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Question: Which country is highlighted?
Choices:
A. the Federated States of Micronesia
B. Palau
C. Vanuatu
D. Nauru
Answer with the letter. | 0A | |
Lecture: An organism's common name is the name that people normally call the organism. Common names often contain words you know.
An organism's scientific name is the name scientists use to identify the organism. Scientific names often contain words that are not used in everyday English.
Scientific names are written in... | 1B | |
Lecture: A continent is one of the major land masses on the earth. Most people say there are seven continents.
Question: Which continent is highlighted?
Choices:
A. Antarctica
B. Europe
C. North America
D. Australia
Answer with the letter. | 1B | |
Lecture: An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. Groupin... | 0A | |
Lecture: A food web is a model.
A food web shows where organisms in an ecosystem get their food. Models can make things in nature easier to understand because models can represent complex things in a simpler way. If a food web showed every organism in an ecosystem, the food web would be hard to understand. So, each foo... | 3D | |
Lecture: A continent is one of the major land masses on the earth. Most people say there are seven continents.
Question: Which continent is highlighted?
Choices:
A. Europe
B. Australia
C. Africa
D. South America
Answer with the letter. | 0A | |
Lecture: Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two... | 1B | |
Lecture: Birds, mammals, fish, reptiles, and amphibians are groups of animals. The animals in each group have traits in common.
Scientists sort animals into groups based on traits they have in common. This process is called classification.
Question: Select the reptile below.
Hint: Reptiles have scaly, waterproof skin. ... | 0A | |
Lecture: An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. Groupin... | 1B | |
Lecture: Scientists record climate data from places around the world. Precipitation, or rain and snow, is one type of climate data.
A bar graph can be used to show the average amount of precipitation each month. Months with taller bars have more precipitation on average.
Question: Which statement best describes the ave... | 1B | |
Lecture: A food web is a model.
A food web shows where organisms in an ecosystem get their food. Models can make things in nature easier to understand because models can represent complex things in a simpler way. If a food web showed every organism in an ecosystem, the food web would be hard to understand. So, each foo... | 2C | |
Lecture: An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells.
Question: Which property matches this object?
Hint: Select the better answer.
Choices:
A. smooth
B. rough
Answer with the letter. | 0A | |
Question: What is the capital of Texas?
Choices:
A. New Orleans
B. Houston
C. Dallas
D. Austin
Answer with the letter. | 3D | |
Lecture: Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most ma... | 3D | |
Lecture: A grid is made up of lines of squares. They are organized in rows and columns. A grid can help you use a map.
A row is a line of squares that goes from side to side. Rows are marked with letters.
A column is a line of squares that goes up and down. Columns are marked with numbers.
Question: Which i in row B?
C... | 0A | |
Lecture: Scientists use scientific names to identify organisms. Scientific names are made of two words.
The first word in an organism's scientific name tells you the organism's genus. A genus is a group of organisms that share many traits.
A genus is made up of one or more species. A species is a group of very similar ... | 1B | |
Question: Which term matches the picture?
Hint: Read the text.
When immunologists develop a new vaccine, years of testing may be required before it is introduced to humans. Early testing may occur in vitro, or "in glass." In vitro testing is done outside of organisms, in a petri dish or test tube, and can help research... | 1B | |
Question: What is the name of the colony shown?
Choices:
A. New Jersey
B. New York
C. Massachusetts
D. Pennsylvania
Answer with the letter. | 3D | |
Lecture: An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. Groupin... | 0A | |
Lecture: Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
Whether a magnet attracts or repels other magnets depends on the positions of its poles, or ends. Every magnet has two poles, called north and south.
Here are some examples of... | 1B | |
Question: What is true about hurricanes?
Hint: Read the paragraphs and look at the picture. Then answer the question.
This picture was taken high above Earth's surface. It shows Hurricane Isabel over the southeastern United States and the Gulf of Mexico. A hurricane is a large storm with strong wind and heavy rain. Clo... | 1B | |
Lecture: An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
The color, texture, and covering of an animal's skin are examples of adaptations. Animals' skins can be adapted in different ways. For example, skin with thick fur might help ... | 1B | |
Question: What is the name of the colony shown?
