5D Formative Assessment #3 Science Matters 1

Formative Assessment #3

Concept(s) Assessed Matter may change when it is mixed with other substances.

This physical change can result in a mixture and/or a solution. Mixtures are the over arching category, and solutions are specialized mixtures. A solution is evenly mixed.

Time 30 minutes Materials Individual

Prompt Advance Preparation 1. Duplicate prompt for each student Procedure: 1. Tell students they will have an opportunity to share what they understand

about mixtures and solutions. 2. Distribute the prompt to each student and ask him/her to do his/her best

work.

 

5D Formative Assessment #3 Science Matters 1

                                     Name:                        PROMPT  

Directions:  Label  each  picture  with  mixture  or  solution  and  why  it  is  a  mixture  or  solution.        

Picture   Mixture  or  Solution   Why?  1.    

   

   

2.      

 

   

3.  

 

   

4.  

 

   

5.  

 

   

 

 

5D Formative Assessment #3 Science Matters 1

       How  did  you  solve  the  Ransom  Note  Mystery?  Describe  your  method  and  how  you  used  the  properties  of  the  ink  to  solve  the  mystery.                                                                                                                                                                                                          

 

5D Formative Assessment #3 Science Matters 1

Name:                  Formative  Assessment  #3  

Expected  Student  Responses  for  a  High  Level  Response  Mixtures/Solutions/Ransom  Note  

Directions:    Label  each  picture  with  mixture  or  solution  and  why  it  is  a  mixture  or  solution.        

Picture   Mixture  or  Solution   Why?  1.    

   

Mixture   There  are  many  different  types  of  shapes  of  cereal  not  evenly  distributed,  so  the  cereal  is  a  mixture.  

2.      

 

Mixture   The  marbles  are  mixed  together  but  not  evenly  distributed,  so  it  is  mixture.  

3.  

 

Solution   The  Kool-­aid  powder  is  dissolved  in  the  water  so  it  is  a  solution.  

4.  

 

Mixture   The  salad  ingredients  are  not  evenly  mixed,  so  it  is  a  mixture.  

5.  

 

Solution   The  tea  is  dissolved  in  water,  so  it  is  a  solution.  

 

5D Formative Assessment #3 Science Matters 1

   

 How  did  you  solve  the  Ransom  Note  Mystery?    Describe  your  method  and  how  you  used  the  properties  of  the  ink  to  solve  the  mystery.      From  the  food  dye  investigation  we  learned  that  we  could  separate  the  colors  that  make  a  dye.  Our  team  thought  that  the  same  type  of  separation  might  happen  with  the  ink  from  the  pens.  To  solve  the  Ransom  Note  Mystery  our  team  had  to  test  each  of  the  5  pens  using  paper  chromatography.  Chromatography  allows  us  to  separate  the  substances  that  make  a  mixture  by  having  a  solvent  pull  them  apart.  We  also  used  chromatography  to  test  the  pen  used  by  the  thief.  We  observed  the  ink  separation  from  each  of  the  pens.  When  we  compared  the  ink  from  the  thief’s  pen  and  the  other  5  pens  we  were  able  to  determine  who  was  the  thief.