecosystem if humans cut down trees for resources?

• 1. Competition between birds for nesting sites would increase.

• 1. There would be less shelter for squirrels, birds, and other animals.

• 1. The number of plants would increase.

• 1. Animals that rely on trees for food would have fewer food sources,

     increasing competition.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

How could beavers building a dam cause an increase in fish population?  The dam -

• blocks a river and creates a large lake.

• forces many birds to leave the ecosystem.

• removes trees from around the river.

• causes predators to hunt more fish.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which statement correctly describes the impact of a natural disaster on an ecosystem?

• 1. Tornadoes cause magma to rise to the surface. As the lava cools, it forms new

     crust.

• 1. Hurricanes cause severe wind damage and extreme flooding as they make

     landfall along coastal regions.

• 1. Tsunamis cause a severe and abnormal lack of rainfall that impacts animals, crops, and other plant life.

Tags

NGSS.MS-LS2-4

What is a negative of the picture of the manmade changes compared to the natural habitat image?

• The animals will get more food than before

• It destroys the animals' habitat.

• The animals are safe and have found homes more easily.

• There is less pollution than before.

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4