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Quiz on Identifying Variables

Quiz by MARIA ROSAIDE P. RAMOS

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10 questions
Show answers
  • Q1
    Identify the independent variable in this research question: At which concentration of polyacrylamide gel do blood proteins separate the best when performing gel electrophoresis?
    Blood proteins
    concentration of polyacrylamide gel
    Separation of blood proteins
    Gel electrophoresis
    30s
  • Q2
    Identify the dependent variable in this research question: What effect does temperature have on the rate of sugar (sucrose) crystal formation in saturated sugar solutions?
    rate of sugar (sucrose) crystal formation
    Sugar crystal
    saturated sugar solutions
    temperature
    30s
  • Q3
    Identify the independent variable in this research question: What is the relationship of the number of turns of 20-gauge copper wire to magnetic field strength in a simple electromagnet?
    number of turns of 20-gauge copper wire
    Copper wire
    Simple electromagnet
    magnetic field strength
    30s
  • Q4
    Identify the condition in this research question: Which metal serves as the best electrode for producing hydrogen in an electrolysis device at standard temperature and pressure?
    Electrolysis device
    metal
    Standard temperature and pressure
    best electrode for producing hydrogen
    30s
  • Q5
    Identify the independent variable in this research question: What is the effect of the type of organic compost to the productivity rate of Solanum lycopersicum in a hydroponic set-up?
    productivity rate of Solanum lycopersicum
    organic compost
    hydroponic set-up?
    Solanum lycopersicum
    30s
  • Q6
    On the given situation, identify the subject. You water three sunflower plants with salt water. Each plant receives a different concentration of salt solutions. A fourth plant receives pure water. After a two- week period, the height is measured.
    two- week period
    sunflower plants
    concentration of salt solutions
    height of plant
    30s
  • Q7
    On the given situation, identify the dependent variable. Three redwood trees are kept at different humidity levels inside a greenhouse for 12 weeks. One tree is left outside in normal conditions. Height of the tree is measured once a week.
    Three redwood trees
    different humidity levels
    12 weeks.
    Height of the tree
    30s
  • Q8
    On the given situation, identify the independent variable. One tank of gold fish is fed the normal amount of food once a day, a second tank is fed twice a day, and a third tank four times a day during a six week study. The fish’s weight is recorded daily.
    fish’s weight
    six week study
    gold fish
    number of times the fish is fed
    30s
  • Q9
    Identify the subject in this research question: How does the photosynthetic rate of pondweed (Elodea canadensis) vary with light intensity at 30°C?
    pondweed (Elodea canadensis)
    photosynthetic rate
    30°C
    light intensity
    30s
  • Q10
    Identify the condition in this research question: Which antibiotic is most effective in killing Staphylococcus growth in agar plates kept at 37°C?
    effective in killing Staphylococcus growth
    antibiotic
    Staphylococcus
    in agar plates kept at 37°C
    30s

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