7th Grade Chemistry Trivia Quiz On Mixtures!

15 Questions | Total Attempts: 13219

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7th Grade Chemistry Trivia Quiz On Mixtures! - Quiz

Check out this 7th-grade Chemistry trivia quiz based on mixtures and test your knowledge regarding mixtures and their types. A mixture when it comes to chemistry is a combination of two or more substances. We have covered the results of such and how to separate them. The quiz below is designed to help seventh-graders test out what they know about mixtures. Why don’t you take it up and see just how much you understood the topic? All the best!


Questions and Answers
  • 1. 
    A mixture is ...
    • A. 

      A pure substancae

    • B. 

      Two or more substances mixed together

    • C. 

      Both A and B

    • D. 

      None of the above

  • 2. 
    Mixtures can be classified into 2 types, homogeneous and heterogenous.  They are different because
    • A. 

      Heterogenous has 2 substances. Homogenous has 3 or more substances

    • B. 

      Homogeneous looks the same throughout, with heterogenous you can see the different parts

    • C. 

      Heterogeneous looks the same throughout, with homogeneous you can see the different parts

    • D. 

      They are the same, just different names

  • 3. 
    Another name for homogeneous is
    • A. 

      Solution

    • B. 

      Solvent

    • C. 

      Solute

    • D. 

      Saline

  • 4. 
    To separate a mixture of sand and iron it is easiest to use
    • A. 

      Floating

    • B. 

      Picking them out

    • C. 

      A magnet

    • D. 

      Filter with filter paper

  • 5. 
    Solutions are made of at least 2 parts called
    • A. 

      Solution and solute

    • B. 

      Solute and solvent

    • C. 

      Solvent and saline

    • D. 

      Solution and solvent

  • 6. 
    I'm making soup for lunch.  Which would be faster, rock salt or regular table salt?
    • A. 

      Rock salt

    • B. 

      Table salt

    • C. 

      Both of these

    • D. 

      None of these

  • 7. 
    What else can I do to make the salt in my soup dissolve faster?
    • A. 

      Add a lot of table salt

    • B. 

      Stir

    • C. 

      Add heat

    • D. 

      Let it sit

  • 8. 
    Which of the following are homogeneous mixtures?
    • A. 

      Water

    • B. 

      Rocky road ice cream

    • C. 

      Shampoo

    • D. 

      Oatmeal

  • 9. 
    Which of the following are mechanical mixtures?
    • A. 

      Chocolate bar with almonds

    • B. 

      Chocolate milk

    • C. 

      Flat pop

    • D. 

      Orange juice with pulp

  • 10. 
    What happens when you try to make a solution of salt and oil?
    • A. 

      It becomes a homogeneous solution, the salt dissolves into the oil

    • B. 

      It becomes a heterogeneous mixture, the salt doesn't dissovle into the oil

    • C. 

      The oil can only dissolve a little bit of salt

    • D. 

      All of these

  • 11. 
    To separate a solution of black pepper and salt...
    • A. 

      Add water to collect the pepper

    • B. 

      Pick out the pepper from salt by hand

    • C. 

      Add water, filter out the pepper, boil off the water to get salt

    • D. 

      Add water, filter out the salt, boil off the water to get the pepper

  • 12. 
    Another name for homogeneous is
    • A. 

      Solution

    • B. 

      Solute

    • C. 

      Solvent

    • D. 

      Saline

  • 13. 
    Solutions are made of at least 2 parts called
    • A. 

      Solute and solvent

    • B. 

      Solvent and saline

    • C. 

      Solution and solute

    • D. 

      Solution and solvent

  • 14. 
    How is mass different than weight?
    • A. 

      Mass and weight are not any different. They are exactly the same.

    • B. 

      Mass is the amount of matter and weight is the amount of matter plus electricity.

    • C. 

      Mass is the amount of matter and weight is the amount of matter plus energy.

    • D. 

      Mass is the amount of matter and weight is the amount of matter plus gravity.

  • 15. 
    You are given a mystery object in science class. Your teacher asks you to determine if your object is more or less dense than water. You place the object in the water and it sinks. What statement would best describe this situation?
    • A. 

      The mystery substance is denser than water.

    • B. 

      Water is denser than the mystery substance.

    • C. 

      They both have the same mass.

    • D. 

      The mystery substance must be hollow.

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