Grain of Salt
mix it real good
Find the Solution
Mixtures & Solutions
The Process
100
A student makes four mixtures and records his observations in a table.
Based onthe student's observations, what conclusions can be made about the mixtures?
A. The salt is soluble in water.
B. All of the mixtures are solutions.
C. None of the mixtures are solutions.
D. The pepper is soluble in water.
What is the salt is soluble in water?
100
Which statement best describes a salad?
A. A salad is a solution because it is made of two or more substances that are not easily separated.
B. A salad is a solution because it is made of two or more substances that can be easily separated.
C. A salad is a mixture because it ismade of two or more substances that can be easily separated.
D. A salad is a mixture because it is made of two or more substances that are not easily separated.
What is a salad is a mixture because it ismade of two or more substances that can be easily separated?
100
A student selects two identical glasses, labels them P and Q, and fills each with 50 mL of boiling water. She adds 5 g of sugar to glass P and 5 g of sand to glass Q. After 5 minutes, the student observes the contents in glasses P and Q.
What does the student likely observe?
A. Both sugar and sand dissolve in water completely.
B. Sugar settles at the bottom of glass P, and sand dissolves completely in glass Q.
C. Both sugar and sand collect at the bottom of the glasses.
D. Sugar dissolves completley in glass P, and sand settles at the bottom of glass Q.
What is sugar dissolves completley in glass P, and sand settles at the bottom of glass Q?
100
Emily is making her favorite juice drink to go with her snack. She follows the directions on the back of the juice drink package.
Which ingredient is the solvent?
A. water
B. juice drink mix
C. sugar
D. glass or plastic pitcher
What is water?
100
Which will NOT make a large block of sugar dissolve quicker in water?
A. cooling the water before adding the sugar
B. stirring the sugar and water
C. breaking the sugar into smaller pieces
D. heating the water before adding the sugar
What is cooling the water before adding the sugar?
200
A student passes a substance through a fine sieve placed over a bowl, as shown in the setup.
The student observes that several solid particles are collected on the sieve, and a ;iquid substance passes through the sieve into the bowl. How should the original substance be classified?
A. element
B. compound
C. misxture
D. solution
What is a mixture?
200
The image shows how a magnet interacts with sand and iron filings, as well as how the magnet interacts when sand and iron filings are mixed.
Which statement is true about mixtures based on the image?
A. Substances in mixtures retain their properties.
B. Substances in mixtures combine to form a new substances.
C. Substances in mixtures cannot be separated.
D. Substances in mixtures are always present in fixed amounts.
What are substances in mixtures retain their properties?
200
Lemonade is made by dissolving sugar and lemon juice in water. Water is made up of atoms of hydrogen and oxygen.
Which statement is correct based on the given information?
A. Lemonade is a mixture, and water is an element.
B. Both lemonade and water are mixtures.
C. Lemonade is a mixture, and water is a compound.
D. Both lemonade and water are compounds.
What is lemonade is a mixture, and water is a compound?
200
A student combines water and sugar together and observes that all of the sugar does not dissolve. Which statement explains the student's observation?
A. There is too much solvent.
B. There is too little solute.
C. The concentration of the water is too high for the sugar to be dissolved.
D. The concentration of the sugar is too high to be dissolved.
What is the concentration of the sugar is too high to be dissolved?
200
Lora is using different methods for making sugar dissolve faster in water. She fills 4 beakers with 200 mL of water and adds 50 g of sugar to each. Lora then follows the procedures listed in the “Activity Performed” column of her table.
In which beaker will sugar dissolve the fastest?
A. Beaker 4
B. Beaker 2
C. Beaker 1
D. Beaker 3
What is beaker 1?
300
Which statement best describes the property of a salt solution?
A. salt and water can ve separated using filtration
B. salt solutions have the same physical properties as water
C. salt particles settle at the top of the container
D. salt properties completely dissolve in water
What are salt properties completely dissolve in water?
300
A student makes a solution and a mixture to study their properties. The mixture contains 20 g of sand and 30 g of gravel. The solution contains 20 g of salt dissolved in 100 g of water. The student passes the mixture through a sieve and observes that sand separates from the gravel. The student then places the solution on a burner for an hour and observes that all of the water evaporates, and salt remains in the container.
What can the student conclude about mixtures and solutions from the activity?
A. New substances are formed when two or more substances are mixed to form solutions and mixtures.
B. The substances that make up mixtures and solutions cannot be recovered after separation.
C. The substances that make up mixtures and solutions can be separated from each other.
D. Properties of the substances change during the formations of solutions but not the formation of mixtures.
What are the substances that make up mixtures and solutions cannot be recovered after separation?
