Mixtures and Solutions Task Cards

1. Which tool or technique would best separate a mixture of gravel and sand?

• A. Sieve
• B. Paper filter
• C. Magnet
• D. Evaporation

2. Which of the images shows a solution?

• A. Cereal
• B. Pizza
• C. Oil and water
• D. Lemonade

Tags

NGSS.MS-PS1-2

3. A mixture of pencils and pens can be separated easily because both pencils and pens—

• A. are magnetic.
• B. cannot pass through a sieve.
• C. are solid.
• D. can be evaporated.

5. A student dissolved powdered drink mix in cold water to form a sweet, purple, grape-flavored solution. To make the solution’s taste less strong, the student added more water to the solution. How did the physical properties of the solution change when more water was added?

• A. The purple color of the solution was lighter.
• B. The taste of the solution was sweeter.
• C, The solution melted.
• D. The solution’s volume decreased.

6. Four mixtures are listed below. Which of the mixtures can be separated using a kitchen strainer?

• A. Mixture 3 only
• B. Mixture 2 only
• C. Mixtures 1 and 4 only
• D. Mixtures 1, 2, and 4 only

7. A saltwater solution can be separated easily because—

• A. salt evaporates when boiled, leaving behind water.
• B. salt can be removed from the solution using tweezers.
• C. water evaporates when boiled, leaving behind salt.
• D. water passes through a sieve, leaving behind the salt.

8. The table lists the ingredients of four mixtures. Which mixture cannot be separated by pouring the mixture through a paper filter?

• A. Mixture 1
• B. Mixture 2
• C. Mixture 3
• D. Mixture 4

Tags

NGSS.MS-PS1-2

9. A student mixed together 10 grams of salt, 10 grams of sand, and 100 milliliters of water in a beaker. After stirring, the student allowed the mixture to sit for two weeks by a sunny window. What did the student most likely observe after 2 weeks?

• A. The beaker was empty.
• B. Only 10 grams of salt remain in the beaker.
• C. Only 10 grams of sand remain in the beaker.
• D. Only 20 grams of mixed sand and salt remain in the beaker.

11. Which of the methods would allow you to quickly separate a mixture of steel paper clips and plastic paper clips?

• A. Methods 1 and 4 only
• B. Method 4 only
• C. Methods 1, 3, and 4 only
• D. Method 2 only

13. A student mixed together an orange solution containing water, orange powdered drink mix, and sugar, as shown in the top image. Then the student dissolved more orange powdered drink mix into the solution. How did the solution most likely appear after more powdered drink mix was added?

• A
• B
• C
• D

Tags

NGSS.MS-PS1-2