Ancient Times
An ancient form of paper, made from a plant of the same name
papyrus
T or F: Science is 100% reliable
False
a push or pull that changes the motion of an object
force
What is the study of past human life as revealed by preserved relics?
archaeology
What is the study of earth's history as revealed in the rocks that make up the earth?
Geology
collected much data in favor of the heliocentric system but was forced to recant belief in it
Galileo
an educated guess that attempts to explain an observation or answer a question
hypothesis
name one of the six simple machines
lever, wheel and axle, pulley, inclined plane, wedge or screw
What is the process of counting tree rings to determine the age of a tree?
dendrochronology
What are objects made by humans, such as tools, weapons, and containers referred to?
artifacts
this group of scientists wanted to find a means to turn lead into gold
alchemists (alchemy)
a hypothesis that has been tested with a significant amount of data
theory
Is a wheelbarrow an example of a 1st, 2nd, or 3rd class lever?
2nd
distinct layers in rock are called?
strata
humus
This ancient theory stated that the planets revolve around the sun. What is the name of this system?
Heliocentric system
experiments in which neither the participants nor the people analyzing the results know who is in the control group
double-blind experiments
in a lever the load that is being lifted is called what?
resistance
The ? of Superstition says that when artifacts are found in rock or earth that is layered, the deeper layers hold the older artifacts.
Principle
Name the 3 types of rock that make up the earth's crust
1. sedimentary
2. igneous
3. metamorphic
This is one of the greatest scientist of all time. He laid down the laws of motion, developed the law of universal gravity, and invented calculus.
What are the steps in the scientific method? (If you give 2 you can get credit)
1. make observations
2. form a hypothesis
3. perform experiments to confirm the hypothesis
4. perform many experiments over the years
5. theory is now a law
Solve: A person constructs a 2nd class lever in which the fulcrum is 1 foot from the resistance. The effort is 3 feet from the fulcrum. What is the mechanical advantage?
MA = (distance from fulcrum to effort) / (distance from fulcrum to resistance)= 3/1 = 3
In which test of documents is Aristotle's dictum used?a. the internal test
b. the external test
c. the bibliographic test
d. the Malley test
A. the internal test
Rain that that wears away a tombstone is an example of what type of weathering?
Chemical