Physical Science - 5th Grade Science
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Select the answer that is a physical change.
Select the answer that is a physical change.
A physical change is a change is a substance that does not change what the substance is. In contrast, in chemical change a new substance is formed.
Let's look at our options:
When wood is burned, the wood turns into ash. We can't get the piece of wood back once it's been burned; thus, wood burning is a chemical change.
When a cake is baked, the ingredients combine and turn into a cake once it's baked. Once we have a cake, we can't get the ingredients back; thus, baking a cake is a chemical change.
When a nail rusts, pieces of the metal nail have turned into rust. We can't get the original nail back; thus, a nail rusting is a chemical change.
Ice is made up of water, and when the ice melts we are left with a puddle of water. If we freeze the water, it will turn back into ice; thus, melting ice is a physical change.
A physical change is a change is a substance that does not change what the substance is. In contrast, in chemical change a new substance is formed.
Let's look at our options:
When wood is burned, the wood turns into ash. We can't get the piece of wood back once it's been burned; thus, wood burning is a chemical change.
When a cake is baked, the ingredients combine and turn into a cake once it's baked. Once we have a cake, we can't get the ingredients back; thus, baking a cake is a chemical change.
When a nail rusts, pieces of the metal nail have turned into rust. We can't get the original nail back; thus, a nail rusting is a chemical change.
Ice is made up of water, and when the ice melts we are left with a puddle of water. If we freeze the water, it will turn back into ice; thus, melting ice is a physical change.
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Select the answer that is a physical change.
Select the answer that is a physical change.
A physical change is a change is a substance that does not change what the substance is. In contrast, in chemical change a new substance is formed.
Let's look at our options:
When wood is burned, the wood turns into ash. We can't get the piece of wood back once it's been burned; thus, wood burning is a chemical change.
When a cake is baked, the ingredients combine and turn into a cake once it's baked. Once we have a cake, we can't get the ingredients back; thus, baking a cake is a chemical change.
When a nail rusts, pieces of the metal nail have turned into rust. We can't get the original nail back; thus, a nail rusting is a chemical change.
Cutting a piece of wood does not change the wood, it's still a piece of wood, just smaller; thus, cutting a piece of wood is a physical change.
A physical change is a change is a substance that does not change what the substance is. In contrast, in chemical change a new substance is formed.
Let's look at our options:
When wood is burned, the wood turns into ash. We can't get the piece of wood back once it's been burned; thus, wood burning is a chemical change.
When a cake is baked, the ingredients combine and turn into a cake once it's baked. Once we have a cake, we can't get the ingredients back; thus, baking a cake is a chemical change.
When a nail rusts, pieces of the metal nail have turned into rust. We can't get the original nail back; thus, a nail rusting is a chemical change.
Cutting a piece of wood does not change the wood, it's still a piece of wood, just smaller; thus, cutting a piece of wood is a physical change.
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Select the answer that is a chemical change.
Select the answer that is a chemical change.
A physical change is a change is a substance that does not change what the substance is. In contrast, in chemical change a new substance is formed.
Let's look at our options:
Ice is made up of water, and when the ice melts we are left with a puddle of water. If we freeze the water, it will turn back into ice; thus, melting ice is a physical change.
Cutting a piece of wood does not change the wood, it's still a piece of wood, just smaller; thus, cutting a piece of wood is a physical change.
Butter melting is similar to ice melting. When butter melts, it can be frozen back to butter; thus, butter melting is a physical change.
When wood is burned, the wood turns into ash. We can't get the piece of wood back once it's been burned; thus, wood burning is a chemical change.
A physical change is a change is a substance that does not change what the substance is. In contrast, in chemical change a new substance is formed.
Let's look at our options:
Ice is made up of water, and when the ice melts we are left with a puddle of water. If we freeze the water, it will turn back into ice; thus, melting ice is a physical change.
Cutting a piece of wood does not change the wood, it's still a piece of wood, just smaller; thus, cutting a piece of wood is a physical change.
Butter melting is similar to ice melting. When butter melts, it can be frozen back to butter; thus, butter melting is a physical change.
When wood is burned, the wood turns into ash. We can't get the piece of wood back once it's been burned; thus, wood burning is a chemical change.
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Which of the following are substances?
Which of the following are substances?
The answer is "all of these."
A substance is anything that takes up space and has mass. Substances can exist in solid, liquid, and gas form. When you mix two substances and you might or might not create something new, and it all depends on what two substances you are mixing. Ripping, tearing, smashing, stirring, squishing, and changing the shape of a substance by mixing it with another is called a physical change. Chemical changes occur when a new, third substance is created by combining two substances. Signs of a chemical change include, release of heat, bubbles, a color change, and smells!
