5th grade Mixtures and Solutions Review

A student adds 2 spoons of solid to 100 mL of water. The solution is clear, with nothing on the bottom of the cup. One spoon of the solid has a mass of 5 g.

What is the mass of the solution?

• 105 g

• 110 g

• 5 g

• 10 g

Tags

NGSS.MS-PS1-5

A student adds 2 spoons of solid to 100 mL of water. The solution is clear, with nothing on the bottom of the cup. One spoon of the solid has a mass of 5 g.

After the water evaporates, what is the mass of the solid remaining in the cup?

• 105 g

• 110 g

• 5 g

• 10 g

Tags

NGSS.MS-PS1-5

A student makes two citric acid solutions, P and Q. He puts 60 mL of water in each cup. He puts 5 spoons of citric acid in cup P and 7 spoons in cup Q. Both solutions are saturated. Which picture below shows what the balance would look like if the student filtered the solutions, then put 50 mL of each in the cups on the balance?

• 
• 
• 
• You cannot tell from the information given.

Tags

NGSS.MS-PS1-2

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Three solutions are made with the same solid material (see chart below) and the same amount of water.

Solution A = 8 g

Solution B = 10 g

Solution C = 12 g

Which solution is the least concentrated?

Which solution is the most concentrated?

​

• Least is Solution C

  Most is Solution A

• Least is Solution B

  Most is Solution C

• Least is Solution A

  Most is Solution C

• Least is Solution A

  Most is Solution B

A student makes a flourless chocolate cake. He measures out these ingredients.

110 g of chocolate(C)

95 g of butter(B)

180 g sugar (S)

55 g (2) eggs (E)

Which pair of graphs best shows the relationship between the mass of the ingredients and the mass of the mixture before baking?



• A

• B

• C

• D

Tags

NGSS.MS-PS1-2

A student mixes a colorless liquid and a blue solid. When all of the solid dissolves, the solution is blue. Ten minutes later, a solid settles on the bottom of the cup.

What is the best evidence that a chemical reaction occurred?

• The solution turned blue.

• The blue solid dissolved.

• You could see through the liquid.

• The solid on the bottom of the cup.

Tags

NGSS.MS-PS1-2

Solution J and Solution K are both made with water and the same solid. You measure equal amounts into two separate cups and weigh each solution.

Solution J = 110 g

Solution K = 115 g

Which solution is more concentrated?

Which solution is more dense?

• Solution J is more concentrated

  Solution K is more dense

• Solution K is more concentrated

  Solution J is more dense

• Solution J is more concentrated

  Solution J is more dense

• Solution K is more concentrated

  Solution K is more dense

A cake is a mixture of eggs, flour, butter, and eggs. The ingredients are mixed together and put into an oven. Which of the following describes the cake?

• the component of a mixture

• the product of a reaction

• the solute of a solution

• the reactant in a chemical reaction

The two cups on the balance each contain 50 mL of different solutions made with the same materials. (Notice that the balance is not level.)

Cup A contains a solution made by mixing 2 spoons of solid in 100 mL of water.

Which solution listed below must be in Cup B?

• 4 spoons of solid, 200 mL of water

• 8 spoons of solid, 400 mL of water

• 3 spoons of solid, 600 mL of water

• 6 spoons of solid, 300 mL of water

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is a chemical reaction?

• Citric acid dissolves in water.

• Ingredients for a cake are mixed together.

• Soft-drink powder mixes with water, and the water turns red.

• Bending a glow light stick to mix materials and produce heat and light.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5