Choices:
A. Rhode Island
B. Ohio
C. New Jersey
D. New York
Answer with the letter. | 2C | |
Question: Which country is highlighted?
Choices:
A. Solomon Islands
B. the Marshall Islands
C. Tonga
D. Kiribati
Answer with the letter. | 1B | |
Lecture: A food web is a model.
A food web shows where organisms in an ecosystem get their food. Models can make things in nature easier to understand because models can represent complex things in a simpler way. If a food web showed every organism in an ecosystem, the food web would be hard to understand. So, each foo... | 3D | |
Lecture: Scientists record climate data from places around the world. Temperature is one type of climate data. Scientists collect data over many years. They can use this data to calculate the average temperature for each month. The average temperature can be used to describe the climate of a location.
A line graph can ... | 2C | |
Lecture: Evidence is information that tells you something happened.
How do you look for evidence of a change to Earth's surface?
There are many ways to find evidence of a change to Earth's surface. One way is to look at a picture that was taken after the change.
Here are some examples of what the evidence for different... | 0A | |
Lecture: Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
These pulls and pushes between magnets are called magnetic forces. The stronger the magnetic force between two magnets, the more strongly the magnets attract or repel each oth... | 0A | |
Lecture: The atmosphere is the layer of air that surrounds Earth. Both weather and climate tell you about the atmosphere.
Weather is what the atmosphere is like at a certain place and time. Weather can change quickly. For example, the temperature outside your house might get higher throughout the day.
Climate is the pa... | 0A | |
Lecture: An environment includes all of the biotic, or living, and abiotic, or nonliving, things in an area. An ecosystem is created by the relationships that form among the biotic and abiotic parts of an environment.
There are many different types of terrestrial, or land-based, ecosystems. Here are some ways in which ... | 1B | |
Lecture: Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most ma... | 2C | |
Lecture: In the past, scientists classified living organisms into two groups: plants and animals. Over the past 300 years, scientists have discovered many more types of organisms. Today, many scientists classify organisms into six broad groups, called kingdoms.
Organisms in each kingdom have specific traits. The table ... | 1B | |
Lecture: The temperature of a substance depends on the average kinetic energy of the particles in the substance. The higher the average kinetic energy of the particles, the higher the temperature of the substance.
The kinetic energy of a particle is determined by its mass and speed. For a pure substance, the greater th... | 1B | |
Lecture: Experiments can be designed to answer specific questions. How can you identify the questions that a certain experiment can answer? In order to do this, you need to figure out what was tested and what was measured during the experiment.
Imagine an experiment with two groups of daffodil plants. One group of plan... | 1B | |
Question: What is the capital of New York?
Choices:
A. Montpelier
B. Albany
C. Concord
D. Augusta
Answer with the letter. | 1B | |
Question: Which of these cities is marked on the map?
Choices:
A. Salt Lake City
B. San Francisco
C. Phoenix
D. Seattle
Answer with the letter. | 0A | |
Lecture: A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater... | 0A | |
Lecture: Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
Whether a magnet attracts or repels other magnets depends on the positions of its poles, or ends. Every magnet has two poles: north and south.
Here are some examples of magnet... | 0A | |
Lecture: There are more than 100 different chemical elements, or types of atoms. Chemical elements make up all of the substances around you.
A substance may be composed of one chemical element or multiple chemical elements. Substances that are composed of only one chemical element are elementary substances. Substances ... | 1B | |
Question: What can Cora and Leon trade to each get what they want?
Hint: Trade happens when people agree to exchange goods and services. People give up something to get something else. Sometimes people barter, or directly exchange one good or service for another.
Cora and Leon open their lunch boxes in the school cafet... | 3D | |
Lecture: A change in an object's temperature indicates a change in the object's thermal energy:
An increase in temperature shows that the object's thermal energy increased. So, thermal energy was transferred into the object from its surroundings.
A decrease in temperature shows that the object's thermal energy decrease... | 0A | |
Lecture: Oceans are huge bodies of salt water. The world has five oceans. All of the oceans are connected, making one world ocean.
Question: Which ocean is highlighted?