The answer is "all of these."
A substance is anything that takes up space and has mass. Substances can exist in solid, liquid, and gas form. When you mix two substances and you might or might not create something new, and it all depends on what two substances you are mixing. Ripping, tearing, smashing, stirring, squishing, and changing the shape of a substance by mixing it with another is called a physical change. Chemical changes occur when a new, third substance is created by combining two substances. Signs of a chemical change include, release of heat, bubbles, a color change, and smells!
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What happens when you mix two substances?
What happens when you mix two substances?
A substance is anything that takes up space and has mass. Substances can exist in solid, liquid, and gas form. When you mix two substances and you might or might not create something new, and it all depends on what two substances you are mixing. Ripping, tearing, smashing, stirring, squishing, and changing the shape of a substance by mixing it with another is called a physical change. Chemical changes occur when a new, third substance is created by combining two substances. Signs of a chemical change include, release of heat, bubbles, a color change, and smells!
A substance is anything that takes up space and has mass. Substances can exist in solid, liquid, and gas form. When you mix two substances and you might or might not create something new, and it all depends on what two substances you are mixing. Ripping, tearing, smashing, stirring, squishing, and changing the shape of a substance by mixing it with another is called a physical change. Chemical changes occur when a new, third substance is created by combining two substances. Signs of a chemical change include, release of heat, bubbles, a color change, and smells!
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Sydnie is making a sand castle on the beach. She mixes water with her sand to make sure it's wet enough to mold into the shapes she wants. Is Sydnie making a new substance when she mixes sand and water? How do you know?
Sydnie is making a sand castle on the beach. She mixes water with her sand to make sure it's wet enough to mold into the shapes she wants. Is Sydnie making a new substance when she mixes sand and water? How do you know?
The answer is "No, Sydnie is not making a new substance because only the shape of the sand and water changes."
A substance is anything that takes up space and has mass. Substances can exist in solid, liquid, and gas form. When you mix two substances and you might or might not create something new, and it all depends on what two substances you are mixing. Ripping, tearing, smashing, stirring, squishing, and changing the shape of a substance by mixing it with another is called a physical change. Chemical changes occur when a new, third substance is created by combining two substances. Signs of a chemical change include, release of heat, bubbles, a color change, and smells!
The answer is "No, Sydnie is not making a new substance because only the shape of the sand and water changes."
A substance is anything that takes up space and has mass. Substances can exist in solid, liquid, and gas form. When you mix two substances and you might or might not create something new, and it all depends on what two substances you are mixing. Ripping, tearing, smashing, stirring, squishing, and changing the shape of a substance by mixing it with another is called a physical change. Chemical changes occur when a new, third substance is created by combining two substances. Signs of a chemical change include, release of heat, bubbles, a color change, and smells!
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Sarah has a big box where she keeps her toys. She has all kinds of toys: wooden horses, plastic legos, dolls, stuffed animals, and even metal race cars! When Sarah plays, she puts everything out on the carpet, and when she cleans up she puts them all back in her big box. When Sarah was cleaning up yesterday, she saw that one of her race cars was orange and rusty! Her grandma said it's because it got wet. Which of the answer choices is NOT true about Sarah and her big box of toys?
Sarah has a big box where she keeps her toys. She has all kinds of toys: wooden horses, plastic legos, dolls, stuffed animals, and even metal race cars! When Sarah plays, she puts everything out on the carpet, and when she cleans up she puts them all back in her big box. When Sarah was cleaning up yesterday, she saw that one of her race cars was orange and rusty! Her grandma said it's because it got wet. Which of the answer choices is NOT true about Sarah and her big box of toys?
The answer is "When Sarah puts all her toys in the box, it makes a new substance."
A substance is anything that takes up space and has mass. Substances can exist in solid, liquid, and gas form. When you mix two substances and you might or might not create something new, and it all depends on what two substances you are mixing. Ripping, tearing, smashing, stirring, squishing, and changing the shape of a substance by mixing it with another is called a physical change. Chemical changes occur when a new, third substance is created by combining two substances. Signs of a chemical change include, release of heat, bubbles, a color change, and smells!
The answer is "When Sarah puts all her toys in the box, it makes a new substance."
A substance is anything that takes up space and has mass. Substances can exist in solid, liquid, and gas form. When you mix two substances and you might or might not create something new, and it all depends on what two substances you are mixing. Ripping, tearing, smashing, stirring, squishing, and changing the shape of a substance by mixing it with another is called a physical change. Chemical changes occur when a new, third substance is created by combining two substances. Signs of a chemical change include, release of heat, bubbles, a color change, and smells!
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Which of the pictures represents how substances can be combined to create an entirely new substance?
