Forces & Motion
•What law states that every action has an equal and opposite reaction?
•Newton’s Third Law
What type of wave moves through vibrations parallel to the direction of travel?
Longitudinal wave
How long does it take the moon to revolve around the Earth?
(~1 month or 28 days)
What is a mutation?
A change in the DNA sequence
What are preserved remains or traces of organisms called?
Fossils
•What happens to acceleration when mass increases but force stays the same?
Acceleration decreases
What happens to energy when amplitude increases?
Energy increases
What causes the seasons? (2 parts)
Earth's tilt ~23.5 degrees and orbit around the sun
What do genes code for that directly affect traits?
Proteins
What does a deeper rock layer usually indicate about a fossil?
It is older
What is the term for forces that cancel each other out?
Balanced forces
What is it called when a wave bounces off a surface?
Reflection
What phase is the moon when it is fully illuminated?
Full moon
Mutations can be _____,______, & ______
Beneficial, Harmful or Neutral
What is the process by which organisms better adapted to their environment survive and reproduce?
Natural selection
What force pulls objects toward Earth?
Gravity
Which type of signal is more reliable: analog or digital?
Digital
What happens during a solar eclipse?
The Moon blocks the Sun
What structure carries genetic information?
DNA
How do fossils provide evidence for evolution?
They show how organisms have changed over time
What affects the strength of the gravitational force between two objects? (2 answers)
Mass and distance
What two factors affect kinetic energy?
Mass and speed
Double Jeopardy: (Draw out and name the 8 phases of the moon)
Check Paper
DNA and RNA partners
DNA: A & T, C & G
RNA: A & U, C & G
Final Question: How can mutations and fossil evidence together explain how species change over time?
Mutations create variation, and fossils show how those changes accumulate over generations through natural selection