Choices:
A. the Southern Ocean
B. the Arctic Ocean
C. the Indian Ocean
D. the Atlantic Ocean
Answer with the letter. | 3D | |
Lecture: Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most ma... | 0A | |
Lecture: An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Different objects can have properties in common. You can use these properties to put objects into groups. Groupin... | 2C | |
Lecture: A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater... | 2C | |
Lecture: Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two... | 0A | |
Lecture: Minerals are the building blocks of rocks. A rock can be made of one or more minerals.
Minerals and rocks have the following properties:
Property | Mineral | Rock
It is a solid. | Yes | Yes
It is formed in nature. | Yes | Yes
It is not made by organisms. | Yes | Yes
It is a pure substance. | Yes | No
It has a ... | 0A | |
Question: Which country is highlighted?
Choices:
A. Fiji
B. the Federated States of Micronesia
C. Papua New Guinea
D. New Zealand
Answer with the letter. | 0A | |
Lecture: Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
These pulls and pushes between magnets are called magnetic forces. The stronger the magnetic force between two magnets, the more strongly the magnets attract or repel each oth... | 0A | |
Lecture: The fruits and vegetables we eat are parts of plants! Plants are made up of different structures. The different structures carry out important functions.
The roots take in water and nutrients from the soil. They also hold the plant in place in the soil.
The stem supports the plant. It carries food, water, and ... | 0A | |
Lecture: The temperature of a substance depends on the average kinetic energy of the particles in the substance. The higher the average kinetic energy of the particles, the higher the temperature of the substance.
The kinetic energy of a particle is determined by its mass and speed. For a pure substance, the greater th... | 0A | |
Question: What is the capital of Delaware?
Choices:
A. Wilmington
B. Georgetown
C. Tampa
D. Dover
Answer with the letter. | 3D | |
Lecture: An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
The shape of an animal's feet is one example of an adaptation. Animals' feet can be adapted in different ways. For example, webbed feet might help an animal swim. Feet with th... | 0A | |
Lecture: Scientists use scientific names to identify organisms. Scientific names are made of two words.
The first word in an organism's scientific name tells you the organism's genus. A genus is a group of organisms that share many traits.
A genus is made up of one or more species. A species is a group of very similar ... | 1B | |
Lecture: An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
The shape of an animal's feet is one example of an adaptation. Animals' feet can be adapted in different ways. For example, webbed feet might help an animal swim. Feet with th... | 0A | |
Lecture: The atmosphere is the layer of air that surrounds Earth. Both weather and climate tell you about the atmosphere.
Weather is what the atmosphere is like at a certain place and time. Weather can change quickly. For example, the temperature outside your house might get higher throughout the day.
Climate is the pa... | 1B | |
Lecture: Every substance around you is made up of atoms. Atoms can link together to form molecules. The links between atoms in a molecule are called chemical bonds. Different molecules are made up of different chemical elements, or types of atoms, bonded together.
Scientists use both ball-and-stick models and chemical ... | 3D | |
Lecture: A continent is one of the seven largest areas of land on earth.
Question: Which continent is highlighted?
Choices:
A. South America
B. North America
C. Asia
D. Europe
Answer with the letter. | 3D | |
Lecture: Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
Whether a magnet attracts or repels other magnets depends on the positions of its poles, or ends. Every magnet has two poles: north and south.
Here are some examples of magnet... | 1B | |
Lecture: Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes between magnets are called magnetic forces.
The strength of a force is called its magnitude. The greater the magnitude of the magnetic force between two... | 2C | |
Lecture: A material is a type of matter. Wood, glass, metal, and plastic are common materials.
Question: Which material is this knife made of?
Choices:
A. metal
B. wool
Answer with the letter. | 0A | |
Lecture: Experiments can be designed to answer specific questions. How can you identify the questions that a certain experiment can answer? In order to do this, you need to figure out what was tested and what was measured during the experiment.
Imagine an experiment with two groups of daffodil plants. One group of plan... | 0A | |
Question: Which country is highlighted?
Choices:
A. the Federated States of Micronesia
B. Vanuatu
C. Solomon Islands
D. Fiji
Answer with the letter. | 3D | |
Lecture: Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
Whether a magnet attracts or repels other magnets depends on the positions of its poles, or ends. Every magnet has two poles: north and south.
