Public Release Items: Science Grades 8

An electromagnet is shown below.

The diagram below shows the moon in one of its crescent phases.

A student pushed a large rubber ball on a flat, frictionless surface. The ball rolled at a speed of 1 meter per second.

Use the technical passage 'Fill 'Er Up… With Soybeans and Corn' to answer the following question.

Use the technical passage 'Fill 'Er Up… With Soybeans and Corn' to answer the following question.

Use the technical passage 'Fill 'Er Up… With Soybeans and Corn' to answer the following question.

A city might switch from buses that burn fossil fuel to buses that burn B20 diesel fuel. The data table below shows the average kilometers per liter (kpL) of a bus burning B20 diesel and of a bus burning fossil fuel for a seven-month period. The B20 diesel fuel costs more than the fossil fuel.

Use 'The Periodic Table of the Elements' and the information below to answer the following.

In class, students investigated patterns of elements in The Periodic Table of the Elements. Their teacher pointed out a few properties of some common elements. Helium is the lightest inert gas in air. Magnesium burns with a bright white flame. Gold and silver are dense metals.Table salt (sodium chloride) is a combination of two reactive elements. Some properties of common elements are shown in the data table below.

Use The Periodic Table of the Elements and the information below to answer the following.

In class, students investigated patterns of elements in The Periodic Table of the Elements. Their teacher pointed out a few properties of some common elements. Helium is the lightest inert gas in air. Magnesium burns with a bright white flame. Gold and silver are dense metals.Table salt (sodium chloride) is a combination of two reactive elements. Some properties of common elements are shown in the data table below.

Use The Periodic Table of the Elements and the information below to answer the following.

In class, students investigated patterns of elements in The Periodic Table of the Elements. Their teacher pointed out a few properties of some common elements. Helium is the lightest inert gas in air. Magnesium burns with a bright white flame. Gold and silver are dense metals.Table salt (sodium chloride) is a combination of two reactive elements. Some properties of common elements are shown in the data table below.

Use the information below to answer the following.

Fossils of tree ferns as old as 400 million years have been found in rocks. These ancient ferns lived in swampy, lowland forests and reproduced asexually by producing spores. The ferns were much taller than other plants living at the same time. These extinct tree ferns have modern-day relatives that grow in the tropics.

Ancient ground plants competed with ancient tree ferns for resources in swampy areas.

Use the information below to answer the following.

Fossils of tree ferns as old as 400 million years have been found in rocks. These ancient ferns lived in swampy, lowland forests and reproduced asexually by producing spores. The ferns were much taller than other plants living at the same time. These extinct tree ferns have modern-day relatives that grow in the tropics.

Today, many tree ferns have a life cycle that now includes a sexual phase as well as an asexual phase. An egg and a sperm unite to form a fertilized egg.

Kidneys are bean-shaped organs that filter waste from the bloodstream.

The solar system containing Earth consists of a sun and planets.

A student mixed two substances together and concluded that a chemical reaction had taken place.

Use the information and the picture below to answer the following.

Engineers tested the safety of a new model of car. The engineers designed safety tests and collected data from those tests. One test is pictured below.

An apple was placed on the back seat of the car. The car was then accelerated toward the barrier at 60 kilometers per hour (kph).

Use the information and the picture below to answer the following.

Engineers tested the safety of a new model of car. The engineers designed safety tests and collected data from those tests. One test is pictured below.

Use the information and the picture below to answer the following.

Engineers tested the safety of a new model of car. The engineers designed safety tests and collected data from those tests. One test is pictured below.

Elements X and Y react to form compound XY.

Students conducted an investigation to determine if mold grows on only certain types of bread. The students dripped water on four types of bread and covered the damp bread with plastic wrap. Each piece of bread was placed in a different dark area. The data table below shows the information the students collected after four days.

Heat is transferred from one object to another object.

Use the information below to answer the following.

The data table below shows the time of sunrise and sunset in four different cities on May 2. Each city is located within the same time zone of the United States.

Use the information below to answer the following.

The data table below shows the time of sunrise and sunset in four different cities on May 2. Each city is located within the same time zone of the United States.

Use the information below to answer the following.

The data table below shows the time of sunrise and sunset in four different cities on May 2. Each city is located within the same time zone of the United States.

Use the information below to answer the following.

