Human Impact on the Environment 4th Grade TN Ready #1

Dams are built across rivers to hold water back. A dam also stops dirt, making it build up at the dam's bottom. With less dirt moving down the river, it is harder for some plants to grow. So, the kinds of plants in part Y of the river can change. This may change the kinds of animals in that area. A scientist claims to know how to solve this problem. She says that making a tunnel on the bottom of the dam from one side to the other will help. How could her idea help solve the problem?

• The tunnel makes the river flow the same way as it would without the dam.

• The tunnel lets dirt go down the river to part Y so plants can use it.

• The tunnel lets plants and animals in the dam move down the river to part Y.

• The tunnel breaks the dam so that all the water can flow through.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

The picture is a plastic landfill. Plastic breaks down very slowly. Some plastic can lost for thousands of years. Which of the following could help solve the problem of plastic filling up a landfill?

• Use cloth bags instead of plastic bags for groceries.

• Put used plastic in the recycle bin.

• Use a washable bottle to drink out of.

• All of these.

Tags

NGSS.MS-PS1-3

The picture shows heavy traffic in a big city. The engines in cars and trucks are major sources of air pollution. How can a person decrease the amount of air pollution?

• walk to nearby stores

• use public transportation

• ride a bike to work or school

• all of these

Tags

NGSS.MS-ESS3-4

During periods of drought, communities make decisions about how water should be used. Why might communities decide to limit the use of water for washing cars or watering lawns during a drought?

• because cars are cleaner during droughts

• to save water for more necessary uses

• because lawns get plenty of rain during droughts

• to prevent all of the plants from survivng

Tags

NGSS.MS-ESS3-4

Joey's dad put some fertilizer on the grass in the yard. His had accidentally spilled some of the fertilizer on the sidewalk. What should happen next?

• leave the fertilizer on the sidewalk

• dump the fertilizer into a creek

• use the hose to wash the fertilizer down a storm drain

• sweep up the fertilizer and throw it away

Tags

NGSS.MS-ESS3-3

NGSS.MS-ETS1-1

A wildfire destroys a large number of pine trees in a forest. The pine trees will naturally grow back after the fire, but it will take many years. A local conservation group wants to help the forest grow back more quickly. Which of these would likely be part of the conservation group's plan?

• removing any remaining pine trees and using them for lumber

• planting pine tree seedlings in different places in the forest

• finding new homes for the animals that used to live in the forest

• building homes in places where the forest used to grow

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-5

What can people do to help reduce air pollution?

• cut down all the trees in their yards

• burn their trash as much as they can

• drive their cars as often as possible

• use public transportation as much as possible

Tags

NGSS.MS-ESS3-3

NGSS.MS-ESS3-4

Burning wood and driving gas-powered cars and trucks releases pollution into the atmosphere. Which of the following is a natural resource that we can protect by passing laws that reduce the pollutants released by cars and keep people from burning wood?

• cars

• stars

• houses

• air

Tags

NGSS.MS-ESS3-4