Which of the pictures represents how substances can be combined to create an entirely new substance?
A substance is anything that takes up space and has mass. Substances can exist in solid, liquid, and gas form. When you mix two substances and you might or might not create something new, and it all depends on what two substances you are mixing. Ripping, tearing, smashing, stirring, squishing, and changing the shape of a substance by mixing it with another is called a physical change. Chemical changes occur when a new, third substance is created by combining two substances. Signs of a chemical change include, release of heat, bubbles, a color change, and smells!
A substance is anything that takes up space and has mass. Substances can exist in solid, liquid, and gas form. When you mix two substances and you might or might not create something new, and it all depends on what two substances you are mixing. Ripping, tearing, smashing, stirring, squishing, and changing the shape of a substance by mixing it with another is called a physical change. Chemical changes occur when a new, third substance is created by combining two substances. Signs of a chemical change include, release of heat, bubbles, a color change, and smells!
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What is a mixture?
What is a mixture?
A mixture is when two or more substances are combined to create something new. The substances can remain separate like a salad or trail mix, but still, something new is formed. Another type of mixture is a solution when one substance dissolves into another like salt being stirred into water.
A mixture is when two or more substances are combined to create something new. The substances can remain separate like a salad or trail mix, but still, something new is formed. Another type of mixture is a solution when one substance dissolves into another like salt being stirred into water.
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True or False: A mixture involving liquid cannot be separated.
True or False: A mixture involving liquid cannot be separated.
Many people have the misconception that once a substance has been mixed into a liquid that it cannot be separated. When something like salt is stirred into water, it seems to disappear, so the thought of separating it can be hard to imagine. There is no way to sift the salt out or remove the salt pieces with forceps. If the water is set in the sunlight, it will begin to evaporate and leave behind the salt that was mixed in.
Many people have the misconception that once a substance has been mixed into a liquid that it cannot be separated. When something like salt is stirred into water, it seems to disappear, so the thought of separating it can be hard to imagine. There is no way to sift the salt out or remove the salt pieces with forceps. If the water is set in the sunlight, it will begin to evaporate and leave behind the salt that was mixed in.
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Which answer choice(s) is an example of a mixture?
Which answer choice(s) is an example of a mixture?
All of the answer choices are examples of mixtures. Smoke is a mixture of ash and air, trail mix is a mixture of all of the different ingredients (raisins, peanuts, chocolate chips, etc.), and a closet of clothes is a mixture of varying clothing types (pants, dresses, skirts, shirts, hats, etc.). All of these answer choices have at least two substances that are mixed to form something new.
All of the answer choices are examples of mixtures. Smoke is a mixture of ash and air, trail mix is a mixture of all of the different ingredients (raisins, peanuts, chocolate chips, etc.), and a closet of clothes is a mixture of varying clothing types (pants, dresses, skirts, shirts, hats, etc.). All of these answer choices have at least two substances that are mixed to form something new.
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Students in a science class mix together pepper and water. What type of change is made to materials when they are mixed?
Students in a science class mix together pepper and water. What type of change is made to materials when they are mixed?
The students in the class created a new substance when they mixed the water and pepper, but the change is only physical. The pepper can be separated from the water, and there is no permanent change to either substance. There was no change in smell or color, and no new substance was formed as in a chemical change.
The students in the class created a new substance when they mixed the water and pepper, but the change is only physical. The pepper can be separated from the water, and there is no permanent change to either substance. There was no change in smell or color, and no new substance was formed as in a chemical change.
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Edmund wants to separate a mixture back into its original parts. Which answer choice describes an action that separates the components of a mixture?
Edmund wants to separate a mixture back into its original parts. Which answer choice describes an action that separates the components of a mixture?
Separating a mixture is a way to reverse the creating of something new. If sand and rocks were mixed, a mixture was made with the two substances. It can be changed, and the mixture separated if the stones and sand are sifted. The small grains of sand will fall through the sifter leaving the rocks on top and separated.
Separating a mixture is a way to reverse the creating of something new. If sand and rocks were mixed, a mixture was made with the two substances. It can be changed, and the mixture separated if the stones and sand are sifted. The small grains of sand will fall through the sifter leaving the rocks on top and separated.
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You have two round objects that are both roughly the size of a basketball. One of them weighs 50 pounds, and the other weighs 2 pounds. One is made of rubber and one is made of iron. Which object is more likely to be made of iron?
You have two round objects that are both roughly the size of a basketball. One of them weighs 50 pounds, and the other weighs 2 pounds. One is made of rubber and one is made of iron. Which object is more likely to be made of iron?
Iron has a higher density than rubber, meaning that it's weight or mass will be greater even if it's the same size. Standard units are used to measure and describe physical quantities such as weight, time, temperature, and volume.
