2005 Released GR8 Science SOL

Venus, the moon, Mars, and the sun are all visible in our sky. All but one of these reflect light from another source. Which of the following produces its own light?

• Venus

• The moon

• Mars

• The sun

According to the graph, which air pollutant decreased the most from 1970 to 1991?

• Carbon monoxide

• Sulfur oxides

• particulates

• Lead

Which of the following could best be used to demonstrate energy being transformed from electricity to heat?

• a magnifying glass

• a triple beam balance

• a toaster

• a gas oven

Which of these best describes a relationship shown by this African energy pyramid?

• the lion is a predator of the giraffes

• the lion is the prey of the giraffes

• giraffes are the prey of the trees

• giraffes are predators of the lion

Insulation materials reduce heat loss because they —

• are poor conductors

• block out the sun

• reduce evaporation

• promote convection

Which of the following classification groups contains organisms that have the most characteristics in common?

• kingdom

• phylum

• class

• species

In this diagram of a single-celled organism, which organelle functions as a place to store extra water?

• cell membrane

• vacuole

• cytoplasm

• nucleus

Which process is a physical change?

• rusting iron

• burning coal

• tarnishing silver

• melting ice

Which concept is best illustrated by this diagram?

• The exchange of CO2 and O2 in an ecosystem

• the effect of limiting factors in a biome

• Cycling of nutrients in a community

• Environmental pressures on a population

Water stored behind a dam is an example of what type of energy?

• kinetic

• potential

• solar

• chemical