
6th Grade Review Part 1
Quiz by Kris Carroll
Track each student's skills and progress in your Mastery dashboards
Buffelgrass is an invasive species of grass from Africa that outcompetes native Texas grasses for space and water. Which long-term change to a Texas grassland would most likely occur due to the introduction of buffelgrass?
Farmers can best reduce negative effects on the water quality of nearby streams and lakes by planting crops that —
A Texas Gulf Coast energy pyramid is shown with representative organisms at each trophic level.
Which statement best describes the flow of energy through this pyramid?

What function do both cell membranes and cell walls perform?
Which of these observations is an indication that a chemical reaction has occurred?
Which statement best explains why the sun appears brighter to people on Earth than any other star?
The diagram shows how a cylinder in a car engine causes the car to move.
Which description of the energy conversions in this process is correct?

The model shows Earth in four different positions in its orbit around the sun.
Which statement correctly explains which position of Earth represents summer in the United States?

The speed of an object over time is shown in the graph.
Which table describes the object’s motion?

Humans depend upon food that comes from the ocean. Some human activities negatively impact these food supplies.
Which statement provides the best evidence that human activities contribute to this impact?
Sea anemones and clown fish live together in the ocean. Which statement best describes one way sea anemones depend on clown fish for an abiotic factor in an ecosystem?
Two oceanic plates are shown in the image.
Which type of boundary results in the spreading of the oceanic ridge?

Students performed a lab investigation on chemical reactions. The students put on goggles and plastic gloves and then followed these steps.
Which observation would indicate that a chemical reaction occurred?

A Texas Gulf Coast food web is shown.
According to this food web, which organisms would the bobcat and diamondback rattlesnake compete for if the mouse population and swamp rabbit population decreased?

The chart shows properties of four elements.
Based on these properties, which element is most likely a nonmetal?
