Kennedy measured the daily high temperature outside her home for four days. She compared these measurements to the average high temperature for her region using the table below.
What do Kennedy’s measurements show?
A meteorologist reads a barometer at 9:00 a.m. He reads it again in the afternoon and notices a significant drop in pressure. Which choice describes the most likely weather in the evening for that location?
The map below shows the path of the Gulf Stream as it flows past the coastline of North Carolina.
Which statement best explains how the Gulf Stream affects the climate of North Carolina?
On a hot, humid day Max noticed water droplets had formed on the outside of his bedroom window. What caused water droplets to form on the window?
The stomach helps break down food and move it throughout the body. This diagram shows the structure of the stomach.
Select three statements that correctly describe the stomach.
What will most likely happen to the squirrel population in an area if the trees are removed?
The data table below shows the population of otters in the rivers and streams of a region in North Carolina.
Select three statements the data table supports.
This diagram shows a portion of a forest food web.
Based on the diagram, how is the hawk classified?
This is a food chain in an ocean ecosystem.
The tuna population decreases because of overfishing. Select (click and drag) the effect of the decrease in the tuna population on the other populations in the food chain. Fill in all of the cells. Options may be used more than once.
Jeremy is visiting a zoo and notices that the zebras are herding together in their habitat. Jeremy wonders why the zebras, even the babies, do this. Which question would most likely help him understand this behavior?
Which is an example of an inherited trait?
Bonnie had a rubber ball that weighed
Which example would most likely suggest a new substance was formed?
Why are some materials considered to be good conductors of heat?
A student puts 20 pounds of bricks in one wagon and 30 pounds of bricks in another identical wagon. The same force is applied to both wagons, and their speed is tracked for 20 seconds. Which statement best explains the motion of the wagons?
This graph shows the movement of an object.
How long did the object remain motionless?
The table below shows average temperature measurements from a city.
Between which two days did the city experience the greatest temperature change?
On a warm winter day in North Carolina, the wind is blowing steadily from the south. The wind is supposed to change direction the next day and begin blowing from the north. Which prediction about the weather can be made, based on this information?
The map below shows the state of North Carolina.
During the winter months, western North Carolina generally experiences more snow than eastern North Carolina. Which statement best explains this?
What role does the sun's energy play in the process of transpiration in plants?
The illustrations below show three different types of muscle cells in the human body.
Which statement do the illustrations support?
What do the digestive system and circulatory system of the human body have in common?
What is one way lakes and ponds are different?
Which is a producer in a forest ecosystem?
How do the digestive and circulatory systems differ in how they help the body obtain nutrients?
Alyssa is in the sixth grade. She and her mom share the same hair and eye color. They are planning a trip to Mexico. Alyssa’s mom can speak Spanish but Alyssa cannot. Why is Alyssa unable to speak Spanish?
A student has two hamsters that are brothers. One hamster is named Arnold, and the other is named Chester. Arnold gets a lot of exercise because the student puts Arnold in a cage with a hamster wheel. Chester does not exercise as much as Arnold because the student puts Chester in a different cage without a hamster wheel. After one month, the student notices that Arnold can run much faster than Chester. Which choice best summarizes the student's observations?
Jordan collects some gold, white, and red rocks into a bucket. Then, he shakes the bucket so that the rocks are mixed. Jordan claims the rock mixture is a new substance. Why is Jordan's claim incorrect?
A boy rolls a ball across two different flat surfaces with the same amount of force. The list below describes the motion of the ball on each surface.
Surface 1: The ball rolled one meter in three seconds.
Surface 2: The ball rolled two meters in three seconds.
What could have caused the ball to go farther in the same amount of time on Surface 2?
Two identical balls, X and Y, roll on a flat, horizontal surface. Ball Y rolls faster than ball X. Which statement explains the movement of the balls for 5 seconds?
Which choice describes the organizational structure of humans?
Which choice explains how running as a type of exercise can improve some major systems in the human body?
Sam pushed a toy car across the concrete floor. The car traveled quickly until it reached the carpet, where it slowed down and eventually stopped. What happened to the car?
Which structures work as a group to form tissues?
Questions 3–7 are part of an item set. Use the following information to answer the questions.
Ziba played with a toy truck that could hold up to two wooden blocks. Ziba thinks the truck would move slowest when carrying two blocks.
Ziba carried out an investigation to test her prediction. This list describes Ziba’s investigation:
Ziba placed a yardstick on the wood floor.
She gave the truck a short push and then measured the truck’s position every second.
Ziba recorded the truck’s position and time in a diagram.
Figure 1 shows the diagram of the truck’s motion.
Ziba then repeated the procedure, but this time placed two blocks into the back of the truck. Figure 2 shows the position and time measurements for the truck that carried two blocks.
Ziba pushed the truck in each investigation with equal force. Select two choices that explain the difference in motion shown in Figure 1 and Figure 2.
Ziba determines the truck weighs 35 ounces when holding two blocks. She removes the blocks and weighs the truck again; the truck weighs 29 ounces. Which choice best explains the change in weight?
What was the speed of the truck from Figure 2?
Which choice best describes the motion shown in Figure 1 and Figure 2?
How far will the truck in Figure 1 have travelled after moving for 4 seconds?
Questions 23–27 are part of an item set. Use the following information to answer the questions.
Rabbits, foxes, and hawks live together in a forest ecosystem. In this ecosystem, there are many bushes, ferns, and grasses. A river flows through the ecosystem, providing water to the animals that live there.
The food web below (Figure 1) shows some of the relationships between these organisms.
Scientists have detected a toxin* in the river supply, but it seems to affect only the foxes in the ecosystem. The graph below (Figure 2) shows how the fox population has changed since the toxin was introduced.
*toxin: a substance that can be poisonous to plants or animals
Amy and Belle were discussing ways to help the fox population. There is a grassland ecosystem nearby with these characteristics:
There are few trees, shrubs, and ferns, and no berry bushes in the grassland;
the river does not flow through the grassland;
some rabbits are found in the grassland, but because there are few hiding places, the rabbits are easily caught by hawks.
Amy states that the remaining foxes should be removed from the forest and taken to the grassland. Belle disagrees. Which student is correct?
Scientists have found a way to remove the toxin from the river. What effect would this have on the berry bush population?
Which graph shows how the rabbit population most likely changed after the toxin was introduced?
A scientist fills a beaker with a