Iron has a higher density than rubber, meaning that it's weight or mass will be greater even if it's the same size. Standard units are used to measure and describe physical quantities such as weight, time, temperature, and volume.
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You measure the temperature of a substance. The thermometer shows the results. How would you record the temperature of the substance?
You measure the temperature of a substance. The thermometer shows the results. How would you record the temperature of the substance?
The answer is "-30 degrees Fahrenheit"
Standard units are used to measure and describe physical quantities such as weight, time, temperature, and volume. The standard unit for temperature is degrees Fahrenheit. Volume is measured in Liters, weight in pounds, and time is measured in minutes, seconds, or hours.
The answer is "-30 degrees Fahrenheit"
Standard units are used to measure and describe physical quantities such as weight, time, temperature, and volume. The standard unit for temperature is degrees Fahrenheit. Volume is measured in Liters, weight in pounds, and time is measured in minutes, seconds, or hours.
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There are three different liquids layered in the graduated cylinder pictured. If we know that vegetable oil is more dense than water but less dense than honey, which of the liquids is most likely vegetable oil?
There are three different liquids layered in the graduated cylinder pictured. If we know that vegetable oil is more dense than water but less dense than honey, which of the liquids is most likely vegetable oil?
The answer is liquid number 2. Density is a measure of the amount of "stuff" in a given volume. More dense objects sink and less dense objects float.
The answer is liquid number 2. Density is a measure of the amount of "stuff" in a given volume. More dense objects sink and less dense objects float.
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How many millimeters are being measured at the point where the red arrow is shown?
How many millimeters are being measured at the point where the red arrow is shown?
The answer is 45 because there are 10 millimeters in a centimeter and the ruler is measuring 4.5 centimeters.
The answer is 45 because there are 10 millimeters in a centimeter and the ruler is measuring 4.5 centimeters.
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At which number should the volume of this liquid be measured?
At which number should the volume of this liquid be measured?
The answer is "at number 3" because you measure volume at the meniscus.
The answer is "at number 3" because you measure volume at the meniscus.
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Dev and Matt are comparing two samples of matter. They made a table of the properties of each sample.
Which property provides the best evidence that both samples are solids rather than liquids?
Dev and Matt are comparing two samples of matter. They made a table of the properties of each sample.
Which property provides the best evidence that both samples are solids rather than liquids?
This data table provides observations and measurements of two mystery samples. Properties of materials can be used to determine what objects are or the qualities of them. In this case, we are looking for the property that would allude to these samples being solids instead of liquids, and that property is the shape of the samples. Liquids or solids can be measured for mass and volume and described by color, but cannot be characterized by shape. Liquids take the form of the container that they are in, whereas solids maintain a specific shape. These samples are solids because they are a cube and pyramid.
This data table provides observations and measurements of two mystery samples. Properties of materials can be used to determine what objects are or the qualities of them. In this case, we are looking for the property that would allude to these samples being solids instead of liquids, and that property is the shape of the samples. Liquids or solids can be measured for mass and volume and described by color, but cannot be characterized by shape. Liquids take the form of the container that they are in, whereas solids maintain a specific shape. These samples are solids because they are a cube and pyramid.
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Four students in a science class observed and collected data about the properties of a different material. The data table below shows the student observations.
Based on this data chart, which statement correctly describes one of the materials?
Four students in a science class observed and collected data about the properties of a different material. The data table below shows the student observations.
Based on this data chart, which statement correctly describes one of the materials?
This data table lists what each student observed when they were looking at their material. Some of the properties that describe this material can be gathered through observation, while others are through measurement. In this case, what type of matter the student is looking at comes down to the shape. A gas, liquid, or solid can be any color, mass, or volume, so those characteristics are less helpful in identifying what these materials are. Gases have no shape, liquids take the form of the containers they are in, and solids have a definite figure. Mildred and Dolly look at solids because the material is described as a pyramid and a sphere, which are definite shapes. Edmund and Betsy look at materials with no shape, which means they are gas or liquid, so the only answer choice that matches is "Betsy observed a liquid.".
This data table lists what each student observed when they were looking at their material. Some of the properties that describe this material can be gathered through observation, while others are through measurement. In this case, what type of matter the student is looking at comes down to the shape. A gas, liquid, or solid can be any color, mass, or volume, so those characteristics are less helpful in identifying what these materials are. Gases have no shape, liquids take the form of the containers they are in, and solids have a definite figure. Mildred and Dolly look at solids because the material is described as a pyramid and a sphere, which are definite shapes. Edmund and Betsy look at materials with no shape, which means they are gas or liquid, so the only answer choice that matches is "Betsy observed a liquid.".
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