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8th Grade Fall Final Science

Quiz by 7-12 Sped

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29 questions
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  • Q1
    Which of the following is true of the mass of an atom?
    an atom's mass is equal to the atomic number
    an atom's mass is a combination of the mass of neutrons and electrons
    an atom's mass is a combination of the mass of protons and neutrons
    30s
  • Q2
    How many neutrons are found in a neutral atom of selenium?
    79
    45
    34
    30s
  • Q3
    Which of the following is considered a chemical property?
    flammability
    melting temperature
    color
    30s
  • Q4
    What is the mass number of osmium?
    76
    114
    190
    30s
  • Q5
    What is the atomic number of Hafnium?
    72
    250
    106
    30s
  • Q6
    Which of the following statements mentions a chemical property?
    I really hope the sun comes out soon to melt all of the ice on the ground.
    I really like that shade of blue.
    I shouldn't store sodium hydroxide near acids because it could violently react.
    30s
  • Q7
    Which of the following best represents the difference between mass and weight?
    mass is the amount of a substance in a given volume
    mass is the amount of matter in a substance whereas weight is the force of gravity on mass
    mass is the amount of volume in a given amount of a substance
    30s
  • Q8
    Which of the following represents a molecule?
    sugar
    electron
    iron
    30s
  • Q9
    What is the density of a substance if it has a mass of 16.23 g and a volume of 23.86 mL?
    0.680 g/mL
    1.47 g/mL
    40.1 g/mL
    30s
  • Q10
    Which subatomic particle is found outside of the nucleus of the atom?
    electron
    neutron
    argon
    30s
  • Q11
    How many protons are there in an atom of Radon?
    308
    136
    86
    30s
  • Q12
    What is the mass of quartz if it has a density of 2.65 g/cm3 and a volume of 129.4 cm3?
    0.0205 g
    342.91 g
    132.05 g
    30s
  • Q13
    Which of the following is considered a compound?
    water
    helium
    oxygen
    30s
  • Q14
    Which of the following could be considered a physical property?
    color
    toxicity
    reactivity to acids
    30s
  • Q15
    How many neutrons are found in a neutral atom of gold?
    79
    197
    118
    30s

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