S5P1a Mixtures Review

Natasha is cooking pasta. She puts dry pasta in boiling water and waits eight minutes for the pasta to cook. How can she best separate the pasta from the water when the pasta is done?

• heat the mixture until all of the water boils off

• stir the mixture with a spoon to collect the pasta

  
  

• cool the mixture until all the pasta floats to the top

  
  

• pour the mixture through a sieve to catch the pasta

  
  

Joshua collects toy cars. Some of his cars are metal and some are plastic. The best way for Joshua to separate the cars without using his hands would be by

• using heat.

• using water.

  
  

• using a sieve.

  
  

• using a magnet.

  
  

The picture shows a mixture of water, sugar, and sand, which has settled in a glass beaker after it was stirred for a few minutes. What method of separating the mixture would remove the sand, but still leave the sugar and water in the beaker?

• freezing the mixture

  
  

• heating the mixture

  
  

• using a magnet

  
  

• using a filter

  
  

Jordan helps his dad make salsa. Jordan's dad cuts up tomatoes, a hot pepper, and an onion. Jordan combines all the ingredients together, adds hot sauce, and stirs. The picture shows the salsa they made.  Which best describes what Jordan and his dad made?

• Jordan and his dad made a mixture, which is a physical change.

  
  

• Jordan and his dad made a mixture, which is a chemical change.

  
  

• Jordan and his dad made a new substance, which is a physical change.

  
  

• Jordan and his dad made a new substance, which is a chemical change.

  
  

Tags

NGSS.MS-PS1-2

The student creates a mixture, as shown. The student wants to separate the materials to demonstrate that the mixture experienced a physical change. Which three methods should the student use?

• melt the screws

  
  

• add water to dissolve the sand

• hand pick out the wood shavings

  
  

• use a strainer to remove the sand

  
  

• use a magnet to attract the screws

  
  

Tags

NGSS.MS-PS1-2

How can the student deform one material to demonstrate a physical change

• freeze water

• burn wood shavings

  
  

• melt mini marshmallows

  
  

• unfold a metal paper clip

  
  

The student combines chocolate chips and mini marshmallows in a bowl. The student wants to separate the mixture to demonstrate that it experienced a physical change. Which physical property is least likely to be used to separate the mixture?

• size

• state

• color

  
  

• shape

  
  

The picture shows a bowl of candies. Which physical property of the candy can be used to separate the types of candy in the bowl?

• size

• color

• shape

• texture

Tags

NGSS.5-PS1-3