Earth Science Benchmark review

For the hypothesis "If students play Quizizz, then their grades on the test will improve", what is the dependent variable?

• How many times the students play Quizizz

• The student grades on the test

• The classroom that the students play Quizzizz in

• The time of day that students play Quizzizz

For the hypothesis "If students play Quizizz, then their grades on the test will improve", what is the independent variable?

• Students preparing for the test by playing Quizizz

• The student grades on the test

• The classroom that the students play Quizzizz in

• The time of day that students play Quizzizz

Students plan to use several rain gauges to compare average monthly rainfall on Virginia's Coastal Plain and Piedmont regions. Which of these variables should be manipulated?

• Height of the gauge

• Brand of the gauge

• Size of the gauge

• Location of the gauge

Looking at the table shown in the diagram, what would be the dependent variable for this experiment?

• Amount of Water (mL)

• Temperature of Sugar (C)

• Temperature of Water (C)

• Amount of Sugar Dissolved (g)

Looking at the table shown in the diagram, what would be the independent variable for this experiment?

• Amount of Water (mL)

• Temperature of Sugar (C)

• Temperature of Water (C)

• Amount of Sugar Dissolved (g)

Which point of data in the graph is probably invalid?

• 1

• 2

• 3

• 4

A student is investigating the effect of plants on indoor air quality and states, "If plants are added to an indoor environment, then the air quality will improve". This statement is an example of -

• A theory

• A prediction

• An observation

• A hypothesis

The big bang is the ______ in time when the universe started to expand out of an extremely hot, dense state.

• Year

• Season

• Moment

• Day

Which of the following is a rocky object that is burned up as it enters our atmosphere and is commonly known as a "shooting star"?

• Comets

• Asteroids

• Meteorites

• Meteors

• Meteoroids

Answer explanation

Meteors are the bright streaks of light produced when meteoroids burn up upon entering Earth's atmosphere, commonly referred to as "shooting stars." Comets and asteroids are different types of celestial objects.

Which of the following best represents the alignment of the Sun, Earth and Moon during a solar eclipse?

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