Scientific Method
The two measurement systems are customary and
metric
The force that slows things down or stops them because the surfaces are touching is
friction
Simple machines make work ________ by _______ the amount of force needed to do something
easier, decreasing
24 hours
True/False: Plant and animal cells have a cell wall.
False
observe
The force that pulls objects together is
gravity
A ramp is an example of an
inclined plane
Earth's rotation causes
day and night
What are the two things that plants make during photosynthesis?
oxygen and glucose/sugar
A statement that can be tested to answer a question is a
hypothesis
True
An axe is an example of a
wedge
Earth revolution around the sun takes
Opposite poles of a magnet...
attract each other
True/False : an independent variable in an experiment is the thing that stays the same
false
Inertia means an object at rest... and an object in motion....
stays at rest, stays in motion
This simple machine can move things from low to high
a pulley
Earth revolves on a tilted axis which causes
_____ build up to create a static charge.
electrons
What are the 6 steps of the scientific method?
observe, question, hypothesis, test, results, conclusion
When two forces cancel each other out so there is no movement we call those forces...
balanced
This simple machine has a fulcrum
True/False the moon orbits the Earth
true
An _____ is a static electricity detector.
electroscope