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6th Grade Science 1st Semester

Quiz by Rosanne Volpert

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46 questions
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  • Q1
    Carbon is considered an element, while carbon dioxide is considered a compound. This is because carbon dioxide is –
    useful to human beings.
    a gas at room temperature.
    made of two different elements.
    given off by green plants.
    30s
  • Q2
    Which of the following is the most abundant element in Earth’s crust?
    Oxygen
    Iron
    Calcium
    Potassium
    30s
  • Q3
    A section of the Periodic Table of Elements is provided. What is the chemical symbol for magnesium?
    Question Image
    12
    Mg
    Magnesium
    24.31
    30s
  • Q4
    Compounds are different than elements because compounds are -
    a pure substance; elements are not
    made from the same type of atoms
    not able to be broken down into parts
    combinations of two or more elements
    30s
  • Q5
    Which of the following three elements are most abundant in the plants and animals that make up the biosphere?
    Nitrogen, silicon, and oxygen
    Oxygen, carbon, and hydrogen
    Phosphorous, oxygen, and iron
    Sulfur, oxygen, and hydrogen
    30s
  • Q6
    The oceans are primarily composed of which two elements?
    Calcium and silicon
    Carbon and hydrogen
    Hydrogen and oxygen
    Nitrogen and phosphorus
    30s
  • Q7
    All of the following elements are major components of living things on Earth EXCEPT -
    sulfur
    nitrogen
    oxygen
    carbon
    30s
  • Q8
    The atmosphere of Earth is comprised mostly of oxygen and -
    silicon
    carbon
    nitrogen
    hydrogen
    30s
  • Q9
    Bubbles and fizzing can be seen instantly when baking soda is mixed with vinegar. The bubbles are evidence of which of the following?
    A precipitate is formed when baking soda and vinegar are mixed.
    Baking soda dissolves in vinegar when they are mixed.
    A gas is formed when baking soda and vinegar are mixed.
    Vinegar turns into alcohol when it is mixed with baking soda.
    30s
  • Q10
    When two substances are mixed, they might form a new substance. Which of the following would indicate that a new substance has been formed?
    The temperature of the mixture decreases
    The mass of the mixture increases
    The volume of the mixture increases
    One of the substances dissolves
    30s
  • Q11
    A student mixes two clear liquids together. After a few minutes, a white powder can be seen settling on the bottom of the test tube. Which of the following is a conclusion that the student can draw based on these observations? The two clear liquids –
    have been stored too long and are no longer good.
    have combined to produce a new substance.
    are toxic and should be handled with extreme caution.
    were pure substances before they were mixed.
    30s
  • Q12
    Which of the following characteristics is shared by all chemical reactions?
    Show a color change
    Release heat energy
    Form new substances
    Produce a precipitate
    30s
  • Q13
    All of the following are evidence of a chemical change EXCEPT –
    precipitate forms.
    change in state of matter.
    formation of a gas.
    color change.
    30s
  • Q14
    The table shows the physical properties of four elements. Which element is classified as a metalloid?
    Question Image
    Polonium
    Titanium
    Selenium
    Potassium
    30s
  • Q15
    The table shows the classification and physical state of four elements. Which element most likely has a shiny luster?
    Question Image
    Hydrogen
    Cobalt
    Arsenic
    Carbon
    30s

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