300
A student fills 4 different beakers with 100 mL of water at 4 different temperatures. She dissolves 5 g of sugar in the water in each beaker. She records the time taken to dissolve at each temperature. The table and line graph show the data recorded.
Which data point is plotted incorrectly on the graph?
A. temperature = 25°C; time = 9 seconds
B. temperature = 30°C; time = 7 seconds
C. temperature = 35°C; time = 5 seconds
D. temperature = 40°C; time = 4 seconds
What is temperature = 30°C; time = 7 seconds?
300
A child adds 3 packets of drink powder, 170 g of sugar, and 4 L of water to a plastic container. The child stirs the contents of the container, and the drink powder and sugar dissolve in the water.
What conclusion can be drawn?
A. The concentration of the solute to the solvent is too high, and a solution is formed.
B. The concentration of the solute to the solvent is too low, and a mixture is formed.
C. The concentration of the solute to the solvent is appropriate, and a mixture is formed.
D. The concentration of the solute to the solvent is appropriate, and a solution is formed.
What is the concentration of the solute to the solvent is appropriate, and a solution is formed?
300
Which method should a student use to separate iron filings from a bowl of cereal?
A. magnetism
B. filtration
C. evaporation
D. flotation
What is magnetism?
400
A chef mixes oil and water in a bowl to make sald dressing. What will most likely be the outcome?
A. The oil and water will mix together to create a new liquid mixture.
B. The oil and water will remain separate in the bowl and create a mixture.
C. The oil will dissolve in the water and create a solution.
D. The water will dissolve in the oil and create a solution.
What is the oil and water will remain separate in the bowl and create a mixture?
400
A cereal is made of puffed wheat and small marshmallows. Which term best describes this cereal?
A. element
B. mixture
C. compound
D. solution
What is a mixture?
400
A student added 5 mg of salt to 200 mL of water. She later added 15 mg of sugar to the same solution.
How did adding sugar change the solution?
A. It made the solution less concentrated.
B. It made the solution more concentrated.
C. It reduced the amount of solvent present in the solution.
D. It increased the amount of solvent present in the solution.
What is it made the solution more concentrated?
400
A student makes different concentrations of saltwater solutions and records the information in a table.
Which solution has the highest concentration of salt?
A. Solution 3
B. Solution 4
C. Solution 2
D. Solution 1
What is solution 3?
400
A student has a test tube containing a mixture of water, salt, and sand.
Which process should the student follow to separate the contents of the mixture?
A. floatation followed by sifting
B. filtration followed by evaporation
C. sifting followed by magnetic attraction
D. evaporation followed by chromatography
What is filtration followed by evaporation?
500
A student combines sugar and hot water in a beaker. Which statement accurately describes what occurs when sugar and hot water are combined?
A. The sugar changes the water into a new substance to create a solution.
B. The water changes the sugar into a new substance to create a solution.
C. The sugar dissolves in the water to create a solution.
D. The water dissolves in the sugar to create a solution.
What is the sugar dissolves in the water to create a solution?
500
Which is the best description of a mixture?
A. Gold is a mixture because it is one type of substance that can be melted.
B. Pasta salad is a mixture because it is made of different substances that can be easily separated.
C. A bowl of pudding is a mixture because it is made of different substances that can be frozen.
D. A glass of lemonade is a mixture because it is made mostly of water and is not easily separated.
What is pasta salad is a mixture because it is made of different substances that can be easily separated?
500
A student adds two teaspoons of sugar to two glasses, each containing the same amounts of water.
How will the student then make the solution in Glass P less concentrated than the solution in Glass Q?
A. Add more water to Glass P.
B. Add the same amount of water to both Glasses P and Q.
C. Remove some water from Glass P.
D. Remove the same amount water from both Glasses P and Q.
What is add more water to Glass P?
500
Which sugar and water combination will dissolve the fastest?
What is solution B?
500
A mixture contains three different substances mixed in water. Jessica uses the methods shown in the flow chart to separate the three substances. She predicts that sugar crystals are one of the three unknown substances in the mixture.
Which statement explains why Jessica’s methods are able to determine if she is correct?
A. Since all three substances were mixed in water, none of the substances should dissolve in water.
B. The process of separation involved filtration, which can separate sugar and water.
C. The process of separation involved evaporation, which can separate sugar and water.
D. Since all three substances were mixed in water, then all the substances should dissolve in water.
What is the process of separation involved evaporation, which can separate sugar and water?