Here are some examples of magnet... | 0A | |
Question: What is the capital of Alabama?
Choices:
A. Biloxi
B. Montgomery
C. Birmingham
D. Jefferson City
Answer with the letter. | 1B | |
Lecture: An environment includes all of the biotic, or living, and abiotic, or nonliving, things in an area. An ecosystem is created by the relationships that form among the biotic and abiotic parts of an environment.
There are many different types of terrestrial, or land-based, ecosystems. Here are some ways in which ... | 2C | |
Lecture: An organism's common name is the name that people normally call the organism. Common names often contain words you know.
An organism's scientific name is the name scientists use to identify the organism. Scientific names often contain words that are not used in everyday English.
Scientific names are written in... | 1B | |
Lecture: A change in an object's temperature indicates a change in the object's thermal energy:
An increase in temperature shows that the object's thermal energy increased. So, thermal energy was transferred into the object from its surroundings.
A decrease in temperature shows that the object's thermal energy decrease... | 1B | |
Lecture: Experiments can be designed to answer specific questions. How can you identify the questions that a certain experiment can answer? In order to do this, you need to figure out what was tested and what was measured during the experiment.
Imagine an experiment with two groups of daffodil plants. One group of plan... | 1B | |
Lecture: An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Question: Which property matches this object?
Hint: Select the better answer.
Choices:
A. stretchy
B. slippery
An... | 1B | |
Lecture: Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
Whether a magnet attracts or repels other magnets depends on the positions of its poles, or ends. Every magnet has two poles: north and south.
Here are some examples of magnet... | 1B | |
Question: Which state is highlighted?
Choices:
A. Indiana
B. Missouri
C. Minnesota
D. Wisconsin
Answer with the letter. | 2C | |
Lecture: A change in an object's temperature indicates a change in the object's thermal energy:
An increase in temperature shows that the object's thermal energy increased. So, thermal energy was transferred into the object from its surroundings.
A decrease in temperature shows that the object's thermal energy decrease... | 0A | |
Question: Which country is highlighted?
Choices:
A. Australia
B. Solomon Islands
C. Papua New Guinea
D. Tuvalu
Answer with the letter. | 0A | |
Lecture: Offspring phenotypes: dominant or recessive?
How do you determine an organism's phenotype for a trait? Look at the combination of alleles in the organism's genotype for the gene that affects that trait. Some alleles have types called dominant and recessive. These two types can cause different versions of the t... | 0A | |
Lecture: An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
The color, texture, and covering of an animal's skin are examples of adaptations. Animals' skins can be adapted in different ways. For example, skin with thick fur might help ... | 0A | |
Lecture: An adaptation is an inherited trait that helps an organism survive or reproduce. Adaptations can include both body parts and behaviors.
The color, texture, and covering of an animal's skin are examples of adaptations. Animals' skins can be adapted in different ways. For example, skin with thick fur might help ... | 1B | |
Lecture: Offspring phenotypes: dominant or recessive?
How do you determine an organism's phenotype for a trait? Look at the combination of alleles in the organism's genotype for the gene that affects that trait. Some alleles have types called dominant and recessive. These two types can cause different versions of the t... | 1B | |
Lecture: A continent is one of the major land masses on the earth. Most people say there are seven continents.
Question: Which continent is highlighted?
Choices:
A. Australia
B. Asia
C. Europe
D. North America
Answer with the letter. | 2C | |
Question: What is the name of the colony shown?
Choices:
A. Pennsylvania
B. New Jersey
C. Rhode Island
D. New York
Answer with the letter. | 0A | |
Question: What is the name of the colony shown?
Choices:
A. Maryland
B. South Carolina
C. New Jersey
D. Iowa
Answer with the letter. | 1B | |
Lecture: Birds, mammals, fish, reptiles, and amphibians are groups of animals. Scientists sort animals into each group based on traits they have in common. This process is called classification.
Classification helps scientists learn about how animals live. Classification also helps scientists compare similar animals.
Q... | 1B | |
Lecture: Scientists use scientific names to identify organisms. Scientific names are made of two words.
