Practice Test

Use the scenario to answer the next two questions.

Wild Hogs

In 1530, Spanish explorer Hernando de Soto traveled through what is now 14 different states, including Mississippi. The explorer brought along pigs (hogs) as a food source. Throughout the 3,100-mile journey, some of the hogs escaped into the wild. These hogs were previously not part of the Mississippi ecosystem and became known as wild hogs. They are classified as an invasive species and cause large amounts of damage to the ecosystem throughout the Southeast to this day.

They use their tusks and hoofs to search for food, which destroys plant life. Wild hogs are omnivores, which means they eat both producers and consumers. There is very little that wild hogs will not eat.

The model shows the position of wild hogs in a Mississippi food web

Humans have made attempts to reduce the numbers of wild hogs. Some methods include using fencing to keep wild hogs out of livestock areas, trapping, and hunting with dogs.

Which statement describes the most likely effect of successful efforts by humans to reduce the number of wild hogs in an area

• Certain animal populations will become extinct.

• New animal species will move into the ecosystem.

• Different types of predators will keep wild hogs from returning.

• Plant species will grow where they were destroyed by wild hogs.

Based on the food web, which three reasons explain why wild hogs are harmful to the ecosystem in Mississippi?

• Wild hogs eat soybeans, which are an important crop.

  Wild hogs eat all the other consumers in the ecosystem.

  Rabbits and eagles must compete with wild hogs for food.

• Wild hogs eat all the other consumers in the ecosystem.

  Rabbits and eagles must compete with wild hogs for food.

  Eagles are an endangered species and are not able to eat wild hogs.

• Wild hogs eat soybeans, which are an important crop.

  Rabbits and eagles must compete with wild hogs for food.

  Wild hogs have no natural predators and therefore become overpopulated.

• Eagles are an endangered species and are not able to eat wild hogs.

  Wild hogs have no natural predators and therefore become overpopulated.

  Wild hogs eat all the other consumers in the ecosystem.

• Wild hogs eat soybeans, which are an important crop.

  Wild hogs have no natural predators and therefore become overpopulated.

  Eagles are an endangered species and are not able to eat wild hogs.

Workers at a warehouse use a steep ramp to help them move large boxes out of a truck.

The ramp is made of painted wood. Workers can slip and fall if the ramp gets wet. A worker at

the warehouse would like to decrease the chances of slipping while using the ramp.

The worker researches four different materials that could be added to the surface of the ramp.

The table shows the possible material types and a description of each material

Part A: Which material should the worker most likely add to the surface of the ramp?

• heavy-duty sandpaper

• ridged carpeting

• plastic sheeting

• paint with sand

Part B: Which sentence best explains the reason for the material selected in part A?

• It keeps friction constant and can be used outside.

• It keeps friction constant and can be used inside.

• It increases friction and can be used in wet locations.

• It decreases friction and can be used in wet locations.

A student made a model of the five planets that are closest to the Sun. The student needs to add more information to the model.

Which two steps should the student perform next?

• Label the four planets closest to the Sun as gas planets.

  Label the largest planet as Mars.

• Label the four planets closest to the Sun as rocky planets.

  Label the largest planet as Jupiter.

• Label the planet that is farthest from the Sun as a gas planet.

  Label the smallest planet as Venus

• Label the planet that is farthest from the Sun as a rocky planet.

  Label the smallest planet as Mercury

Students are making a model of Earth and the Sun.

What does this model best represent, and how should the students complete the model?

• The model represents day and night.

  The students should complete the model by using diagram Y.

• The model represents summer and winter.

  The students should complete the model by using diagram Y.

• The model represents day and night.

  The students should complete the model by using diagram X.

• The model represents summer and winter.

  The students should complete the model by using diagram X.

Students are asked to design a boat that can transport 40 grams of coins from one end of a container of water to the opposite end. Which statement best describes a possible outcome when students follow the engineering design process

• If the boat is successful, the students will improve the design.

• If the boat is unsuccessful, the students will redefine the problem.

• If the boat is successful, the students will communicate the results.

• If the boat is unsuccessful, the students will retest with more coins.

A student researches methods to conserve Earth’s natural resources. The student makes the

list below.

What two conservation methods that would most likely reduce the amount of waste

going into landfills.

•

• Recycle more materials.

  • Plant trees and flowers.

• Recycle more materials.

  Use long lasting light bulbs

• Ride a bicycle to school.

  • Ride the bus or the train.

• Use long lasting light bulbs

  • Open up windows in the summer.

A student combined ice cubes and water in a glass. The ice cubes melted, leaving only liquid water. The masses of the ice cubes and water before the change are shown in the diagram.

Which statement best describes the final mass of the water after the ice has melted?

• It is 60 grams because the final mass does not include the ice cubes because

  they melted.

• It is 110 grams because the beginning mass is equal to the final mass in a

  physical change.

• It is 60 grams because the beginning mass is larger than the final mass in a

  physical change.

• It is 110 grams because the final mass does not include the water because it stayed

  the same.

  10

The model shows positions of the Moon as it orbits Earth.

Based on the information in the model, which position of the Moon would most likely allow a person to observe a full moon?

• position 1

• position 2

• position 3

• position 4