Over the last 150 years, the use of fossil fuels has increased, resulting in more carbon dioxide and other greenhouse gases in the atmosphere. Some scientists think that these atmospheric gases will result in global warming. Scientists have recorded data on global temperature changes and have predicted possible changes in sea level that may affect Maryland residents.

Use the information below to answer the following.

Over the last 150 years, the use of fossil fuels has increased, resulting in more carbon dioxide and other greenhouse gases in the atmosphere. Some scientists think that these atmospheric gases will result in global warming. Scientists have recorded data on global temperature changes and have predicted possible changes in sea level that may affect Maryland residents.

Use the information below to answer the following.

Over the last 150 years, the use of fossil fuels has increased, resulting in more carbon dioxide and other greenhouse gases in the atmosphere. Some scientists think that these atmospheric gases will result in global warming. Scientists have recorded data on global temperature changes and have predicted possible changes in sea level that may affect Maryland residents.

Rossby waves are slow-moving, long ocean waves.

Erosion is responsible for a constant transfer of sediment in a river from locations upstream to locations downstream.

Leaf cells are one type of tree cell.

Use the picture below to answer the following.

Each spring, a crevice in the cliff wall widens and deepens.

Use the picture below to answer the following.

The picture shows a close–up view of fossils found within the cliff wall.

Use the picture below to answer the following.

Silver nitrate (AgNO₃) a colorless powder, consists of the metallic element silver (Ag) and two non–metallic elements, nitrogen and oxygen (N and O). Silver nitrate mixed with water (H₂O) forms a clear solution. When a piece of copper wire (Cu) is put into a silver nitrate solution, the clear solution turns blue. A silvery white substance forms on the wire and falls to the bottom of the solution.

Use the information below to answer the following item.

Silver nitrate (AgNO₃) a colorless powder, consists of the metallic element silver (Ag) and two non–metallic elements, nitrogen and oxygen (N and O). Silver nitrate mixed with water (H₂O) forms a clear solution. When a piece of copper wire (Cu) is put into a silver nitrate solution, the clear solution turns blue. A silvery white substance forms on the wire and falls to the bottom of the solution.

Biologists conduct investigations to learn about living organisms.

Use the information below to answer the following.

The hair dryer in the cross section diagram below transforms one type of energy into other types of energy.

Wire coils in the hair dryer become hot when in use.

Use the information below to answer the following.

The hair dryer in the cross section diagram below transforms one type of energy into other types of energy.

Earthquakes and volcanic eruptions occur both on land and in water.

Students are investigating the physical properties of three solid mixtures by placing each solid mixture in liquid water.

Use the technical passage 'The Good, the Bad, and the Algae' to answer the following question.

Use the technical passage 'The Good, the Bad, and the Algae' to answer the following question.

Use the technical passage 'The Good, the Bad, and the Algae' to answer the following question.

During one year the algae population decreases in the Chesapeake Bay. Below is a partial Chesapeake Bay food chain.

Hikers often use a compass and a map to determine their location. The needle on a compass moves and aligns with the magnetic field of Earth because the needle is magnetized.

Use the information and diagrams below to answer the following.

Astrammina rara is a unicellular organism that is several millimeters long. This organism lives on the ocean floor of Antarctica in an area called Explorer's Cove. Astrammina rara builds a shell by cementing grains of sand from the ocean floor together. The organism either absorbs nutrients from the water or eats other organisms on the ocean floor. The offspring of Astrammina rara have genes identical to the parent. Below is a diagram of an Astrammina rara and a map showing where the organism lives.

Use the information and diagrams below to answer the following.

Astrammina rara is a unicellular organism that is several millimeters long. This organism lives on the ocean floor of Antarctica in an area called Explorer's Cove. Astrammina rara builds a shell by cementing grains of sand from the ocean floor together. The organism either absorbs nutrients from the water or eats other organisms on the ocean floor. The offspring of Astrammina rara have genes identical to the parent. Below is a diagram of an Astrammina rara and a map showing where the organism lives.

Use the information and diagrams below to answer the following.

Astrammina rara is a unicellular organism that is several millimeters long. This organism lives on the ocean floor of Antarctica in an area called Explorer's Cove. Astrammina rara builds a shell by cementing grains of sand from the ocean floor together. The organism either absorbs nutrients from the water or eats other organisms on the ocean floor. The offspring of Astrammina rara have genes identical to the parent. Below is a diagram of an Astrammina rara and a map showing where the organism lives.