Back to School Night! - Are you smarter than an 8th grade science student?

What does natural selection mean?

• Organisms with favorable traits produce more successful offspring than organisms with less favorable traits. This causes the favorable traits to become more common in the population

• Organisms without favorable traits produce more successful offspring that carry those traits into the greater population of the species.

• I slept through my middle school classes

• Organisms are constantly struggling to keep up with one another in an evolutionary race between predator and prey species.

The following diagram shows where, in layers of rock, fossils of certain organisms are found. The information in the diagram supports which of the following conclusions?

• rock and roll is the only type of rock I'm interested in

• Trilobites became extinct before dinosaurs appeared on Earth.

• I've gotten stung by a jellyfish once...?

• Dinosaurs went extinct before Trilobites.

Comparing the embryos of different animals can show relationships that can’t be seen when comparing the fully formed animals. Why is this the case?

• animals are fun to learn about...

• I don't even know what an embryo is?

• Adult animals can have parts that are not present in the undeveloped embryo.

• Embryos can have parts that are not present in the fully formed animals.

Which of the following is required for a trait to become more common over time in a population?

• The trait suggests that the mate is more physically capable in their environment, and will yield more opportunities for reproduction.

• traits...hmm my son and daughter inherited MY wonderful traits ;)

• The trait leads to obtaining more food for the mate, and will yield more capable offspring.

• Material wealth and job security.

People move into and begin living in an area that previously had no human activity. What will most likely be the effect on the amount of water available in the environment?

• water.. that reminds me.. I'm thirsty!

• Humans will consume some of the water because they are an organism that requires water to survive.

• Nothing will happen to the amount of available water in the area.

• The available water will disappear, because humans use water for drinking, cooking, washing, and cleaning.

Factories that burn coal produce smoke with harmful chemicals, such as sulfur. Scrubbers are devices that are attached to the smokestacks to reduce the amount of sulfur put into the atmosphere. To evaluate the effectiveness of these devices, what data would need to be collected?

• Scrubbing dishes is the only time I've heard of the word "scrubber"

• Measure the amount of sulfur in the air before and after the scrubbers are attached to the local factory.

• The amount of sulfur emitted by a smokestack before and after the scrubber is attached

• science is not my thing..

Think of an apple tree. At which position on the tree, would an apple have the greatest potential energy?

• The highest apple on the tree would have the greatest potential energy.

• The lowest apple on the tree would have the greatest potential energy.

• The apple that you give your teacher has the greatest potential.

• The apple with all of the "In-Cider" information.

What is the force that pulls you into your seat when experiencing a high acceleration?

• The Force of Momentum

• The Force

• The Force of Inertia

• The Force of Friction

Sir Isaac Newton is the father of Newtonian Physics. Put a check mark on all of the statements that summarize his laws. (Three summaries must be checked for the correct answer)

• An object in motion stays in motion while an object at rest stays at rest.

• An object in motion requires continuous force to maintain its motion.

• An object's force can be measured by multiplying the object's mass by its acceleration.

• An object will come to the lowest energy level possible.

• For every action, there is an equal and opposite reaction.

At which point is the Kinetic Energy of the roller coaster the greatetst?

• A

• B

• C

• D