Mixtures and Solutions Review

1. The table shows observations from mixing Playdough and water.

2. What can you conclude from these observations? Select TWO correct answers.

• • Matter was conserved when the playdough and water were combined

• • The playdough would have dissolved if it had been stirred for a longer period of time

• • Playdough  and water made a mixture when combined

• • Playdough  and water made a solution when combined

Tags

NGSS.MS-PS1-2

2. When sugar is stirred into water, it forms a solution. How could you separate the sugar from the water?

• 1. Sieve (strainer)

• 1. Evaporation

• 1. Magnetism

• 1. Tweezers 

3. Trail mix is formed by adding peanuts, raisins and M&M’s. The trail mix is an example of a 

• 1. Solution, because the ingredients can be easily separated

• 1. Solution, because the ingredients cannot be easily separated

• 1. Mixture, because the ingredients can be easily separated

• 1. Mixture, because the ingredients cannot be easily separated

4. How do you know when a solution is formed? Choose ALL that apply.

• • When a substance seems to disappear in another

• • When a liquid spreads out evenly into another liquid

• • When you can still see the individual properties of each substance

• • When one substance dissolves in another

Tags

NGSS.MS-PS1-2

5. When the 2 substances were mixed together, matter was conserved.

• 1. True

• 1. False

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

6. A student added 105g of vegetable oil to 234g of syrup. What is the mass of the mixture?

• 339g

• 129g

• 309g

• 121g

Tags

NGSS.MS-PS1-5

7. Which answer choice has the categories correctly labeled.

• 
• 
• 
• 

8. The picture shows sugar that was put into a cup of water. What needs to be done for the sugar to dissolve?

• 1. It will not dissolve

• 1. The sugar needs to be stirred in order to dissolve

• 1. The cup needs ice to help it dissolve

Tags

NGSS.MS-PS1-2

9. Coffee and creamer were added together in a cup. The picture below shows what the 2 substances looked like before combining them and then after.

Why can the creamer no longer be seen after it is added to the coffee?

• 1. It is a solution, so there was less creamer after it was mixed

• 1. It is a solution, so the creamer was spread out evenly in the coffee

• 1. It is a mixture, so the substances are easily separated

• 1. It is a mixture, so you can still see both the coffee and the creamer