The first word in an organism's scientific name tells you the organism's genus. A genus is a group of organisms that share many traits.
A genus is made up of one or more species. A species is a group of very similar ... | 1B | |
Lecture: Experiments can be designed to answer specific questions. How can you identify the questions that a certain experiment can answer? In order to do this, you need to figure out what was tested and what was measured during the experiment.
Imagine an experiment with two groups of daffodil plants. One group of plan... | 0A | |
Lecture: The temperature of a substance depends on the average kinetic energy of the particles in the substance. The higher the average kinetic energy of the particles, the higher the temperature of the substance.
The kinetic energy of a particle is determined by its mass and speed. For a pure substance, the greater th... | 2C | |
Lecture: An object has different properties. A property of an object can tell you how it looks, feels, tastes, or smells. Properties can also tell you how an object will behave when something happens to it.
Question: Which property matches this object?
Hint: Select the better answer.
Choices:
A. stretchy
B. opaque
Answ... | 1B | |
Lecture: A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater... | 0A | |
Question: What is the capital of Vermont?
Choices:
A. Montpelier
B. Burlington
C. Dover
D. Providence
Answer with the letter. | 0A | |
Lecture: Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most ma... | 1B | |
Lecture: Magnets can pull or push on each other without touching. When magnets attract, they pull together. When magnets repel, they push apart.
These pulls and pushes between magnets are called magnetic forces. The stronger the magnetic force between two magnets, the more strongly the magnets attract or repel each oth... | 2C | |
Lecture: Experiments can be designed to answer specific questions. How can you identify the questions that a certain experiment can answer? In order to do this, you need to figure out what was tested and what was measured during the experiment.
Imagine an experiment with two groups of daffodil plants. One group of plan... | 1B | |
Lecture: The way an organism looks or acts is called a trait. Scientists use fossils to learn more about the traits of ancient organisms.
Fossils can preserve the remains of body parts and activities. A fossil of a body part, such as a tail or a wing, can tell you what an organism looked like. A fossil of an organism's... | 1B | |
Lecture: A solution is made up of two or more substances that are completely mixed. In a solution, solute particles are mixed into a solvent. The solute cannot be separated from the solvent by a filter. For example, if you stir a spoonful of salt into a cup of water, the salt will mix into the water to make a saltwater... | 0A | |
Lecture: A material is a type of matter. Wood, glass, metal, and plastic are common materials.
Some objects are made of just one material.
Most nails are made of metal.
Other objects are made of more than one material.
This hammer is made of metal and wood.
Question: Which material is this coat made of?
Choices:
A. wax... | 1B | |
Lecture: In the past, scientists classified living organisms into two groups: plants and animals. Over the past 300 years, scientists have discovered many more types of organisms. Today, many scientists classify organisms into six broad groups, called kingdoms.
Organisms in each kingdom have specific traits. The table ... | 1B | |
Lecture: Magnets can pull or push on other magnets without touching them. When magnets attract, they pull together. When magnets repel, they push apart. These pulls and pushes are called magnetic forces.
Magnetic forces are strongest at the magnets' poles, or ends. Every magnet has two poles: a north pole (N) and a sou... | 1B | |
Question: What can Layla and Emmy trade to each get what they want?
Hint: Trade happens when people agree to exchange goods and services. People give up something to get something else. Sometimes people barter, or directly exchange one good or service for another.
Layla and Emmy open their lunch boxes in the school caf... | 0A | |
Lecture: Maps have four cardinal directions, or main directions. Those directions are north, south, east, and west.
A compass rose is a set of arrows that point to the cardinal directions. A compass rose usually shows only the first letter of each cardinal direction.
The north arrow points to the North Pole. On most ma... | 0A | |
Lecture: Experiments can be designed to answer specific questions. How can you identify the questions that a certain experiment can answer? In order to do this, you need to figure out what was tested and what was measured during the experiment.
Imagine an experiment with two groups of daffodil plants. One group of plan... | 0A | |
Question: What is the capital of Mississippi?
Choices:
A. Jackson
B. Columbia
C. Charleston
D. Biloxi
Answer with the letter. | 0A |
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