11/11 Monday Night HW

In which way are evaporation and condensation similar?

• both cause decreases in air temperature

• both cause increases in air temperature

• both are caused by the warming of the atmosphere

• both are caused by changes in heat energy

In which way are melting and evaporation similar?

• both require the addition of heat energy

• both require the removal of heat energy

• both cause the molecules and atoms to slow down

• both cause the molecules or atoms to get closer together

In which ways are condensation and freezing similar?

• both cause the particles (atoms & molecules) to get closer together

• both cause the particles to speed up

• both cause the particles to move farther apart

• both are caused by the addition of heat energy

Which organism is a producer?

• frog

• mushroom

• grass

• lizard

Which is an example of a decomposer?

• bacteria

• mouse

• hawk

• beetle

How would the woodpecker population in a forest area most likely be affected if a housing development is built in that area?

• they would produce more offspring

• they would change the color of their feathers

• they would experience a decrease in available food

• they would have more food available

After a rain, a puddle of water remains on the sidewalk. After a day of sunshine, the puddle is gone. Which process is most responsible for the disappearance of the puddle?

• transpiration

• precipitation

• condensation

• evaporation

Four containers are filled with 200 mL of water each. Different amounts of sugar are added to each container. Which container is the MOST concentrated?

• container A - 50 grams of sugar added

• container B - 25 grams of sugar added

• container C - 100 grams of sugar added

• container D - 10 grams of sugar added

Four cups of water are filled with different amounts of water. 50 grams of sugar are dissolved in each cup. Which solution is the most concentrated?

• cup A - 100 mL of water

• cup B - 200 mL of water

• cup C - 250 mL of water

• cup D - 300 mL of water

Which of the following will likely cause a decrease in predator populations?

• an increase in prey populations

• a decrease in prey populations

• a decrease in decomposers

• an increase in producers