Space
What is the most important force affecting how galaxies form?
Gravitational Force
If there is 5N of force to the left and 5N to the right it is a (balance or unbalanced) force.
balanced
What does the Law of Superposition state?
A. older fossils are located closer to the surface
B. newer fossils are located deeper below the surface
C. older fossils are located deeper below the surface
C
Scientific law that states fossils located in deeper sediment layers are older than ones deposited in layers closer to the surface
A characteristic of an organism is called its:
A. DNA
B. Trait
C. Chromosome
Trait (either genetically inherited or acquired through the pressures exerted on it by its environment)
The energy of motion is:
A. Kinetic Energy
B. Potential Energy
Kinetic Energy
During a lunar eclipse, the relative positions of the Earth, Sun, and Moon make it so the ___________ is in the middle of the other two.
Earth
During our marble in a pie tin relay race outside we saw that a lot of marbles rolled off the pie tins when turning a corner (an object in motion will stay in motion). This is an example of Newton's _____ Law.
First
Rock strata are layers of rock where fossils are often found. Strata occur in sedimentary, igneous, or metamorphic rock?
sedimentary
What are the four letters used to represent the four nucleotide bases that make up our genetic code.
A, T, C, G
Potential energy (increase or decreases) as the object is lifted higher above the ground.
increases
What are the two factors that affect the gravitational pull between two objects?
Mass & Distance between the objects
If there is an unbalanced force on an object, the object will _______________ .
Accelerate
Name two categories of fossils.
Mold, Cast, Trace, Carbon Film, Petrified, Actual Remains
Selective breeding of crops and farm animals is an example of ______________ .
Artificial Selection
False. The total amount of energy stays the same but just changes form (all potential energy as a ball is held above the ground but changes to kinetic as it picks up speed).
Mercury; it lacks a thick atmosphere and, therefore, doesn't have a protective gaseous layer to burn up asteroids before colliding with its surface.
What is Newton's Third Law of Motion?
For every force there is an opposite and equal force.
How do geologists know the age of a rock strata and fossils within it?
This does not refer to the relative age using the Law of Superposition.
Radioactive Dating: Technique used to determine how old a rock is by analyzing the amounts of a radioactive isotope and its decay products in the rock
What is the correct order from smallest to largest of these genetic components?
DNA, genes, chromosomes, nucleotides
nucleotides, genes, DNA, chromosomes
In our dominos lab (setting up a chain reaction), what was one way you could increase the kinetic energy of the domino chain?
going down a slope (increases velocity)
use bigger dominos/object (increases mass)
What is the name of the Lunar Phase after the Moon has traveled 135 degrees in its orbit from the New Moon?
Waxing Gibbous
What is the equation for Newton's Second Law of Motion and the units for each variable?
Force = Mass x Acceleration
(Newtons = Kilograms x meters/second2)
What was one observation or trend that we noticed after drawing our evolutionary timeline on our desks?
1. aquatic life evolved first
2. after mass extinctions there was more diversification of life (speciation)
3. speciation occurred slowly a long time ago and rapidly more recently
Natural selection will cause:
Populations to _________ when there is overproduction and __________ for resources.
Populations to _______ when there is genetic _________ that gives an advantage.
Populations to DECREASE when there is overproduction and COMPETITION for resources.
Populations to INCREASE when there is genetic VARIATION that gives an advantage.
What is the equation for kinetic energy?
KE=½mass x velocity2